Date: Tue, 6 Jan 2009 21:21:12 +0000
Reply-To: porterjb**At_Symbol_Here**COMCAST.NET
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: porterjb**At_Symbol_Here**COMCAST.NET
Subject: Re: HF Response
In-Reply-To: <1490684846.144831231276654459.JavaMail.root**At_Symbol_Here**>
The DuPont MSDS for HF is copied below. Stay safe......Jim 

The MSDS format adheres to the standards and regulatory requirements 

of the United States and may not meet regulatory requirements 

in other countries. 

DuPont Page 1 

Material Safety Data Sheet 


Hydrofluoric Acid (10-48%) 

6373CR Revised 14-MAY-2005 





Material Identification 

CAS Number : 7664-39-3 

Molecular Weight : 20.01 

CAS Name : Hydrogen Fluoride 

Tradenames and Synonyms 

Hydrogen Fluoride 


Fluorohydric Acid 

Fluoric Acid 

HF in Aqueous Solution 

Company Identification 


DuPont Fluoroproducts 

1007 Market Street 





Product Information : 1-(800)-441-7515 

Transport Emergency : 1-(800)-424-9300 

Medical Emergency : 1-(800)-441-3637 





Material CAS Number % 

*Hydrogen Fluoride 7664-39-3 10-48 

Water 7732-18-5 52-90 

* Disclosure as a toxic chemical is required under Section 313 of 

Title III of the Superfund Amendments and Reauthorization Act of 1986 

and 40 CFR part 372. 

6373CR DuPont Page 2 

Material Safety Data Sheet 




Potential Health Effects 


Depending on the concentration and duration of exposure, skin 

contact may produce pain, redness of skin, and deep slow-healing 

burns. Acid concentrations of more than 50% in water (including 

anhydrous hydrogen fluoride) cause immediate severe, throbbing 

pain and a whitish discoloration of the skin. Burns may be 

excruciatingly painful, deep-seated and slow healing. Hydrogen 

Fluoride aqueous solutions from 20% to 50% may produce pain, 

swelling, and blisters which may be delayed up to 8 hours. 

Hydrogen Fluoride solutions of less than 20% cause almost no 

immediate pain on contact but may cause delayed serious injury 12 

to 24 hours later; latent skin burns with necrosis can occur even 

at concentrations of at least 2%. Healing of skin burns caused by 

concentrated Hydrogen Fluoride may be prolonged, and extensive 

scarring may result. 

In some forms, fluoride can readily penetrate the skin and deep 

tissue causing destruction of soft tissue and decalcification of 

bone. Tissue destruction and neutralization of HF may proceed for 

days. HF can be absorbed through the skin in toxic amounts. 


Mild effects of Hydrogen Fluoride exposure include rapid onset of 

eye irritation with discomfort, tearing, or blurring of vision. 

More severe effects, which may result from even minor Hydrofluoric 

acid splashes, include sloughing of the surface of the eye, 

swelling of various structures of the eye, corrosion of the eye 

with corneal or conjunctival ulceration and cell death due to lack 

of blood supply. Potentially permanent clouding of the eye 

surface may develop immediately or after several days. Permanent 

loss of vision can occur. 


Ingestion of Hydrogen Fluoride may cause corrosive injury to the 

mouth, throat and esophagus. Inflammation of the stomach with 

bleeding occurs commonly. Nausea, vomiting, diarrhea, and 

abdominal pain may occur. Systemic effects are likely. An 

acid-base imbalance can occur after acute ingestion. Pulmonary 

aspiration may lead to respiratory complications. Hydrogen 

Fluoride ingestion may cause progressive damage to the esophagus 

and stomach for weeks after ingestion. Persistent narrowing of 

the esophagus may result. Death may occur. 


6373CR DuPont Page 3 

Material Safety Data Sheet 


Inhaled Hydrogen Fluoride mist or vapor initially affects the 

nose, throat, and eyes. Mild clinical effects include 

mucous-membrane irritation and inflammation, cough, and narrowing 

of the bronchi. Severe clinical effects include an almost 

immediate narrowing and swelling of the throat, causing upper 

airway obstruction and lung injury that may evolve rapidly or may 

be delayed in onset for 12 to 36 hours. These severe effects can 

include choking and coughing; severe throat irritation followed by 

fever, chills, difficulty in breathing, cyanosis and pulmonary 

edema, accumulation of fluid in the lungs, constriction of the 

bronchi, and partial or complete lung collapse can occur. Death 

may occur. Pulmonary effects can result even from Hydrogen 

Fluoride splashes on the skin due to inhalation of fumes from the 

area splashed. 


Overexposure by inhalation or skin contact may lead to systemic 

effects. These effects are due to Hydrogen Fluoride=E2=80=99s penetration

of cells and its rapid dissociation into hydrogen and fluoride 

ions. The dissociated fluoride can penetrate and migrate into 

tissue and bind with calcium primarily, but also magnesium, 

sodium, and potassium. Local bone demineralization, systemic 

deficiency of calcium (hypocalcemia) and magnesium, and excess 

potassium can occur. Hypocalcemia can lead to life-threatening 

cardiac arrhythmias. The adverse effect of the fluoride ion may 

progress for several days after exposure. 

Prolonged exposure to Hydrogen Fluoride vapor can cause fluorosis 

which may also result in weight loss, brittle bones, anemia, 

weakness and stiffness of joints, and discoloration of the teeth 

when exposure occurs during tooth formation. 

Carcinogenicity Information 

None of the components present in this material at concentrations 

equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH 

as a carcinogen. 




Compound-Specific First Aid & Notes to Physicians 

Speed in removing exposed personnel from contaminated area and in 

removing HF from skin or eyes is of primary importance. First aid 

must be started immediately, within seconds, in all cases of 

contact with hydrofluoric acid in any form. All potentially 

exposed personnel should be trained in first aid care for HF 

burns. First aid actions should be planned before beginning work 

with HF. Calcium gluconate gel should be readily accessible in 

areas where HF exposure potential exists. 

6373CR DuPont Page 4 

Material Safety Data Sheet 


Medical assistance should be obtained promptly for all affected 

persons. The doctor should be informed in detail of the accident. 

HF differs from other acids in that the fluoride ion readily 

penetrates skin, causing destruction of deep tissue layers 

including bone. Unlike the action of other acids, which are 

rapidly neutralized, this process may continue for days. 

HF contaminated oils and tars may require additional first aid 

steps because water washing may not completely remove the oil or 

tar. Sites that have potential for HF contaminated oils or tars 

should develop appropriate procedures to remove the oil/tar from 

the skin to allow treatment. 

The following are DuPont=E2=80=99s first aid recommendation for HF 

exposures, however, modifications may be required to comply with 

local or state medical board regulatory requirements. 


IMMEDIATELY shower with large quantities of water, within seconds 

after contact or suspected contact, and completely remove all 

clothing while in shower (remove goggles last). FLUSH SKIN 


thoroughly for 5 minutes is sufficient to effectively remove HF 

from skin. Additional flushing time is unnecessary and will delay 

further treatment. 

Apply calcium gluconate (2.5%) gel at burn site or area of 

contamination by rubbing in continuously. Wear impervious gloves. 

Examination and treatment by a physician is recommended as quickly 

as feasible. It may be necessary to transport patient to nearest 

hospital emergency room. Remember that concentrated HF causes 




IMMEDIATELY flush eyes with large quantities of water for 5 

MINUTES while holding the eyelids apart. Trained personnel should 

apply calcium gluconate 1% (no stronger) by continuous drip. If 

skills are available at the scene, a Morgan Theraupeutic Lens can 

be used to irrigate the eyes with a calcium gluconate 1% solution. 




IMMEDIATELY remove the patient to an uncontaminated atmosphere. 

Call a physician. Administer oxygen as soon as possible. Trained 

personnel should provide calcium gluconate, 2.5% solution, by 

nebulizer with patient in sitting position. Keep patient warm. 

6373CR DuPont Page 5 

Material Safety Data Sheet 


Patients not breathing 

If exposed person is not breathing, do not give mouth to mouth 

resuscitation; instead use an Ambu-bag. Do not administer any 

liquids or solids to an unconscious person. 


DO NOT induce vomiting. If patient is conscious, give water 

orally to dilute followed by antacid or milk. Seek medical 

assistance immediately. Call a physician. Throat burns may cause 

severe swelling and require a tracheotomy (opening the windpipe). 

The patient should be admitted to the hospital and carefully 



The following materials have been found to be useful and effective 

in the treatment of hydrogen fluoride burns, and should be on hand 

at the First Aid Station: 

o Calcium gluconate gel - 2.5%. This gel is prepared by mixing 1 

standard ampule (10 mL, 10%) of USP calcium gluconate with 1-ounce 

of water soluble lubricant (e.g., K-Y Lubricating Jelly, Johnson & 


The shelf life of the gel has not been determined. A periodic 

replacement period should be specified (ie., annually). Storage 

of gel has limitations and refrigeration may help. Avoid freezing 

the gel as calcium may precipitate out and reduce its 


o Calcium gluconate 10% (standard ampules). 

o One percent calcium gluconate in normal, sterile saline 

solution. Make by mixing 1 standard ampule per 90 mL of saline 


o 2.5% calcium gluconate in normal, sterile saline solution. Make 

by mixing 1 standard ampule per 30 mL of saline solution. 

Solution (both 1% and 2.5%) shelf-life has not been determined. A 

periodic replacement period should be specified (ie., every 6 


o Milk of magnesia or other liquid antacid. 

o 99% pure USP medical oxygen with regulator and mask. 

o Impervious gloves. 

o Nebulizer. 

o Blanket. 

o Shower facilities. 

o Ambu bag. 

o Nasal cannula units and Morgan Therapeutic Lens (for eye 



Choice of therapy following first aid measures is at the 

discretion of attending physician. Selection of the best 

treatment will depend on the following factors: 

6373CR DuPont Page 6 

Material Safety Data Sheet 


o Concentration and temperature of the HF. 

o Degree and extent of the burn. 

o Duration of exposure. 

o Areas of the body affected. 

o Elapsed time since exposure. 

o First aid measures taken before physician=E2=80=99s arrival. 

o Age and clinical history of patient. 

o General condition of the patient. 

The following methods, using materials listed under MEDICAL 

SUPPLIES, have been effective in treatment of HF burns. Methods 

are broken down by routes of exposure. Minor exposures are 

limited exposures to HF liquid and vapor. Major exposures are 

extensive exposures to HF liquid and vapor and all cases of 

combined routes of exposure, e.g., skin and inhalation exposures. 

Patients suffering suspected face or chest skin exposure should be 

assumed to have incurred inhalation exposure also. Be certain 

that the patient has been properly decontaminated. 

In all cases of major exposure by HF, hypocalcemia may be present, 

therefore, calcium levels must be determined immediately upon 

arrival at the hospital. During hospitalization calcium levels 

should be monitored frequently. If possible, blood should be 

drawn for serum calcium in site medical facility and sent to the 

hospital with the patient. 

Cardiac monitoring (EKG) is necessary (hypocalcemia causes 

prolonged Q-T interval and may cause cardiac rhythm 

abnormalities). Renal and liver function should be monitored. 

In major inhalation exposure, pulmonary edema or edema of upper 

airway may occur. Blood gases should be monitored accordingly. 

SKIN CONTACT: Care should be taken to see that personnel who 

apply the gel, especially on the initial application, wear medical 

gloves to prevent skin contamination with HF and the development 

of hand burns. 

Topically applied Calcium Gluconate Gel (2.5%) must be rubbed into 

all burn areas continuously until pain has completely subsided, 

but not longer than 30 minutes. Calcium gluconate gel should not 

be used until after thorough and complete washing of the skin with 

water for 5 minutes. If some relief of pain is not obtained 

within 20-30 minutes, consider calcium gluconate topical 

injections using stainless steel needle. 

6373CR DuPont Page 7 

Material Safety Data Sheet 


Severe Skin Burns: 

When there is evidence of skin penetration as in second or third 

degree burns or for large burns, a 5% calcium gluconate solution 

may be injected using a small gauge needle (no. 30) by 

infiltrating the skin and subcutaneous tissues in the same manner 

as injection of any local anesthetic. The standard ampoule of 10% 

calcium gluconate for intravenous use must be diluted to 5% by 

mixing with an equal amount of normal sterile saline. Care should 

be taken to avoid overdosing with calcium. Do not inject more 

than 0.5 mL per square centimeter of affected skin surface. No 

local infiltration of anesthetic should be used, but in the case 

of severe burns, regional or general anesthesia may be considered. 

DO NOT INJECT CALCIUM CHLORIDE to treat skin burns. 

In cases of overexposure due to HF, as in skin burns of greater 

than approximately 2 square inches (13 cm2) in area, hypocalcemia 

may be present. Therefore, systemic administration of calcium 

gluconate may be necessary. Infusions can be repeated until serum 

calcium, EKG or symptoms improve. Frequent monitoring of serum 

calcium, cardiac, renal, and hepatic functions is necessary. 

Treat hypomagnesemia with 1-2 grams of magnesium. 

HAND BURNS: The treatment for hand burns require expert 

assistance; consult a hand surgeon. Intra arterial calcium 

infusions have been successfully used to treat HF hand exposures. 

Calcium gluconate in very small doses can be injected into the 

fingers. In some cases, burr holes must be drilled in the nail or 

the nail must be split or removed to permit adequate contact with 

the sequestering agent. Local anesthesia may be required, but be 

aware that it may interfere with determining the adequacy of 

treatment. Care must be used because multiple injections into the 

fingers can lead to pressure necrosis. Patients whose skin has 

compromised integrity may have an increased risk of infection 

after multiple injections of calcium gluconate. Consider the use 

of antibiotic creams such as Silvadene or Garamycin in these cases. 

EYE CONTACT: Immediate washing of the eyes with large quantities 

of water for 5 minutes should be followed by continuous drip of 1% 

calcium gluconate (no stronger) in normal, sterile saline using a 

nasal prong or Morgan Lens. Up to 500 mL over 1-2 hours may be 

used. A topical anesthetic can minimize the tendency of the 

eyelid to close and facilitate inserting an irrigation lens. If 

exposure was minor, perform visual acuity testing and examine the 

eyes for corneal damage using fluorescein and a slit lamp. An eye 

specialist (ophthalmologist) should be consulted immediately. 

6373CR DuPont Page 8 

Material Safety Data Sheet 


VAPOR INHALATION: Persons suspected of having had HF exposure by 

inhalation should immediately be given 100% oxygen by mask or 

catheter. As soon as possible (as precautionary treatment), they 

should be administered (in the sitting position and utilizing a 

nebulizer) 2.5% calcium gluconate solution by inhalation for 20 

minutes. All those suspected of HF exposure and who experience 

signs and/or symptoms of respiratory irritation should be 

considered as strong candidates for admission to an intensive care 

unit for careful observation during the first 24-48 hours. 

Delayed pulmonary edema is likely in patients with burns of the 

skin of face or neck. 

Patient should be carefully watched for edema of the upper airway 

with respiratory obstruction and the airway maintained by 

tracheotomy or endotracheal intubation if necessary. The 

administration of respiratory care should be very closely 

supervised and most likely includes continued administration of 

2.5% calcium gluconate by inhalation. Toxicity from pulmonary 

absorption of fluoride ion may rapidly develop in the liver and 

kidneys and may require more energetic measures of control, up to 

and including hemodialysis, particularly if the blood urea 

nitrogen and potassium levels rise. Supportive care is necessary 

for all organ systems. 



measures as described. Extreme throat swelling may cause airway 

obstruction, which may require endotracheal intubation or 





Flammable Properties 

Will not burn. 

HF (particularly in dilute aqueous solutions) will attack 

most metals, releasing potentially explosive hydrogen gas. 

Follow appropriate National Fire Protection Association 

(NFPA) codes. 

Extinguishing Media 

Water Fog, Dry Chemical, CO2. 

Fire Fighting Instructions 

Keep upwind. If there is any possibility of direct contact, 

wear full acid suit with hood, boots and self-contained 

breathing apparatus. Run-off from fire control may cause 

pollution; neutralize with lime. 

6373CR DuPont Page 9 

Material Safety Data Sheet 




Safeguards (Personnel) 


sections before proceeding with clean-up. Use appropriate 


Accidental Release Measures 

Evacuate area and keep upwind until gas has dispersed. 

Enter contaminated area only with full protective equipment 

and self-contained breathing apparatus. Dike spill. Dilute 

with water fog (direct addition of water or alkali causes 

heat and violent spattering). Neutralize with lime. Do not 

flush to sewer. Comply with Federal, State, and Local 

regulations on reporting releases. 

WATER MITAGATION: The use of water sprays on HF vapors from 

a release have been found to be effective in removing HF 

from the air, and thus lowering the amount leaving the spill 

area. HF removal efficiencies of 25% - 90% have been 

demonstrated at water to HF ratios of 6:1 to 60:1. Do NOT 

spray water directly on the leak source as increased 

corrosion may occur making the leak larger. 

DuPont Emergency Exposure Limits (EEL) are established to 

facilitate site or plant emergency evacuation, and specify 

airborne concentrations of brief durations which should not 

result in permanent adverse health effects or interfere with 

escape. These limits are used in conjunction with 

engineering controls/monitoring and as a aid in planning for 

episodic releases and spills. For more information on the 

applicability of EEL=E2=80=99s, contact DuPont. 

The DuPont Emergency Exposure Limit (EEL) for Hydrofluoric 

Acid are: 

100 ppm ceiling for 1 minute 

50 ppm for up to 10 minutes 

20 ppm for up to 60 minutes 



The off-site exposure limits (sixty minutes) for 

hydrofluoric acid as specified by the AIHA are: 

ERPG 1,2 ppm - The maximum airborne concentration below 

which it is believed that nearly all individuals could be 

exposed for up to one hour without experiencing other than 

mild, transient adverse health effects or without perceiving 

a clearly defined objectionable odor. 

ERPG 2, 20 ppm - The maximum airborne concentration below 

6373CR DuPont Page 10 

Material Safety Data Sheet 


which it is believed that nearly all individuals could be 

exposed for up to one hour without experiencing or 

developing irreversible or other serious health effects or 

symptoms which could impair an individual=E2=80=99s ability to take 

protective action. 

ERPG 3, 50 ppm - The maximum airborne concentration below 

which it is believed that nearly all indivudals could be 

exposed for up to one hour without experiencing or 

developing life-threatening health effects. 




Handling (Personnel) 

Do not breathe vapor or mist. Do not get in eyes, on skin, or on 

clothing. Wash thoroughly after handling. 

Keep containers closed. 


Keep away from heat, sparks, and flame. Keep container 

tightly closed. Drainage facilities should be constructed 

for containment of small spills. 


HF may react with steel, forming iron fluorides. During 

storage tank cleaning, iron fluoride particles may be 

released which, if inhaled, may cause lung damage. Iron 

fluoride scale reacts with water to produce HF, which may 

cause delayed burns when skin or eye contact occurs. 




Engineering Controls 

Use only with ventilation sufficient to keep vapor 

concentrations below the exposure limit. Use forced draft 

ventilation and scrubbers for fume control. 

Personal Protective Equipment 


Wear chemical splash goggles. In addition, where the 

possibility exists for face contact due to splashing or 

spraying of the material, wear a full-length face shield/ 

chemical splash goggle combination or an acid hood. 


6373CR DuPont Page 11 

Material Safety Data Sheet 


If exposure limits may be exceeded, wear NIOSH 

approved respiratory protection. 


Where there is potential for skin contact, have available 

and wear as appropriate: acid resistant rubber gauntlet 

gloves, boots, and acid resistant jacket and pants. If 

there is any possibility of direct contact, wear a full 

acid suit of acid resistant material with hood, 

gloves, boots, and full-face air supplied respirator. The 

highest degree of protection, used for large leaks or in an 

emergency situation, is provided by a fully encapsulating 

acid resistant suit (one piece construction) with a 

self-contained breathing apparatus. 

Protective clothing and equipment should not be worn or 

carried outside of the operating area. Wash protective 

clothing and equipment under a safety shower after exposure, 

or suspected exposure, to hydrofluoric acid. 

Note: In an emergency leak situation, avoid contacting 

fully encapsulating suits with a liquid stream of HF because 

permature suit failure may occur. 

# Exposure Guidelines 

Exposure Limits 

Hydrofluoric Acid (10-48%) 

PEL (OSHA) : 3 ppm, 8 Hr. TWA, as F 

TLV (ACGIH) : 0.5 ppm, 8 Hr. TWA, as F 

Ceiling 2 ppm, as F 

AEL * (DuPont) : 3 ppm, 15 minute TWA 

* AEL is DuPont=E2=80=99s Acceptable Exposure Limit. Where governmentally

imposed occupational exposure limits which are lower than the AEL 

are in effect, such limits shall take precedence. 




Physical Data 

Boiling Point : 104-108 C (219-226 F) 

Melting Point : -11 to -36 C (12 to -33 F) 

Solubility in Water : Infinitely soluble 

Odor : Acrid 

Form : Fuming, liquid 

Color : Clear, colorless 

Specific Gravity : 1.17-1.18 

pH : ~2 2% aqueous solution 

6373CR DuPont Page 12 

Material Safety Data Sheet 




Chemical Stability 

Stable, if stored in proper (steel) container. 

Incompatibility with Other Materials 

Incompatible with arsenic trioxide, phosphorous pentoxide, 

ammonia, calcium oxide, sodium hydroxide, sulfuric acid, 

vinyl acetate, ethylenediamine, acetic anhydride. 


Decomposes by reaction with metals, liberates hydrogen gas. 

On heating to decomposition, could yield toxic fumes of 

fluorides. Attacks glass and other silicon containing 

compounds. Reacts with silica to reduce silicon 

tetrafluoride, a hazardous colorless gas. Evaporation would 

produce hydrogen fluoride gas. 


Polymerization will not occur. 




Animal Data 

Hydrogen Fluoride 

Inhalation 1 hour LC50: 2300 ppm in rats 

Skin absorption 1-2 minute ALD: 500 mg/kg in mice 

Hydrogen Fluoride is corrosive to skin and eyes in tests on 


Animal inhalation studies at very high concentrations resulted in 

eye, mucous membrane and skin irritation, corneal opacities, 

respiratory distress, pulmonary congestion, and hemorrhage. Other 

short term studies show lung, heart, liver, kidney, spleen, and 

brain damage. Repeated exposure caused an uptake of fluoride into 

bones and teeth, corneal opacities, irritation or ulceration of 

skin, respiratory irritation and edema, anemia, weight loss, and 

pathological changes in the liver, lungs and kidneys. Long-term 

exposure to low concentrations by inhalation resulted in fatty 

deposits in the liver, high plasma concentrations of cholesterol, 

kidney damage and disturbances in the process involved in 

calcification. Fluoride was taken up by bones and teeth. 

Single dermal exposure to low concentrations resulted in severe 

burns. Other studies show increased fluoride content in the 

serum, lungs, liver and kidneys, and mortality. 

6373CR DuPont Page 13 

Material Safety Data Sheet 


An 18 month study in animals demonstrated no carcinogenic 

activity. Studies show that Hydrogen Fluoride causes heritable 

genetic damage in insects, but no test data are available for 

mammals. No acceptable animal test reports are available to 

define developmental or reproductive toxicity. 




Ecotoxicological Information 

Aquatic Toxicity 

96 hour LC50 in fish (species not specfied): 1-50 ppm 




Waste Disposal 

Comply with Federal, State, and Local regulations. If 

approved, may be flushed to sewer to waste treatment plant, 

or transferred to a disposal contractor. 




Shipping Information 


Proper Shipping Name : Hydrofluoric Acid, with not more than 60 

percent strength 

Hazard Class : 8 

UN No. : UN 1790 

Subsidiary Hazard Class : 6.1 (Poison) 

Packing Group : II 

Reportable Quantity : 100 lb 




U.S. Federal Regulations 

TSCA Inventory Status : Reported/Included. 


Acute : Yes 

Chronic : Yes 

Fire : No 

Reactivity : Yes 

Pressure : No 

6373CR DuPont Page 14 

Material Safety Data Sheet 



SARA Extremely Hazardous Substance -Yes 

CERCLA Hazardous Substance -Yes 

Toxic Chemical -Yes 


D-1A; E 

Country_specific Regulations 





NFPA Rating 

Health : 4 

Flammability : 0 

Reactivity : 0 


Health : 3 

Flammability : 0 

Reactivity : 2 

Personal Protection rating to be supplied by user depending on use 


Additional Information 

For further information, see DuPont=E2=80=99s Hydrofluoric Acid 

"Data Sheet" and Properties, Uses, Storage, and Handling 



The data in this Material Safety Data Sheet relates only to the 

specific material designated herein and does not relate to use in 

combination with any other material or in any process. 

Responsibility for MSDS : MSDS Coordinator 

> : DuPont Fluoroproducts 

Address : Wilmington, DE 19898 

Telephone : (800) 441-7515 

# Indicates updated section. 

This information is based upon technical information believed to be 

reliable. It is subject to revision as additional knowledge and 

experience is gained. 

End of MSDS 
----- Original Message ----- 
From: porterjb**At_Symbol_Here**COMCAST.NET 
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU 
Sent: Tuesday, January 6, 2009 8:41:10 AM GMT -05:00 US/Canada Eastern 
Subject: Re: [DCHAS-L] HF Response 

HF is extremely hazardous and any direct exposure (skin or inhalation) can 
be life threatening . DuPont makes HF and has excellent safety and treatmen
t guides and procedures. Go to their website and send a request for the inf
o via their contact e-mail.=C2=A0=C2=A0 Stay safe...Cheers, Jim 
----- Original Message ----- 
From: "Suzanne Hamm " < suzanne **At_Symbol_Here** POLYMERSOLUTIONS .COM> 
To: DCHAS-L**At_Symbol_Here**LIST. UVM . EDU 
Sent: Tuesday, January 6, 2009 8:11:41 AM GMT -05:00 US/Canada Eastern 
Subject: [DCHAS-L] HF Response 

Does anyone have a procedure for response to an HF exposure or safety guide
lines for use of HF? Some of our chemists like to use this to clean glasswa
re when nothing else will work. We have some guidelines in place now but wo
uld like to make sure everything is covered. 

Thank you, 

Suzanne Hamm 

Safety Manager 

Polymer Solutions Incorporated 

2903C Commerce Street 

Blacksburg , Virginia 24060 

(540) 961-4300 x (201), phone 

(540) 961-5778, fax 

www . PolymerSolutions .com , web-site 


Polymer Solutions Incorporated is ISO/ IEC 17025 accredited, FDA Registered
, and DEA Licensed. 



This e-mail and its attachments contain proprietary information that is int
ended only for the individual or entity indicated. =C2=A0If you are not the
 intended recipient, you are hereby notified that the disclosure, copying, 
distribution or use of the contents of this transmission is strictly prohib
ited, and no privilege or protection has been waived. =C2=A0If you have rec
eived this communication in error, please notify the sender immediately and
 then delete the message from your computer. 

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