**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 7664-39-3 |Hydrofluoric acid | 48-51 | 231-634-8 |
|----------------|--------------------------------------|----------|-----------|
| 7732-18-5 |Water | 49-52 | 231-791-2 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T+ C
Risk Phrases: 26/27/28 35
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Very toxic by inhalation, in contact with skin and if swallowed.
Causes severe burns.Corrosive.Toxic.
Potential Health Effects
Eye:
Contact with liquid or vapor causes severe burns and possible
irreversible eye damage.
Skin:
May be fatal if absorbed through the skin. Causes severe burns with
delayed tissue destruction. Substance is rapidly absorbed through
the skin. Penetration may continue for several days. Causes severe
tissue necrosis and bone destruction.
Ingestion:
Causes severe digestive tract burns with abdominal pain, vomiting,
and possible death. May cause systemic toxic effects on the heart,
liver, and kidneys. Ingestion of large amounts of fluoride may
include salivation, nausea, vomiting, abdominal pain, fever, labored
breathing. Inorganic fluorides can be harmful. Acute exposure to
fluorine compounds can lead to digestive tract burns, and abdominal
pain. Exposure to fluoride compounds can result in systemic toxic
effects on the heart, liver, and kidneys. It may also deplete
calcium levels in the body leading to hypocalcemia and death.
Contains fluoride. Human fatalities have been reported from acute
poisoning. Fluoride can reduce calcium levels leading to fatal
hypocalcemia.
Inhalation:
Harmful if inhaled. May cause severe irritation of the upper
respiratory tract with pain, burns, and inflammation. May cause
pulmonary edema and severe respiratory disturbances. Depletes calcium
levels in the body which can lead to hypocalcemia and death.
Chronic:
Chronic inhalation and ingestion may cause chronic fluoride
poisoning (fluorosis) characterized by weight loss, weakness,
anemia, brittle bones, and stiff joints. Repeated inhalation may
cause chronic bronchitis. Prolonged or repeated exposure may cause
permanent bone structure abnormalities. Chronic exposure to fluoride
compounds may cause systemic toxicity.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Get medical aid immediately. Do NOT allow victim to rub or keep eyes
closed. Eye exposure may be treated by irrigation with 1% calcium
gluconate drops after immediate and copious irrigation with water for
at least 30 minutes. Spills of HF should be flushed until medical
attention arrives. SPEEDY ACTION IS CRITICAL! GET MEDICAL ATTENTION
IMMEDIATELY!
Skin:
Discard contaminated clothing in a manner which limits further
exposure. Destroy contaminated shoes. For exposures to hydrofluoric
acid concentrations less than 20%, liberal and frequent applications
of a 2.5% calcium gluoconate gel may be applied. Spills of HF should
be flushed until medical attention arrives. SPEEDY ACTION IS
CRITICAL! GET MEDICAL ATTENTION IMMEDIATELY
Ingestion:
Do NOT induce vomiting. If victim is conscious and alert, give 2-4
cupfuls of milk or water. Never give anything by mouth to an
unconscious person. Get medical aid immediately. SPEED IS ESSENTIAL.
A DOCTOR MUST BE NOTIFIED AT ONCE.
Inhalation:
Remove from exposure to fresh air immediately. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen.
Do NOT use mouth-to-mouth resuscitation. SPEED IS ESSENTIAL, OBTAIN
MEDICAL AID IMMEDIATELY.
Notes to Physician:
Due to delayed and persistent symptoms, observe patient closely for
48 hours. Prompt action is essential in all cases of contact.
Antidote:
Always have calcium gluconate gel on hand. The use of infilitration
therapy and intraarterial therapy for hydrofluoric acid burns
resulting from concentrations greater than 20% should be made by
qualified medical personnel. Calcium gluconate may be administered
intravenously slowly to bind to the fluoride ion. This
administration needs to be monitored under the supervision of a
physician. This antidote may be contraindicated in individuals with
chronic renal failure.
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion. Reacts with
most metals to form highly flammable hydrogen gas which can form
explosive mixtures with air. Containers may explode in the heat of a
fire. Vapors may be heavier than air. They can spread along the
ground and collect in low or confined areas. Contact with metals may
evolve flammable hydrogen gas. Non-combustible, substance itself does
not burn but may decompose upon heating to produce irritating,
corrosive and/or toxic fumes.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Substance is
nonflammable; use agent most appropriate to extinguish surrounding
fire. Do NOT get water inside containers. For large fires, use water
spray, fog or alcohol-resistant foam. Do NOT use straight streams of
water. For small fires, use carbon dioxide, dry chemical, dry sand,
or alcohol-resistant foam.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Avoid runoff into storm sewers and ditches which lead to waterways.
Wear a self contained breathing apparatus and appropriate Personal
protection. (See Exposure Controls, Personal Protection section).
Neutralize spill with sodium bicarbonate. Use water spray to disperse
the gas/vapor. Remove all sources of ignition. Absorb spill using an
absorbent, non-combustible material such as earth, sand, or
vermiculite. Do not use combustible materials such as saw dust.
Provide ventilation.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Use only in a well-ventilated area. Do not breathe
dust, vapor, mist, or gas. Do not get in eyes, on skin, or on
clothing. Keep container tightly closed. Do not allow contact with
water. Discard contaminated shoes. Use caution when opening.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible
substances. Corrosives area. Do not store in metal or glass
containers.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use process enclosure, local exhaust ventilation, or other
engineering controls to control airborne levels below recommended
exposure limits. Facilities storing or utilizing this material should
be equipped with an eyewash facility and a safety shower.
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear a chemical apron. Wear appropriate protective
clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29CFR
1910.134 or European Standard EN 149. Always use a
NIOSH or European Standard EN 149 approved respirator
when necessary.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Appearance: clear, colorless
Odor: strong odor
pH: < 2.0
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 66.1 deg C
Freezing/Melting Point: -71 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble in water.
Specific Gravity/Density: 1.2 (Water=1).
Molecular Formula: HF
Molecular Weight: 20.0054
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions.
Conditions to Avoid:
Incompatible materials, metals.
Incompatibilities with Other Materials:
Substance is incompatible with over 35 specific chemicals. Please
refer to the NFPA Fire Protection Guide for specifics.
Hazardous Decomposition Products:
Irritating and toxic fumes and gases, hydrogen fluoride, fluoride
fumes.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 7664-39-3: MW7875000
CAS# 7732-18-5: ZC0110000
LD50/LC50:
CAS# 7664-39-3: Inhalation, mouse: LC50 = 342 ppm/1H; Inhalation,
rat: LC50 = 1276 ppm/1H.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
Carcinogenicity:
Hydrofluoric acid -
ACGIH: A4 - Not Classifiable as a Human Carcinogen (as F) (listed
IARC: Group 3 carcinogen (listed as ** undefined **).
Water -
Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Ecotoxicity:
Fish (fresh water) 60 ppm lethal (time period not specified).
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: HYDROFLUORIC ACID
Hazard Class: 8
UN Number: 1790
Packing Group: II
IMO
Shipping Name: HYDROFLUORIC ACID
Hazard Class: 8
UN Number: 1790
Packing Group: II
RID/ADR
Shipping Name: HYDROFLUORIC ACID SOLUTION
Dangerous Goods Code: 8(7B)
UN Number: 1790
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+ C
Risk Phrases:
R 26/27/28 Very toxic by inhalation, in contact with
skin and if swallowed.
R 35 Causes severe burns.
Safety Phrases:
S 7/9 Keep container tightly closed and in a
well-ventilated place.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36/37 Wear suitable protective clothing and
gloves.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 7664-39-3: 1
CAS# 7732-18-5: No information available.
United Kingdom Occupational Exposure Limits
CAS# 7664-39-3: OES-United Kingdom, TWA (listed as ** undefined
**): as F: 2.5 mg/m3 TWA
CAS# 7664-39-3: OES-United Kingdom, STEL as F: 3 ppm STEL; 2.5 mg/m3
STEL
Canada
CAS# 7664-39-3 is listed on Canada's DSL List.
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 7664-39-3 is listed on Canada's Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 7664-39-3: OEL-ARAB Republic of Egypt:TWA 2 ppm (2 mg/m3)
OEL-AUSTRALIA:TWA 3 ppm (2.5 mg/m3)
OEL-BELGIUM:STEL 3 ppm (2.6 mg/m3)
OEL-CZECHOSLOVAKIA:TWA 1 mg/m3;STEL 1 mg/m3
OEL-DENMARK:TWA 2 ppm (1.6 mg/m3)
OEL-FINLAND:STEL 6 ppm;Skin
OEL-FRANCE:STEL 3 ppm (2.5 mg/m3)
OEL-GERMANY:TWA 3 ppm (2 mg/m3)
OEL-HUNGARY:TWA 0.5 mg/m3;STEL 1 mg/m3
OEL-JAPAN:TWA 3 ppm (25 mg/m3)
OEL-THE NETHERLANDS:TWA 3 ppm (2 mg/m3)
OEL-THE PHILIPPINES:TWA 3 ppm (2 mg/m3)
OEL-POLAND:TWA 0.5 mg/m3
OEL-RUSSIA:TWA 3 ppm (0.1 mg/m3);STEL 0.5 mg/m3
OEL-SWEDEN:STEL 2 ppm (1.7 mg/m3)
OEL-SWITZERLAND:TWA 1.8 ppm (1.5 mg/m3);STEL 3.6 ppm (3 mg/m3)
OEL-TURKEY:TWA 3 ppm (2 mg/m3)
OEL-UNITED KINGDOM:TWA 3 ppm (2.5 mg/m3);STEL 6 ppm (5 mg/m3)
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 7664-39-3 is listed on the TSCA inventory.
CAS# 7732-18-5 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 2/20/1998 Revision #6 Date: 4/25/2002
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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