**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 7697-37-2 |Nitric acid | 20-70 | 231-714-2 |
|----------------|--------------------------------------|----------|-----------|
| 7732-18-5 |Water | 30-80 | 231-791-2 |
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: C
Risk Phrases: 35
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Causes severe burns.
Potential Health Effects
Eye:
Causes severe eye burns. Direct contact with liquid may cause
blindness or permanent eye damage.
Skin:
Causes skin burns. May cause deep, penetrating ulcers of the skin.
Concentrated nitric acid dyes human skin yellow on contact.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes
gastrointestinal tract burns. May cause perforation of the digestive
tract. May cause systemic effects.
Inhalation:
Effects may be delayed. Causes chemical burns to the respiratory
tract. Inhalation may be fatal as a result of spasm, inflammation,
edema of the larynx and bronchi, chemical pneumonitis and pulmonary
edema. Aspiration may lead to pulmonary edema. May cause systemic
effects. May cause acute pulmonary edema, asphyxia, chemical
pneumonitis, and upper airway obstruction caused by edema.
Chronic:
Exposure to high concentrations of nitric acid vapor may cause
pneuomonitis and pulmonary edema which may be fatal. Symptoms may or
may not be delayed. Continued exposure to the vapor & mist of nitric
acid may result in a chronic bronchitis, & more severe exposure
results in a chemical pneumonitis. The vapor & mists of nitric acid
may erode the teeth, particularly affecting the canines & incisors.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Get medical aid immediately. Do NOT allow victim to rub eyes or keep
eyes closed. Extensive irrigation with water is required (at least 30
minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes. Wash clothing before reuse. Destroy contaminated shoes.
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.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen. Do NOT use mouth-to-mouth
resuscitation. If breathing has ceased apply artificial respiration
using oxygen and a suitable mechanical device such as a bag and a
mask.
Notes to Physician:
Treat symptomatically and supportively.
**** 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. Strong oxidizer. Contact with other material may
cause fire. During a fire, irritating and highly toxic gases may be
generated by thermal decomposition or combustion. Use water spray to
keep fire-exposed containers cool. May react with metal surfaces to
form flammable and explosive hydrogen gas. Approach fire from upwind
to avoid hazardous vapors and toxic decomposition products.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
**** 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.
Clean up spills immediately, observing precautions in the Protective
Equipment section. Absorb spill using an absorbent, non-combustible
material such as earth, sand, or vermiculite. Do not use combustible
materials such as sawdust. Provide ventilation. Evacuate unnecessary
personnel. Approach spill from upwind. Use water spray to cool and
disperse vapors and protect personnel.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Do not breathe dust, vapor, mist, or gas. Do not
get in eyes, on skin, or on clothing. Keep container tightly closed.
Avoid contact with clothing and other combustible materials. Discard
contaminated shoes. Do not use with metal spatula or other metal
items. Use only with adequate ventilation or respiratory protection.
Storage:
Do not store near combustible materials. Do not store in direct
sunlight. Keep container closed when not in use. Store in a cool,
dry, well-ventilated area away from incompatible substances. Keep
away from metals. Store away from alkalies. Separate from organic
materials. Inspect periodically for damage or evidence of leaks or
corrosion.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate general or
local exhaust ventilation to keep airborne concentrations below the
permissible exposure limits. Use a corrosion-resistant ventilation
system.
Exposure Limits
CAS# 7697-37-2:
United Kingdom, WEL - TWA: 2 ppm TWA; 5.2 mg/m3 TWA
United Kingdom, WEL - STEL: 4 ppm STEL; 10 mg/m3 STEL
United States OSHA: 2 ppm TWA; 5 mg/m3 TWA
Belgium - TWA: 2 ppm VLE; 5.3 mg/m3 VLE
Belgium - STEL: 4 ppm VLE; 10 mg/m3 VLE
France - VME: 2 ppm VME; 5 mg/m3 VME
France - VLE: 4 ppm VLE; 10 mg/m3 VLE
Germany: 2 ppm TWA; 5.2 mg/m3 TWA
Japan: 2 ppm OEL; 5.2 mg/m3 OEL
Malaysia: 2 ppm TWA; 5.2 mg/m3 TWA
Netherlands: 0.5 ppm STEL; 1.3 mg/m3 STEL
Russia: 2 mg/m3 TWA
Spain: 2 ppm VLA-ED; 5.2 mg/m3 VLA-ED
Spain: 4 ppm VLA-EC; 10 mg/m3 VLA-EC
CAS# 7732-18-5:
Personal Protective Equipment
Eyes:
Wear chemical splash goggles and face shield.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate clothing to prevent skin exposure.
Respirators:
Wear a NIOSH/MSHA or European Standard EN 149
approved full-facepiece airline respirator in the
positive pressure mode with emergency escape
provisions.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Color: clear to yellow
Odor: strong odor - acrid odor - suffocating odor
pH: 1.0 (0.1M soln)
Vapor Pressure: 7.1 mm Hg @ 20 deg C (70% acid)
Viscosity: 0.761 cps @ 25 deg C
Boiling Point: 86 deg C
Freezing/Melting Point: -42 deg C
Autoignition Temperature: Not available.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble in water.
Specific Gravity/Density: 1.4
Molecular Formula: HNO3
Molecular Weight: 63.01
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable. Decomposes when in contact with air, light, or organic
matter. The yellow color is due to release of nitrogen dioxide on
exposure to light.
Conditions to Avoid:
High temperatures, light, confined spaces.
Incompatibilities with Other Materials:
Metals, reducing agents, strong bases, acetic acid, alcohols,
acetone, aniline, hydrogen sulfide, metal powders, carbides,
aldehydes, organic solvents, combustible materials, chromic acid,
flammable liquids, cyanides, sulfides, Incompatible with many
substances.
Hazardous Decomposition Products:
Nitrogen oxides.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 7697-37-2: QU5775000 QU5900000
CAS# 7732-18-5: ZC0110000
LD50/LC50:
CAS# 7697-37-2: Inhalation, rat: LC50 = 260 mg/m3/30M; Inhalation,
rat: LC50 = 130 mg/m3/4H; Inhalation, rat: LC50 = 67 ppm(NO2)/4H.
CAS# 7732-18-5: Oral, rat: LD50 = >90 mL/kg.
Carcinogenicity:
Nitric acid -
Not listed by ACGIH, IARC, or NTP.
Water -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Other
No information available.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Products which are considered hazardous for supply are classified as Special
Waste and the disposal of such chemicals is covered by regulations which may
vary according to location. Contact a specialist disposal company or the local
waste regulator for advice. Empty containers must be decontaminated before
returning for recycling.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: NITRIC ACID
Hazard Class: 8
UN Number: 2031
Packing Group: II
IMO
Shipping Name: NITRIC ACID
Hazard Class: 8
UN Number: 2031
Packing Group: II
RID/ADR
Shipping Name: NITRIC ACID
Hazard Class: 8
UN Number: 2031
Packing group: II
USA RQ: CAS# 7697-37-2: 1000 lb final RQ; 454 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 35 Causes severe burns.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 36 Wear suitable protective clothing.
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# 7697-37-2: 1
CAS# 7732-18-5: No information available.
Canada
CAS# 7697-37-2 is listed on Canada's DSL List.
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 7697-37-2 is listed on Canada's Ingredient Disclosure List.
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7697-37-2 is listed on the TSCA inventory.
CAS# 7732-18-5 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
Text for R-phrases from Section 2
MSDS Creation Date: 9/30/1998 Revision #13 Date: 12/14/2004
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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