Material Safety Data
Nitric acid, reagent ACS
MSDS Name: Nitric acid, reagent ACS
Section 1 - Chemical Product and Company
Numbers: AC424000000, AC424000025, AC424000250, AC424005000
Synonyms: Azotic Acid; Engravers Nitrate; Hydrogen Nitrate.
Acros Organics N.V.
One Reagent Lane
For information in North America, call:
For emergencies in the US, call CHEMTREC:
Section 2 -
Composition, Information on Ingredients
Symbols: O C
Risk Phrases: 35 8
Section 3 - Hazards
Appearance: clear to yellow. Danger! Corrosive. Strong
oxidizer. Contact with other material may cause a fire. Causes eye and skin
burns. May cause severe respiratory tract irritation with possible burns. May
cause severe digestive tract irritation with possible burns. May cause severe
digestive tract irritation with possible burns.
No data found.
Eye: Causes severe eye burns. May
cause irreversible eye injury. May cause chemical conjunctivitis and corneal
Skin: Causes skin burns. May cause deep,
penetrating ulcers of the skin. May cause skin rash (in milder cases), and cold
and clammy skin with cyanosis or pale color.
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: Repeated inhalation may cause chronic bronchitis.
Repeated exposure may cause erosion of teeth. Effects may be delayed.
Section 4 - First Aid
Eyes: Get medical aid immediately. Do NOT allow
victim to rub 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 soap and 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
Inhalation: Get medical aid immediately.
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. If breathing has ceased apply artificial respiration using oxygen
and a suitable mechanical device such as a bag and a mask.
Physician: Treat symptomatically and supportively.
Section 5 - Fire
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 combustible materials may cause a 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. Substance is noncombustible. Use water with caution and in flooding
Extinguishing Media: Substance is noncombustible;
use agent most appropriate to extinguish surrounding fire. Contact professional
Section 6 -
Accidental Release Measures
Information: Use proper personal protective equipment as indicated in
Spills/Leaks: Absorb spill with inert material
(e.g. vermiculite, sand or earth), then place in suitable container. Avoid
runoff into storm sewers and ditches which lead to waterways. Clean up spills
immediately, observing precautions in the Protective Equipment section.
Neutralize spill with sodium bicarbonate. Remove all sources of ignition.
Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Section 7 - Handling
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. Keep container tightly closed. Avoid
contact with clothing and other combustible materials. Do not get on skin or in
eyes. Avoid ingestion and inhalation. Discard contaminated shoes.
Storage: Keep away from heat, sparks, and flame. Do not
store near combustible materials. Keep container closed when not in use. Store
in a cool, dry, well-ventilated area away from incompatible substances.
Section 8 - Exposure
Controls, Personal Protection
Controls: Facilities storing or utilizing this material should be
equipped with an eyewash facility and a safety shower. Use adequate ventilation
to keep airborne concentrations low.
||2 ppm TWA; 4 ppm STEL
||2 ppm TWA; 5 mg/m3 TWA 25 ppm IDLH
||2 ppm TWA; 5 mg/m3 TWA|
OSHA Vacated PELs: Nitric
acid: 2 ppm TWA; 5 mg/m3 TWA; 4 ppm STEL; 10 mg/m3 STEL Water: No OSHA Vacated
PELs are listed for this chemical.
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 gloves to prevent skin exposure.
Clothing: Wear a chemical apron. 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
Appearance: clear to yellow
Odor: strong odor -
Vapor Pressure: 6.8 mm Hg
Density: Not available.
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: 122 deg C
Freezing/Melting Point:-42 deg C
Flash Point: Not available.
NFPA Rating: (estimated) Health: 3;
Flammability: 0; Reactivity: 1
Explosion Limits, Lower:Not available.
Upper: Not available.
Section 10 -
Stability and Reactivity
Stability: Stable. Decomposes when in contact with air, light, or organic
Conditions to Avoid: High temperatures, incompatible
materials, ignition sources, dust generation, moisture, combustible materials,
Incompatibilities with Other Materials: Reducing
agents, acids (organic, e.g. acetic acid, benzoic acid, formic acid, methanoic
acid, oxalic acid), alcohols and glycols (e.g. butyl alcohol, ethanol, methanol,
ethylene glycol), aldehydes (e.g. acetaldehyde, acrolein, chloral hydrate,
formaldehyde), amides (e.g. butyramide, diethyltoluamide, dimethyl formamide),
amines (aliphatic and aromatic, e.g. dimethyl amine, propylamine, pyridine,
triethylamine), azo, diazo, and hydrazines (e.g. dimethyl hydrazine, hydrazine,
methyl hydrazine), carbamates (e.g. carbanolate, carbofuran), caustics (e.g.
ammonia, ammonium hydroxide, calcium hydroxide, potassium hydroxide, sodium
hydroxide), cyanides (e.g. potassium cyanide, sodium cyanide), dithiocarbamates
(e.g. ferbam, maneb, metham, thiram), esters (e.g. butyl acetate, ethyl acetate,
propyl formate), ethers (e.g. dioxane, furfuran, tetrahydrofuran (THF)),
fluorides (inorganic, e.g. ammonium fluoride, calcium fluoride, cesium
fluoride), hydrocarbons (aromatic, e.g. benzene, chrysene, cumen.
Hazardous Decomposition Products: Nitrogen oxides.
Polymerization: Has not been reported.
Section 11 -
CAS# 7697-37-2: QU5775000; QU5900000
Inhalation, rat: LC50 = 67
Oral, rat: LD50 = >90
CAS# 7697-37-2: Not listed by
ACGIH, IARC, NIOSH, NTP, or OSHA. CAS# 7732-18-5: Not listed by ACGIH, IARC,
NIOSH, NTP, or OSHA.
Epidemiology: No information found.
Teratogenicity: No information found.
Effects: No information found.
Neurotoxicity: No information
Mutagenicity: No information found.
See actual entry in RTECS for complete information.
Section 12 -
data available. No information available.
During transport through the soil, nitric acid will dissolve some of the soil
material, in particular, the carbonate based materials. The acid will be
neutralized to some degree with adsorption of the proton also occurring on clay
materials. However, significant amounts of acid are expected to remain for
transport down toward the ground water table. Upon reaching the ground water
table, the acid will continue to move, now in the direction of the ground water
Physical: Not expected to biodegrade or bioconcentrate.
Other: For more information, see "HANDBOOK OF ENVIRONMENTAL FATE AND
Section 13 - Disposal
Chemical waste generators
must determine whether a discarded chemical is classified as a hazardous waste.
US EPA guidelines for the classification determination are listed in 40 CFR
Parts 261.3. Additionally, waste generators must consult state and local
hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.
Section 14 -
Section 15 -
CAS# 7697-37-2 is listed on the TSCA
CAS# 7732-18-5 is listed on the TSCA inventory.
& Safety Reporting List
None of the chemicals are on the Health &
Safety Reporting List.
Chemical Test Rules
None of the chemicals
in this product are under a Chemical Test Rule.
of the chemicals are listed under TSCA Section 12b.
TSCA Significant New
None of the chemicals in this material have a SNUR under TSCA.
Section 302 (RQ)
CAS# 7697-37-2: final RQ =
1000 pounds (454 kg)
Section 302 (TPQ)
CAS# 7697-37-2: TPQ = 1000
pounds; RQ = 1000 pounds
CAS # 7697-37-2: acute,
This material contains Nitric acid
(CAS# 7697-37-2, 69 71%),which is subject to the reporting requirements of
Section 313 of SARA Title III and 40 CFR Part 373.
This material does not contain any hazardous air pollutants. This
material does not contain any Class 1 Ozone depletors. This material does not
contain any Class 2 Ozone depletors.
Clean Water Act:
7697-37-2 is listed as a Hazardous Substance under the CWA. None of the
chemicals in this product are listed as Priority Pollutants under the CWA. None
of the chemicals in this product are listed as Toxic Pollutants under the CWA.
CAS# 7697-37-2 is considered highly hazardous by OSHA.
CAS# 7697-37-2 can be found on the following state right to
know lists: California, New Jersey, Florida, Pennsylvania, Minnesota,
CAS# 7732-18-5 is not present on state lists from CA, PA, MN,
MA, FL, or NJ.
California No Significant Risk Level: None of the chemicals
in this product are listed. European/International
European Labeling in Accordance with EC
Causes severe burns.
R 8 Contact with combustible material may cause
S 26 In case of contact with eyes,
with plenty of water and seek medical advice.
Wear suitable protective clothing.
S 45 In case of accident or if you feel
medical advice immediately (show the label where
S23B Do not breathe fumes.
CAS# 7697-37-2: 1
CAS# 7732-18-5: No information
CAS# 7697-37-2 is listed on Canada's DSL List.
CAS# 7697-37-2 is listed on Canada's DSL List. CAS# 7732-18-5 is listed on
Canada's DSL List. CAS# 7732-18-5 is listed on Canada's DSL List.
product has a WHMIS classification of C, D1A, E.
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.
7697-37-2: OEL-ARAB Republic of Egypt:TWA 2 ppm (5 mg/m3) OEL-
2 ppm (5 mg/m3);STEL 4 ppm (10 mg/m3) OEL-BELGIUM:TWA 2
ppm (5.2 mg/m3);STEL
4 ppm (10 mg/m3) OEL-CZECHOSLOVAKIA:TWA 2.5 mg/
m3;STEL 5 mg/m3
OEL-DENMARK:TWA 2 ppm (5 mg/m3) OEL-FINLAND:TWA 2 pp
m (5 mg/m3);STEL 5 ppm
(13 mg/m3);Skin OEL-FRANCE:TWA 2 ppm (5 mg/m3)
;STEL 4 ppm (10 mg/m3)
OEL-GERMANY:TWA 10 ppm (25 mg/m3) OEL-HUNGARY
:STEL 5 mg/m3 OEL-JAPAN:TWA 2
ppm (5.2 mg/m3) OEL-THE PHILIPPINES:TW
A 2 ppm (5 mg/m3) OEL-POLAND:TWA 10
mg/m3 OEL-RUSSIA:TWA 2 ppm;STEL
2 mg/m3;Skin OEL-SWEDEN:TWA 2 ppm (5
mg/m3);STEL 5 ppm (13 mg/m3) OE
L-SWITZERLAND:TWA 2 ppm (5 mg/m3);STEL 4 ppm
(1 mg/m3) OEL-THAILAND:T
WA 2 ppm (5 mg/m3) OEL-TURKEY:TWA 2 ppm (5 mg/m3)
:TWA 2 ppm (5 mg/m3);STEL 4 ppm (10 mg/m3) OEL IN
JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND,
check ACGI TLV
Section 16 -
MSDS Creation Date:
Revision #4 Date: 12/06/2001
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
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