Material Safety Data
Nitric acid, 20-70%
Section 1 - Chemical Product and Company
MSDS Name: Nitric acid, 20-70%
Catalog Numbers: AC124660010, AC124660025, AC124665000,
AC133620010, AC133620025, AC424000025, AC424000250, AC424005000, AC613205000,
S71972, S719721, S71972MF, S71972SC, S756232, S76523, S93314, S93315, A198C-212,
A198C4X-212, A200-212, A200-500, A200-612GAL, A200212LC, A200C-212, A200C212EA,
A200C212LC, A200C4X-212, A200C4X212L, A200S-212, A200S-500, A200SI-212,
A206C-212, A206C4X-212, A467-1, A467-2, A467-250, A467-500, A483-212, A509-212,
A509-212LC, A509-500, A509SK-212, A509SK-212LC, M-281, MCC-030822
Synonyms: Azotic acid; Engraver's acid; Aqua fortis.
Fair Lawn, NJ 07410
For information, call: 201-796-7100
For CHEMTREC assistance, call: 800-424-9300
International CHEMTREC assistance, call: 703-527-3887
Section 2 -
Composition, Information on Ingredients
Section 3 - Hazards
Appearance: clear to yellow liquid.
Danger! May be fatal
if inhaled. Causes severe eye and skin burns. Causes severe respiratory and
digestive tract burns. Strong oxidizer. Contact with other material may cause a
fire. Acute pulmonary edema or chronic obstructive lung disease may occur from
inhalation of the vapors of nitric acid. Corrosive to metal.
Organs: Lungs, eyes, skin, mucous membranes.
Potential Health Effects
Eye: Causes severe eye burns. Direct contact with
liquid may cause blindness or permanent eye damage.
Causes skin burns. May cause deep, penetrating ulcers of the skin. Concentrated
nitric acid dyes human skin yellow on contact.
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. Depending on the
conditions, the vapor or fumes of nitric acid may actually be a mixture of
nitric acid and various oxides of nitrogen. The composition may vary with
temperature, humidity, and contact with other organic materials.
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
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
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
Notes to Physician: Treat symptomatically and
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 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
Extinguishing Media: Use extinguishing media most
appropriate for the surrounding fire.
Flash Point: Not applicable.
Autoignition Temperature: Not available.
Upper: Not available.
Rating: (estimated) Health: 4; Flammability: 0; Instability: 0; Special
Section 6 -
Accidental Release Measures
Information: Use proper personal protective equipment as indicated in
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
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
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.
||none listed |
||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: Water: No OSHA
Vacated PELs are listed for this chemical. Nitric acid: 2 ppm TWA; 5 mg/m3 TWA
Personal Protective Equipment
Wear chemical goggles and face shield.
appropriate gloves to prevent skin exposure.
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 -
acrid odor - suffocating odor
pH: 1.0 (0.1M soln)
Pressure: 7.1 mm Hg @ 20 deg C (70% acid)
Vapor Density: 2.17
Evaporation Rate:Not available.
cps @ 25 deg C
Boiling Point: 86 deg C
Point:-42 deg C
Decomposition Temperature:Not available.
Solubility: Soluble in water.
Section 10 -
Stability and Reactivity
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
Conditions to Avoid: High temperatures, light, confined
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
Hazardous Decomposition Products: Nitrogen oxides.
Hazardous Polymerization: Has not been reported.
Section 11 -
CAS# 7732-18-5: ZC0110000
CAS# 7697-37-2: QU5775000; QU5900000
rat: LD50 = >90 mL/kg;
Inhalation, rat: LC50 = 260
Inhalation, rat: LC50 = 130
Inhalation, rat: LC50 = 67
CAS# 7732-18-5: Not listed
by ACGIH, IARC, NTP, or CA Prop 65.
CAS# 7697-37-2: Not listed by ACGIH,
IARC, NTP, or CA Prop 65.
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: No information available.
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 -
7732-18-5 is listed on the TSCA inventory.
CAS# 7697-37-2 is listed on the TSCA
Health & Safety Reporting
None of the chemicals are on the
Health & Safety Reporting List.
None of the chemicals in this product
are under a Chemical Test Rule.
None of the chemicals are listed under
TSCA Section 12b.
TSCA Significant New Use
None of the chemicals in this material
have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding
CAS# 7697-37-2: 1000 lb final RQ; 454
kg final RQ
SARA Section 302 Extremely Hazardous
CAS# 7697-37-2: 1000 lb TPQ
CAS # 7697-37-2: acute,
This material contains Nitric acid (CAS#
7697-37-2, 20-70%),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.
material does not contain any Class 2 Ozone depletors.
CAS# 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.
7732-18-5 is not present on state lists from CA, PA, MN, MA, FL, or NJ.
CAS# 7697-37-2 can be found on the following
state right to know lists: California, New Jersey, Pennsylvania, Minnesota,
California Prop 65
Significant Risk Level: None of the chemicals in this product are listed.
Labeling in Accordance with EC Directives
R 35 Causes severe burns.
S 23 Do not
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
the label where possible).
CAS# 7732-18-5: No
CAS# 7697-37-2: 1
Canada - DSL/NDSL
CAS# 7732-18-5 is
listed on Canada's DSL List.
CAS# 7697-37-2 is
listed on Canada's DSL List.
This product has a WHMIS
classification of E, C, D1A.
Canadian Ingredient Disclosure
CAS# 7697-37-2 is listed on the
Canadian Ingredient Disclosure List.
Section 16 -
MSDS Creation Date:
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 event
shall Fisher 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 Fisher has been advised of the
possibility of such damages.