Nitric acid

CAS 7697-37-2 HNO₃ MW 63.0000 Danger
Flame Over Circle Flame Over Circle
Corrosion Corrosion
Skull and Crossbones Skull and Crossbones
Health Hazard Health Hazard
Emergency: 911 | Poison Control: 1-800-222-1222

Safety Data Sheets

ManufacturerDownload
Acros Organics Download PDF
Alfa Aesar Download PDF
Sigma Aldrich Download PDF

Hazard Statements

CodeStatementHazard Class
H272 May intensify fire; oxidizer Oxidizing liquids; Oxidizing solids
H290 May be corrosive to metals Corrosive to Metals
H314 Causes severe skin burns and eye damage Skin corrosion/irritation
H318 Causes serious eye damage Serious eye damage/eye irritation
H330 Fatal if inhaled Acute toxicity, inhalation
H370 Causes damage to organs Specific target organ toxicity, single exposure
H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure
H402 Harmful to aquatic life Hazardous to the aquatic environment, acute hazard

Precautionary Statements

CodeStatement
P210 Keep away from heat, hot surface, sparks, open flames and other ignition sources. No smoking.
P220 Keep away from clothing and other combustible materials.
P234 Keep only in original container.
P260 Do not breathe dust/fume/gas/mist/vapors/spray.
P264 Wash hands [and ...] thoroughly after handling.
P264+P265 Wash hands [and ...] thoroughly after handling. Do not touch eyes.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P284 [In case of inadequate ventilation] Wear respiratory protection.
P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302+P361+P354 IF ON SKIN: Take off Immediately all contaminated clothing. Immediately rinse with water for several minutes.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
P308+P316 IF exposed or concerned: Get emergency medical help immediately.
P316 Get emergency medical help immediately.
P317 Get emergency medical help.
P319 Get medical help if you feel unwell.
P320 Specific treatment is urgent (see ... on this label).
P321 Specific treatment (see information on this label and safety datasheet)).
P363 Wash contaminated clothing before reuse.
P370+P378 In case of fire: Use ... to extinguish.
P390 Absorb spillage to prevent material damage.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P406 Store in corrosive resistant/... container with a resistant inner liner.
P501 Dispose of contents/container to ...

Exposure Limits

OSHA PEL2 ppm
NIOSH REL2 ppm
NIOSH STEL4 ppm
NIOSH IDLH25 ppm
Skin NotationYes — can be absorbed through skin

Physical Properties

Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor.

Boiling Point181°F
Vapor Pressure48 mmHg
Specific Gravity1.5

NFPA 704 Diamond

0
4
-
Health Fire Reactivity

Target Organs

Lungs

dental erosion, nasal and lung irritation

Synonyms

aqua fortis; spirit of niter; engravers acid; white fuming nitric acid (WFNA); red fuming nitric acid (RFNA); hydrogen nitrate

Data Sources

Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.

See something wrong? Report a data issue.