Nitric Acid

CAS Number: 7697-37-2

Also known as: Hydrogen Nitrate, Aqua Fortis, Nitric Acid, Acide Nitrique
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

CAS number 7697-37-2
Formula HNO3

Physical chemical data

Physical State (25°C) Liquid
Molar mass (g/mol) 63.012
Solubility (g/L)
10000000 [g/L] at a temperature of 20°C and salinity of 0‰
Boiling Point (°C) 83
Melting Point (°C) -41.6
Vapor enthalpy (J/Kg)
620517 [J/Kg] at a temperature of 25°C
Specific heat capacity (J/(Kg·K)) 1744

Behaviour at sea

Log kow 0.21
Log koc 1.21

Additional data

MARPOL pollution category
Category Description
Y Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a hazard to either marine resources or human health or cause harm to amenities or other legitimate uses of the sea and therefore justify a limitation on the quality and quantity of the discharge into the marine environment.

Transportation data

Reactivity data

Abilities Miscible in water.

GESAMP Hazard profile

Bioaccumulation in logPow (A1A) 0 - e <1, or > ca.7, or Mol. Wt. > 1000
Bioaccumulation (A1) 0 - No potential to bioaccumulate
Biodegradation (A2) R - Readily biodegradable
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l)) 2 - Slightly toxic
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg)) 1 - Slight
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg)) 0 - Negligible
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l)) 2 - Moderate
Skin irritation/corrosivity (D1) 1 - Mildly irritating
Eye irritation/corrosivity (D2) 1 - Mildly irritating
Interference with coastal amenities (E2) ED - Evaporator/Dissolver
Effects on wildlife and bottom habitats (E3) 3 - Is highly acutely toxic; and/or is severely irritant or corrosive to skin or eyes; and/or is carcinogenic, mutagenic or reprotoxic; and/or is a floater or persistent floater with associated health effects

Human toxicity threshold

Corrosive Oxidizing
Hazard statements
Physical
H272 May intensify fire, oxidiser.
H290 May be corrosive to metals.
Health
H314 Causes severe skin burns and eye damage.
Precautionary statements
Prevention
P210 Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P220 Keep/Store away from clothing/.../combustible materials.
P221 Take any precaution to avoid mixing with combustibles...
P234 Keep only in original container.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Response
P303 + P361 + P353 IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P304 + P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P310 Immediately call a POISON CENTER or doctor/physician.
P363 Wash contaminated clothing before reuse.
P390 Absorb spillage to prevent material damage.
Storage
P404 Store in a closed container.
P406 Store in corrosive resistant/... container with a resistant inner liner.
Disposal
P501 Dispose of contents/container to ...

Ecotoxicity

Lowest median lethal concentration (LC50) on crustacean (mg/l) 180
Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

No guides available

At sea emergency guide

At sea emergency guide

No guides available

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-11T09:57:24+00:00