NITRIC ACID (all concentrations up 70% acid)

UN Number: 2031

Also known as: ACIDE NITRIQUE (contenant plus de 70% d'acide nitrique), AQUAFORTIS, AZOTIC ACID
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number 2031

Physical chemical data

Physical State (20°C) Liquid
Density (kg/m3)
1490 [Kg/m³] at a temperature of 20°C
Molar mass (g/mol) 63
Density of gas (kg/m3) 2.838
Boiling Point (°C) 121
Melting Point (°C) -42
Vapour Pressure (Pa)
6400 [Pa] at a temperature of 20°C

Behaviour at sea

Additional data

Colour colourless to light brown
Odour choking odour

Transportation data

Transport mode Bulk,Packaged
Package group II
State liquid
Temperature (°C) ambient
Pressure (Pa) ambient
Family name nitric acid

Reactivity data

Water No
Acid(s) Yes
Base(s) Yes
Metal(s) and alloys Yes
Oxidizing agents No
Reducing agents No
Combustibles No
Organic substance Yes

GESAMP Hazard profile

Bioaccumulation (A1) 0 - No potential to bioaccumulate
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l)) 2 - Slightly toxic
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg)) 3 - Moderately high
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg)) 3 - Moderately high
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l)) 4 - High
Eye irritation/corrosivity (D2) 3 - Severely irritating, with irreversible corneal injury
Interference with coastal amenities (E2) D - 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

IDHL 100
ERPG-3 (ppm) 78

Ecotoxicity

Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 157

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

Emergency schedule: 8-04

CORROSIVE SUBSTANCES, FLAMMABLE, FLASHPOINT 61°C Closed Cup OR BELOW.

Emergency procedures

Action

Avoid all sources of ignition (e.g. naked lights, unprotected light bulbs, electric handtools).

Spillage on deck

Wash overboard with copious quantities of water.

Spillage under deck

Collect spillage, where practicable, using absorbent material for liquids, for safe disposal.

Fire on deck

Use water spray.

Fire under deck

Batten down; use ship's fixed fire-fighting installation. Otherwise adopt action as for "On deck".

Special equipment to be carried

Protective clothing (gloves, boots, coveralls, headgear).
Self-contained breathing apparatus.
Spray nozzles.

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-14T09:02:44+00:00