AMMONIA aqueous solution (28% or less)

UN Number: 2672 - CAS Number: 7664-41-7

Also known as: AMMONIA LIQUOR, AMMONIAQUE solution aqueuse (< 28%), AMMONIA WATER, AMMONIUM HYDROXIDE, AQUA AMMONIA, Ammonia Aqueous, Ammonia Solution, Ammonia Monohydrate, Ammonium Monohydrate, Aqueous Ammonia, Ammonium Hydroxide ((Nh4)(Oh)), Ammonia, Aqueous Solution, Ammoniac Water, Ammonium Hydroxide (25%), Ammoniaque (25%)
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number 2672
CAS number 7664-41-7
Formula NH5O

Physical chemical data

Physical State (20°C) Liquid
Physical State (25°C) Liquid
Density (kg/m3)
900 [Kg/m³] at a temperature of 20°C
Molar mass (g/mol) 35.05
Density of gas (kg/m3) 0.77
Solubility (g/L)
305000 [g/L] at a temperature of 20°C and salinity of 0‰
280000 [g/L] at a temperature of 25°C and salinity of 0‰
Boiling Point (°C) 36
Melting Point (°C) -97
Surface tension (mN/m)
23.4 [mN/m] at a temperature of 20°C
18.1 [mN/m] at a temperature of 25°C
Vapour Pressure (Pa)
30000 [Pa] at a temperature of 20°C
47400 [Pa] at a temperature of 21.1°C
Ignition Temperature (°C) > 600
Lower explosivity limit (LEL) (volume %) 16
Upper explosivity limit (UEL) (volume %) 25

Behaviour at sea

Log kow -0.17
Log koc 1.16
Aqueous photolysis (Half-life) Not photolysable
Biodegradation in estuary environment (Half-life) (days) Not hydrolysable
Biodegradation in marine environment (Half-life) (days) 10

Additional data

Colour colourless
Odour odourless
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.
Standard behavior classification DE

Transportation data

Transport mode Bulk,Packaged
Package group III
State liquid
Family name ammonia

Reactivity data

Water No
Abilities Solution.
Acid(s) Yes
Base(s) Yes
Metal(s) and alloys Yes
Oxidizing agents Yes
Combustibles Yes
Organic substance Yes
Notable risks Reacts with oxides and peroxides.

GESAMP Hazard profile

Bioaccumulation in logPow (A1A) 0 - e <1, or > ca.7, or Mol. Wt. > 1000
Bioaccumulation in BCF (A1B) 0 - No measurable BCF
Bioaccumulation (A1) 0 - No potential to bioaccumulate
Biodegradation (A2) R - Readily biodegradable
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l)) 3 - Moderately toxic
Chronic aquatic toxicity (B2) (NOEC (mg/l)) 2 - Moderate
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg)) 1 - Slight
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg)) 2 - Moderate
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l)) 3 - Moderately high
Eye irritation/corrosivity (D2) 3 - Severely irritating, with irreversible corneal injury
Interference with coastal amenities (E2) DE - Dissolver/Evaporator
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 Environmental Hazard Harmful
IDHL 300
Hazard statements
Health
H314 Causes severe skin burns and eye damage.
H335 May cause respiratory irritation.
Environmental
H400 Very toxic to aquatic life.
Precautionary statements
Prevention
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Response
P301 + P330 + P331 IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P391 Collect spillage.
Disposal
P501 Dispose of contents/container to ...
TLV-TWA 25
TEEL-1 (mg/m3) 6 ppm
TEEL-2 (mg/m3) 40 ppm
TEEL-3 (mg/m3) 100 ppm

Ecotoxicity

Lowest median lethal concentration (LC50) on algae (mg/l) 1300
Lowest median lethal concentration (LC50) on crustacean (mg/l) 9
Lowest median lethal concentration (LC50) on fishes (mg/l) 2.4
Highest no observed effect concentration (NOEC) on algae (mg/l) 0.234
Highest no observed effect concentration (NOEC) on crustacean (mg/l) 2
Highest no observed effect concentration (NOEC) on fishes (mg/l) 0.06
Assessment factor (AF)
1000 on the Short term
100 on the Long term
Predicted No Effect Concentration (PNEC) (µg/l)
2.4 [µg/l] on the Short term
0.6 [µg/l] on the Long term
Incident reports

Incident reports

Year Vessel Location Cargo type
1977 Storage Tank Massie Creek, USA Bulk
Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 154

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

Emergency schedule: 8-06

CORROSIVE SUBSTANCES, NON-COMBUSTIBLE.

Emergency procedures

Spillage on deck

Use of water on substance may cause violent reaction. Wash overboard with copious quantities of water from as far away as practicable.

Spillage under deck

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

Fire on deck

If possible remove receptacles likely to be involved or keep them cool with water.

Fire under deck

Adopt action as for "On deck".

Special equipment to be carried

Protective clothing (gloves, boots, coveralls, headgear).
Self-contained breathing apparatus.
Inert absorbent material (e.g. diatomaceous earth)
Spray nozzles.

Remarks by UN no.

• ALUMINIUM BROMIDE, ANHYDROUS (UN No. 1725)
• ALUMINIUM CHLORIDE, ANHYDROUS (UN No. 1726)
• HYDROGENDIFLUORIDES, N.O.S. (UN No. 1740)
• DIFLUOROPHOSPHORIC ACID, ANHYDROUS (UN No. 1768)
• FLUOROBORIC ACID (UN No. 1775)
• FLUOROPHOSPHORIC ACID, ANHYDROUS (UN No. 1776)
• FLUOROSILICIC ACID (UN No. 1778)
• HEXAFLUOROPHOSPHORIC ACID (UN No. 1782)
• SULPHUR TRIOXIDE, INHIBITED (UN No. 1829)
• SULPHURIC ACID, FUMING (UN No. 1831)
• ZINC CHLORIDE, ANHYDROUS (UN No. 2331)
• VANADIUM TRICHLORIDE (UN No. 2475)
• ZIRCONIUM TETRACHLORIDE (UN No. 2503)
• CYANURIC CHLORIDE (UN No. 2670)
• AMMONIA SOLUTION (UN No. 2672), with more than 10% but not more than 35%
ammonia, by mass.
• PHOSPHORUS PENTABROMIDE (UN No. 2691)
Turn ship off-wind.

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-14T09:02:03+00:00

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