AMMONIUM SULPHIDE solution (45% or less)

UN Number: 2683 - CAS Number: 12124-99-1

Also known as: AMMONIUM HYDROGEN SULPHIDE SOLUTION, AMMONIUM MONOSULFIDE, AMMONIUM SULFHYDRATE, DIAMMONIUM SULPHIDE

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number	2683
CAS number	12124-99-1

Physical chemical data

Physical State (20°C)

Liquid

Density (kg/m3)

990/1010 [Kg/m³] at a temperature of 20°C

Molar mass (g/mol)

68.14

Boiling Point (°C)

38/100

Melting Point (°C)

-18

Vapour Pressure (Pa)

2000 [Pa] at a temperature of 20°C

Flash Point (°C)

Upper explosivity limit (UEL) (volume %)

Behaviour at sea

Additional data

Colour	greenich to yellow
Odour	ammonia-like

Transportation data

Transport mode	Bulk,Packaged
Package group	II
State	liquid
Temperature (°C)	ambient

Reactivity data

Water	No
Acid(s)	Yes
Metal(s) and alloys	Yes (Cu, Zn)

GESAMP Hazard profile

Bioaccumulation in BCF (A1B)	0 - No measurable BCF
Bioaccumulation (A1)	0 - No potential to bioaccumulate
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l))	3 - Moderately 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
Eye irritation/corrosivity (D2)	2 - Irritating
Interference with coastal amenities (E2)	D - Dissolver
Effects on wildlife and bottom habitats (E3)	2 - Is a persistent floater; and/or is moderately acutely toxic; and/or is irritating to skin and/or eyes; and/or has long-term health effects other than carcinogenicity, mutagenicity or reprotoxicity; and/or is highly flammable; and/or is flammable and is a floater with evaporative properties

Human toxicity threshold

TEEL-1 (mg/m3)	10 ppm
TEEL-2 (mg/m3)	15 ppm
TEEL-3 (mg/m3)	15 ppm

Ecotoxicity

Incident reports

No incident reports available

Emergency Response Guidebook

Guide number: 132

See the guide or download the emergency response guidebook

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

No decision trees available

No additional data