Sodium Sulfide

Synonym(s)

: Sodium monosulfide, disodium sulfide, sodium sulfide gruel

Mol. Formula

: Na2S

EC / List no.

: 215-211-5

CAS no.

: 1313-82-2

Molecular weight

: 79,06

Sodium sulfide is an anhydrous, yellow to brick red crystalline mass or solid fused with the odor of rotten eggs. If exposed to moist air, it is prone to self-heating and may ignite nearby combustible materials. It absorbs moisture from the air.

Application

» This substance is used in the following products: pH regulators and water treatment products and water treatment chemicals.
» This substance is used in: mining and municipal supply (eg electricity, steam, gas, water) and sewage treatment.
» This substance is used in the manufacture of textiles, leather or fur.
» Other releases of this substance into the environment are likely to occur: indoor use.

Product Specifications

Physical and Chemical Properties
» Sodium sulfide is a yellow to brick red crystalline solid.
» It has the smell of rotten eggs.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	69- 600	99.7 kPa
Density	g/ cm³	1.64	21.1 °C
Solubility	g/L	178	20 °C, soluble with water
Melting point		-3.5