Specification of Sodium Sulfide 

Product    

Sodium Sulfide       

CAS NO

1313-82-2

Molecular Formula

 Na2S

MOL WT.

78.04

PHYSICAL AND CHEMICAL PROPERTIES

Physical State

yellow to red flakes

Specific Gravity

1.86

Solubility in Water

Soluble (slightly soluble in alcohol)

pH   

Alkaline

Stability 

Stable under ordinary conditions.Oxidizes in air

Apperance

yellow flakes

Na2S 

60.0% min

Na2CO3

2.0% max

Na2SO3

2.0% max

Na2S2O3

2.0% max

Fe  

0.15% max (1500 ppm)

Water Insolubles 

0.5% max

Application  

It is a strong reducing agent and reacts with oxidants. It is primarily used in pulp and paper industry. It is used in   water treatment as an oxygen scavenger agent, in the  photographic industry to protect developer solutions from oxidation, in textile industry as a bleaching, as a   desulfurizing and as a dechlorinating agent and in leather   trade for the sulfitization of tanning extracts.

Packing

25 Kgs Bags