Sodium Sulfide

Chemical Name: Sodium Sulfide
Molecular Formula: Na₂S
Molecular Weight: 78.04
CAS No. : 1313-82-2
Standard Executed: GB/T 10500-2009

Appearance
Yellow or reddish brown lumps, flakes and granules

Application
• Widely used in printing and dyeing, metallurgy, leather, chemical industry, paper making, textile and many other fields.

Packing
• Net weight：25，50，150kg；
• PP woven bag, paper-plastic composite bag or iron drum, with PE bag.

Specification

Item	Standard
Item	Class Ⅰ (low iron) (Yellow Alkali)	Class II (General) (Red Alkali)
Sodium sulfide (Na₂S) ω/% ≥	60.0	60.0
Sodium sulfite (Na₂SO₃) ω/% ≤	1.0	---
Sodium thiosulfate (Na₂S₂O₃) ω/% ≤	2.5	---
Iron (Fe) ω/% ≤	0.0020	0.015
Water insoluble matter ω/% ≤	0.05	0.15
Sodium carbonate (Na₂CO₃) ω/% ≤	2.0	3.5