Sodium sulfide
　　Other name： Sodium monosulfide; Sodium sulfide (Na2S); sodium sulfuret; Sodium Sulphide; Disodium monosulfide; Disodium sulfide; disodiummonosulfide; disodiumsulfide; Hesthsulphid; Na2-S; disodium sulfanide; sodium sulfidosodium
　　CAS No.: 1313-82-2
　　EINECS No.: 215-211-5
　　UN No.: 1849   1385            
　　CN No.: 82011  42009
　　HS No.: 2830101000
　　Molecular Formula: Na₂S
　　Molecular weight：78.0445
　　Property: Soluble water, presenting strong alkaline solution, easily oxidized when exposed to air, poison
　　1. Appearance: yellow or reddish brown lump, flake and granular.
　　2. Specifications:
　　2.1. Sodium sulfide industry grade classification:
　　Ⅰ: low iron sodium sulfide (Yellow base);
　　Ⅱ: ordinary sodium sulfide ( Red base).
　　2.2.Quality standards：GB/T10500-2009

Index Item	Ⅰ			Ⅱ
	Superior product	First grade	Qualified product	Superior product	First grade
Sodium sulfide (Na2S)，wt% ≥	60.0	60.0	60.0	60.0	60.0
Sodium sulfite (Na2SO3)，wt % ≤	1.0	-	-	-	-
Sodium thiosulfate (Na2S2O3)，wt % ≤	2.5	-	-	-	-
Iron（Fe）, wt%≤	0.0020	0.0030	0.0050	0.015	0.030
Water insolubles, wt%≤	0.05	0.05	0.05	0.15	0.20
Sodium carbonate (Na2CO3)，wt % ≤	2.0	-	-	3.5	-

　　3. Packaging: Net 25 kg in plastic lined woven bag, can also package according to customer request
　　4. Uses: used as making sulphur dyestuff intermediate reducer, mordant, flotation agent, depilatory for leather, digestion auxiliary in paper-making also widely used in pigment and rubber industry, etc.
　　5. Storage: Stored in a cool, dry, prevent to be affected with damp be affected with damp. Transportation should prevent the rain. Don't with acids during storage. When loading and unloading to should take put down gently to prevent damaged packaging.
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