2011年7月19日星期二

Sodium Sulfide

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Sodium Sulfide
1. Sodium sulfide Red flake and Yellow flake
2. It is Colorless,
3. Leather industry, paper industry, dye indus

Name:
Sodium Sulfide
Characteristic:
Sodium sulfide is the name used to refer to the chemical compound Na2S but more commonly its hydrate Na2S. 9H2O. Both are colorless water-soluble salts that give strongly alkaline solutions. When exposed to moist air, Na2S and its hydrates emit hydrogen sulfide, which smells much like rotten eggs.

Like sodium hydroxide , sodium sulfide is strongly alkaline and can cause skin burns. Acids react with it to rapidly produce hydrogen sulfide, which is a toxic and foul-smelling gas.

Other name; Disodium sulfide

EC number: 215-211-5

Density: 1.856 g/cm3 (anhydrous)
1.58 g/cm3 (pentahydrate)
1.43 g/cm3 (nonohydrate)

Melting point: 1176 ° C (anhydrous)
100
° C (pentahydrate)
50
° C (nonhydrate)

Solubility: Insoluble in ether
slightly soluble in alcohol
Specification:
Item
Sodium Sulfide(Yellow flakes and Red flakes)
Synonym
Flake Alcali Sulphide
Dangous Mark
8
Appearance
Thin flakes, yellow, soluble water, presenting strong alkaline solution, easily oxidized when exposed to air, poison.




Specification
Sodium Sulphide Red flake:
1.                                Na2S: 60.0% min
2.                                Na2CO3: 5.0% max
3.                                Water Insoluble: 0.4% max
4.                                Fe: 0.15% max
Sodium Sulphide Yellow flake
1. Na2S: 60.0% min
2. Na2CO3: 2.0% max
3. Water Insoluble: 0.05% max
4. Fe: 0.003% max
Used:
Leather industry, paper industry, dye industry

Place of Origin:
Tianjin in China
Payment Terms:
L/C,T/T(Bank Transfer),
Minimum Order:
10 Ton
Supply Ability:
500,000 Ton per Year
Package:
25kgs plastic woven bags
Delivery Time:
within two weeks after receive payment
 Resource:

www.ecvv.com   is an innovative and comprehensive business portal in China, dedicated to saving costs for Chinese SMEs to find buyers and export to overseas markets.

<a href="http://www.ecvv.com">www.ecvv.com</a> is an innovative and comprehensive business portal in China, dedicated to saving costs for Chinese SMEs to find buyers and export to overseas markets.

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