sodium sulphide (alkali sulphide)

Physical and chemical properties: pure anhydrous sodium sulfide of white or cubic crystalline particles. Is extremely moisture absorption in the air and easy to change and instability. The relative density of 1.856 (14 degrees Celsius), the melting point of 1180 degrees Celsius. Soluble in water (10 degrees Celsius when the water solubility of 15.4 g/100ml, at 90 degrees Celsius to 57.2 g/100ml water solubility), with alkaline solution. Micro-soluble alcohol, do not dissolve in ether.Dissolution was strongly alkaline water, touched the skin and hair will cause burns, is also known as sodium sulfide. Insoluble sulfur generate more sodium sulfide. Sodium sulfide are corrosive, toxic, in the air-generation of sodium thiosulfate. Sodium sulfide in the air deliquescence, and carbonated and eradicating corruption, the release of hydrogen sulfide gas. Industrial sodium sulfide containing impurities because of its color was pink, red and brown, Tuhuang color. Its proportion, melting point, boiling point, because the contaminants may vary.
Use:
In the industrial dye used in the production of Sulfur Dyes, is curing the Green and Blue curing of raw materials;
Printing and dyeing industry for the dissolution Sulfur Dyes help agent;
In the leather industry for the Paper Hydrolytic to shed health, but also for the preparation of sodium sulfide more water to help speed up the dry skin soft;
Paper Industry paper used for the cooking;
Man-made fibres used in the textile industry and nitrification of NOx reduction, and cotton fabric dyeing mordant;
In the pharmaceutical industry for the production of non-antipyretic drugs such as phenacetin;
In addition the system can also be used sodium thiosulfate, the more sodium sulfide, sulfur, such as sodium hydride.
Production methods: (pulverized coal reduction) of sodium in the mixer and add mixture of pulverized coal converter, a reduction in high temperature reaction, the reaction from the rough alkali leaching filtration, evaporation is a producer after.
Packaging: 25 kg Subian bag, a plastic lining, in most of the Plastic Bag

No. Product Target 01 1500PPM Alkali Sulphide   02 Na2S(%) 60.0Min 03 Na2CO3(%) 5.0Max 04 Water Insoluble(%) 0.4max 05 Fe(%) 0.15max

Low Iron Alkali Sulphide

No. Product Target 01 150PPM Low Iron Alkali Sulphide   02 Na2S(%) 60.0Min 03 Na2CO3(%) 2.0Max 04 Water Insoluble(%) 0.2max 05 Fe(%) 0.015max 06 80PPM/50PPM Low Iron Alkali Sulphide   07 Na2S(%) 60.0Min 08 N 2CO3 (%) 2.0Max 09 Water Insoluble(%) 0.2max 10 Fe(%) 0.008max 0.005max 11 30PPM/20PPM Low Iron Alkali Sulphide   12 Na2S(%) 60.0 13 Na2CO3(%) 2.0Max 14 Water Insoluble(%) 0.05max/0.03max 15 Fe(%) 0.003max 0.002max