- Organic Acid[1]
- Organic Salt[1]
- Chemical Auxiliary Agent[4]
- Food Additives[10]
- Alkali[1]
- Inorganic Acids[5]
- Carbonate[9]
- Chloride[5]
- Nitrate[1]
- Other Inorganic Salts[2]
- Silicate[2]
- Sulfide[3]
- Sulphate[7]
- Other Inorganic Chemicals[3]
- Oxide[5]
- Other Chemicals[1]
- Metal Building Materials[1]
- Other Energy Related Products[5]
- Abrasives[4]
- Ceramics[2]
- Graphite Powder[10]
- Other Graphite Products[3]
- Other Non-Metallic Mineral Deposit[1]
- Talc[1]
- Other Metals & Metal Products[3]
- Other Non-Metallic Minerals & Products[9]
- Refractory[10]
sodium hydrosulfide
1).CAS No.:16721-80-5
2).Content:70%Min
3).Degreed: flake ,solid
4).ISO9001:2008Quality Management System Certification
Synonyms: sodium hydrogen sulphide, sodium hydrogen sulfide, sodium sulfhydrate, sodium bisulphide, sodium hydrosulphide, sodium bisulfide
Secification:
Item | Standard | |
Content, % ≥: | 72 | 70 |
Sodium sulphide,% ≤: | 2 | 3 |
Sodium sulphite,%≤: | 1 | 1.5 |
Ferrum,% ≤: | 0.003 | 0.003 |
Sodium carbonate,% ≤: | 0.6 | 1 |
Water insolubles,%≤: | 0.005 | 0.005 |
Packing: in woven bag with plastic lining(net weight is 25kg/bag); in woven bag with plastic lining(net weight is 900/kg or 1000kg/bag) ;in metal or plastic drum (200kg/plastic or metal drum).
Property :Colorless perpendicular crystal with deliquescence;unstalbe,and will melt into black liquid at about 350oC,soluble in water or alcohol,its water solution is strongly alkaline,pure NaHS can be dissolved in Hcl and become clear solution and generate H2S.
Use:To produce ammonium sulphate and pesticide ethanethiol,the beneficiation of copper ore,tanning,depilation and tanning;to get rid of the free sulfur inactive carbon desulfurizer; also used in sulfurous acid dyeing.
