2 appearance:big red flakes

3 specification

4 packing:25kg weaving bags with polytene bag inner

5 usage:

1)dye industry for the production of sulfur, hydrogen sulfide and sulfide blue material;

2) dissolved sulfur dyeing industry as a co-agent;

3 )tanning industry for the hydrolysis of rawhide hair removal, but also for the preparation of polysulfide to accelerate the soaking of dry skin soft. Paper and paper industry as a cooking agent;

4 )rayon denitration for the textile industry and the reduction of nitro compounds, as well as cotton fabric dyeing mordant;

5 )pharmaceutical industry for the production of antipyretic drugs such as phenacetin. In addition, for the system sodium thiosulfate, sodium hydrosulfide, sodium sulfide and more.

Sodium sulfide is the chemical compound with the formula Na2S, or 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 like rotten eggs. Some commercial samples are specified as Na2S·xH2O, where a weight percentage of Na2S is specified. Commonly available grades have around 60% Na2S by weight. Such technical grades of sodium sulfide have a yellow appearance owing to the presence of polysulfides. These grades of sodium sulfide are marketed as 'sodium sulfide flakes'. Although the solid is yellow, solutions of it are colorless.

Yellow Flakes