CAS number : 1313-84-4
Molecular weight : 240.18
Molecular formula/chemical symbol :Na2S.9H2O
Description :
Pale yellow flakes. Hydrogen sulfide odor. With deliquescence. See the light and become yellow to brownish-black in the air, and gradually produce hydrogen sulfide, the formation of carbonate and polysulfides, soluble in water, the case of the acid can also break down even carbonated, slightly soluble in ethanol, insoluble in ether. The aqueous solution is alkaline, becoming sulfide sodium sulfate and sodium hydroxide solution when exposed in the air. Flammable. Corrosive.
USES :
The titration analysis cadmium. Mineral flotation. Nitrogen fertilizer production in the analysis of the hardness of the water. Analysis of the ammonia liquid copper. Analysis of copper ammonia solution of ammonium bicarbonate. Metal purification. Electro-galvanized, cadmium. Analytical reagents, chromatography, photographic, mineral flotation, metal processing, curing agent, electro-galvanized and cadmium.
Keywords:Surface treatment chemicals
Report :
|
TEST ITEMS |
TEST RESULT |
|
|
|
(AR) |
(CP) |
|
Na2S·9H2O |
≥98.0 |
96.0 |
|
Clarity Test |
Qualified |
Qualified |
|
Water insoluble matter |
≤0.002 |
0.005 |
|
Ammonium salts (NH4) |
≤0.002 |
0.006 |
|
Iodine oxide (Na2S2O3.5H2O) |
≤0.5 |
0.1 |
