PRODUCT NAME:SELENIUM SULFIDE
CAS NO.:7488-56-4 EINECS:231-303-8 MOLECULAR WEIGHT:143.09 DENSITY:2.442[AT 20ºC] BOILING POINT:DECOMPOSES [STR93] MELTING POINT:100 °C STORAGE TEMPERATURE:STORE BELOW +30°C. SOLUBILITY:PRACTICALLY INSOLUBLE IN WATER. APPEARANCE:ORANGE POWDER PURITY: ≥98% PACKAGING:ACCORDING TO CUSTOMER REQUESTS COUNTRY OF ORIGIN:CHINA |
Selenium Sulfide is an inorganic compound with the approximate formula SeS2. Both sulfur and selenium catenate (form chains and rings) readily, and mixtures of selenium and sulfur likewise give rise to numerous "alloys". This compound is not an analogue of sulfur dioxide. Selenium disulfide has a composition that approximates to SeS2 and is sometimes called selenium sulfide.
Selenium Sulfide
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Test |
Requirements |
Results |
Appearance |
light red powder |
White crystalline powder |
Solubility |
Slightly soluble in water and methanol. Practically insoluble in hexane. |
Complies |
Identification |
Should be corresponds |
Corresponds |
Water Content |
In the range of 2-4 % w/w |
2.9 % w/w |
Heavy metals |
Not more than 20ppm |
Less than 20ppm |
Residue on ignition |
Not more than 0.10% w/w |
0.07% |
Related substance Individual impurity Total impurities |
Not more than 0.5% Not more than 1.0% |
0.28% 0.87% |
Assay |
Not less than 98-102% |
99.6% |
Citric acid content (by titrimetry) |
In the range of 28-33 % w/w |
29.5 % w/w |
Conclusion |
The material complies with respect to the above specification |
Application
Selenium Sulfide has the function antifungal, anti-sebum spilling effect. Selenium Sulfide is used to treat tinea versicolor, head seborrheic dermatitis, dandruff, and multicolor snake skin. The formulation is a suspension. Can be used as an antidandruff agent in shampoos. The maximum allowable concentration in cosmetics is 0.5%.