Purified sulfur used in the manufacture of drugs

 

Indicator names Results
1. Describing light yellow Amorphous powder
2. Solubility Practically insoluble in water, soluble in boiling mixture
3. Authenticity The drug burns with a blue flame, spreading the smell of sulfur dioxide
4. The acidity of 0.05 n NaOH, ml, not more 0,12
5. Mass fraction:, %, not more

-Sulfates

-chlorides

 

0,04

0,008

6. Loss in weight during drying, %, not more 0,5
7. Ash, %, not more 0,15
8. Mass fraction of sulfur, %, not less 99,5