Arsenic Trisulfide
As2S3 Molar Mass Conversion in Batch
Elem.
Total
Name
Atomic Mass
(g/mol)
Percentage
Mass
As
2
Arsenic
74.9216
60.902%
149.84
S
3
Sulfur
32.065
39.098%
96.2
→ As2S3
Total: 246.0382 (g/mol)
Example Reactions:
• 2H3AsO4 + 5H2S = As2S3 + 2S + 8H2O
• 2AsCl3 + 3H2S = As2S3 + 6HCl
• 2AsBr3 + 3H2S = As2S3 + 6HBr
• 2As(NO3)3 + 3H2S = As2S3 + 6HNO3
• As2S3 + 14MnO2 + 6Na2CO3 = 2Na3AsO4 + 3Na2SO4 + 14MnO + 6CO2
• As2S3 + 24NaNO3 + 21HCl = 3NaHSO4 + As2O3 + 12N2O4 + 21NaCl + 9H2O
• As2O3 + 3H2S = As2S3 + 3H2O