CH4N2S M.W. 76.12
DESCRIPTION .............. white crystalline compound
SOLUBILITY ............... 10% aq soln is clear & colourless
ASSAY(RT) ................ min 99%
MELTING POINT ............ 174-177??C
LOSS ON DRYING ........... max 0.5%
SULPHATED ASH ............ max 0.05%
WATER INSOLUBLE MATTER ... max 0.005%
CHLORIDE(Cl) ............. max 0.001%
SULPHATE(SO4) ............ max 0.005%
IRON(Fe) ................. max 0.0005%
HEAVY METALS(Pb) ......... max 0.001%
SENSITIVITY FOR Bi ....... passes test