Solubilised sulphur black Cas: 1326-83-6 Colour index no.: c.I. Solubilised sulphur black 1(53186) Standard of identity: hg/t3632-1999 Appearance black uniform granules or powder Spectrometer strength 1005 Strength(with the standard ) 100% Shade approximate to the standard Moisture, % 7.0 Insoluble impurity in water, % 0.5 Solubility, g/l(60µ) ² 60 Packing: in 25 kgs net woven bag / carton / iron drum. Standard of identity: hg/t3632-1999