[Standard]: GB/T9015-1998

[Molecular formula]: (CH₂)₆N₄

[Molecular weight]: 140.19

[Properties]:

Item	Value
	Premium grade	First grade	Salable product	Test method
purity %	99.3	99.0	98.0	direct
moisture %	0.50	0.5	1.0	GB/T6283
ash %	0.03	0.05	0.08	GB/T7531
appearance of Aq.solution	ok	ok	-	eyeballing
heavy metal (as Pb) %	0.001	0.001	-	colorimetry
chloride (as Cl) %	0.015	0.015	-	colorimetry
sulfate(SO4) %	0.02	0.02	-	colorimetry
ammonia salt (NH4) %	0.001	0.001	-	colorimetry

[Properties]: White crystalline powder.

[Uses]: Rubber vulcanization accelerant, material or aids, also applied in medicine.

[Packing & storage]: 25kg in woven bag lined with polythene bag In cool airiness place, avoid moisture.