Product
Thiourea
Molecular formula
(NH2)2CS
Molecular weight
76.12
Specificity
White flake, column or needle crystal, it is bitter. Relative density is 1.405. It is soluble in water and alcohol, slightly soluble in ethylether. Melting point is 180-182°C. It is highly reactive and used for the manufacture of various compounds.
Standard
HG/T 3266-2002
Item
Premium Grade
First Grade
Regular Grade
Purity % ≥
99.0
98.5
98.0
Heating Loss % ≤
0.40
0.50
1.0
Ash content % ≤
0.10
0.15
0.30
Insoluble matter % ≤
0.02
0.05
0.10
Sulfocyan(CNS-)% ≤
0.02
0.05
0.10
Melting point °C ≥
171
170
-
Usage
Used as intermediate for the manufacture of medicine and pesticide, vulcanization accelerator in rubber industry, flotation agent in mining, fabric and paper treatment agent in printing and dying, antirusting agent and also in electroplating industry.
Package
Packed in net 25kg plastic woven bags with plastic bag inside.
Storage and transportation
Stored in cool, dry and ventilated warehouse. keep away from moisture and handle with care when transporting, loading and unloading.

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