Thiourea
　　Other name：2-Thiourea; Isothiourea; sulfocarbamide; sulfouren; sulourea; Thiocarbamide; Thiurea; THU; thio arbamid; sulphourea; carbamoylsulfamic acid
　　CAS No.: 62-56-6
　　EINECS No.: 200-543-5
　　UN No.: 2811  3077
　　CN No.: 61821
　　HS No.：2930909099
　　Molecular Formula: （NH₂)₂CS    
　　Molecular weight: 76.2
　　1. Appearance: White or light yellow, shiny flakes, columnar or needle crystal, taste bitter.
　　2. Specifications:
　　2.1.Thiourea Industry Grade
　　Quality standards ：HG/T3266-2002

Item                        Index	Superior product	First grade	Qualified product
（NH2)2CS, wt%≥	99.00	98.5	98.0
Loss On Heat, wt%≤	0.40	0.50	1.00
Insoluble Matter In Water, wt%≤	0.02	0.05	0.10
Thiocyanate as SCN, wt%≤	0.02	0.05	0.10
Melting point，℃≥	171	170	-
Ash, wt%≤	0.10	0.15	0.30

　　2.2、AR Thiourea
　　Quality standards ：HG/T 3454—1999

I t e m	Index
Characters	White crystalline
Assay，%≥	99.0
Appearance of solution	with the standard
Water-insoluble，%≤	0.002
Loss on drying，%≤	0.5
Ignition residue，%≤	0.005
Thiocyanate，%≤	0.005

　　3. Packaging: Net wt 25kg in plastic bag lined plastic film woven bag, can also package according to customer request
　　4. Uses: Raw material of medicine, dye, resin, pressure molding powder and so on, rubber curing promoter, metallic minerals flotation agent and so on.
　　5. Storage: Stored in cool and ventilated, avoid light place.
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