Thiourea

Item	HG/T3454-1999		ACS Grade	company standard
	(AR)	(CP)		(reality)
Assay(H2NCSNH2),%             ≥	99.0	98.0	99.0	99.0
Loss on drying  %                  ≤	0.5	- - -	0.5	0.5
Clarity	passes test	passes test
Insoluble matter in water,%    ≤	0.002	0.01		0.002
Ignition residue(as SO4),%     ≤	0.005	0.02		0.005
Thiocyanate(as CNS),%         ≤	0.005	0.01		0.005
Solubility in water			passes test
Residue after ignition, %         ≤			0.1
Chloride(CL), %                      ≤				0.005
Sulfate(SO4), %                     ≤				0.005
Cadmium(Cd),mg/kg                ≤				5
Calcium(Ca),mg/kg                  ≤				10
Chromium(Cr),mg/kg               ≤				5
Cobalt(Co),mg/kg                    ≤				5
Copper(Cu),mg/kg                  ≤				5
Ferrum (Fe),mg/kg                 ≤				5
Lead(Pb),mg/kg                      ≤				5
Magnesium(Mg), mg/kg          ≤				5
Manganese(Mn), mg/kg         ≤				5
Nickel(Ni),mg/kg                     ≤				5
Zinc(Zn),mg/kg                      ≤				5
Potassium (K),mg/kg              ≤				50
Sodium(Na),mg/kg                 ≤				50

Properties: Thiourea is white grain, lustrous crystal, bitter, specific gravity of 1.406, melting point: 174-177degree

Use: Thiourea is mainly used to produce Thiourea Dioxide. It is widely used in medicine (Sulfathiazole, Methylthiouracil, niridazole and Fluorouracil), pesticide (insecticide, bactericide, acaricide, herbicide and virus prevention and cure and so on), chemical fertilizer (nitrogenous fertilizer synergist), silk making, agriculture and metal mine choosing. Petroleum and so on.
Analytical reagent. Used for bismuth, osmium, rhodium, selenium, tellurium, lead, the determination of nitrite, etc. Measurement osmic complex indicator.

Packing: 25 kg/cardboard barrels or according to the customer request.