Thiourea

Description

Synonym: Thiocarbamide; *-Thiourea; Pseudothiourea; Isothiourea General description: Molecular Formula: CH4N2S Molecular Weight: *6.*2 CAS NO: ******6 Melting Point: **2 C, **5 K, **0 F Density: 1.**5g/ml Boiling point: **0 - **0C (**2 - **0F) Sublimes in vacuum Product Codes: ***** Baker: ***3 ;Mallinckrodt: ***8 UN NO: ***1 *****:***0.*0 EINECS NO: ********5 Vapor density: 2.6 Autoignition: **0 C Appearance: Bright white crystalline bitter Hazard class: 6.1(Packing group:Ш) Application: Thiourea can reduce peroxides to the corresponding ***** is also used in the reductive workup of ozonolysis to give carbonyl ***** is commonly employed to convert alkyl halides to ***** are used a building blocks to pyrimidine derivatives. Another common application for use of thiourea is a common sulfur source for making semiconductor cadmium sulfide ***** industrial uses of thiourea include production of flame retardant resins, and vulcanization accelerators. Thiourea is used as an auxiliary agent in diazo paper (light-sensitive photocopy paper) and almost all other types of copy paper. The liquid silver cleaning product TarnX is essentially a solution of thiourea. A leaching agent for gold leaching and silver leaching can be created by selectively oxidizing thiourea, bypassing the steps of cyanide use and smelting. Specification: Index Excellent Products First-class Product Qualified product Thiourea% *9.0 min *8.5 min *8.0 min Loss On Heating% 0.*0 max 0.*0 max 1.*0 max Ash% 0.*0 max 0.*5 max 0.*0 max Water Insoluble% 0.*2 max 0.*5 max 0.*0 max Thiocyanate(CNS)% 0.*2 max 0.*5 max 0.*0 max Melting Point C **1 min **0 min **- Packaging: Lined with plastic bags, plus a plastic woven bag packaging, each bag net weight of *5 kilograms or *0 kilograms. Storage: Stored in a cool, ventilated warehouse. Away from fire, heat source. Sealed packaging requirements can not be exposed to the air.With acid category, food chemicals are kept separately and avoid mixing reservoir. Should not be a large number of storage or store for a long time. Corresponding with the number of species and fire devices.