Thiourea CAS#62-56-6

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Chemical Name:Thiourea

CAS No62-56-6

Molecular Formula:CH4N2S

Molecular weight:76.12

Sample: Available

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Product Details

Products Description of Thiourea CAS#62-56-6

Thiourea, English name: Thiourea, white bright bitter crystal, soluble in cold water, ethanol, slightly soluble in ether, easily deliquescent in the air, and transforms into ammonium thiocyanate at 150°C. It has reducing properties and can reduce free iodine to iodide ions. Thiourea is highly reactive and is used to prepare various compounds. It can react with a variety of oxidants to form organic compounds, and can also react with inorganic compounds to form easily soluble addition compounds.Thiourea also has a wide range of application prospects in petrochemical and pharmaceutical chemicals. Many pharmaceutical molecules contain thiourea structural fragments. Thiourea is also an important intermediate for the synthesis of heterocyclic compounds. For example, many oral hypoglycemic drugs and antithyroid drugs on the market are thiourea molecules. In addition, thiourea compounds have good insecticidal activity and are widely used in the field of pesticides. In organic synthesis, it is used to make thiourea derivatives such as methylthiourea, diethylthiourea, diphenylthiourea, and thiourea dioxide, and a catalyst for the preparation of phthalic anhydride and fumaric acid. It is used to prepare epoxy resin fast curing agents, synthetic resin coatings, and anion exchange resins. It can also be used as a toughening agent for melamine formaldehyde resin adhesives. In terms of photographic materials, thiourea can be used as a developer and toner, and a reducing agent for azo photosensitive paper. It is also used as a vulcanization accelerator for rubber, a flotation agent for metal minerals, a dye dyeing auxiliaries, a processing aid for fabrics, nylon and polyester fibers, a paper treatment agent, an electroplating additive, a metal rust inhibitor, an insecticide, a fertilizer, etc.


Thiourea Chemical Properties

Melting point 

170-176 °C (lit.)

Boiling point 

263.89°C (estimate)

density 

1.405

refractive index 

1.5300 (estimate)

storage temp. 

Store below +30°C.

solubility 

water: soluble137g/L at 20°C

form 

Crystals

pka

-1.0(at 25℃)

Specific Gravity

1.406

color 

White to almost white

Odor

Odorless

PH Range

5 - 7

PH

6-8 (50g/l, H2O, 20℃)

Water Solubility 

13.6 g/100 mL (20 ºC)

Merck 

14,9367

BRN 

605327

Stability:

Stable. Incompatible with strong acids, strong bases, strong oxidizing agents, metallic salts, proteins, hydrocarbons. May react violently with acrolein.

InChIKey

UMGDCJDMYOKAJW-UHFFFAOYSA-N

LogP

-1.050 (est)

CAS DataBase Reference

62-56-6(CAS DataBase Reference)

IARC

3 (Vol. Sup 7, 79) 2001

NIST Chemistry Reference

Thiourea(62-56-6)

EPA Substance Registry System

Thiourea (62-56-6)

 Safety Information

Hazard Codes 

Xn,N,Xi

Risk Statements 

22-40-51/53-63-43-38

Safety Statements 

36/37-61

RIDADR 

UN 2811 6.1/PG 3

WGK Germany 

2

RTECS 

YU2800000

Autoignition Temperature

440 °C Dust

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

HS Code 

29309070

Hazardous Substances Data

62-56-6(Hazardous Substances Data)

Toxicity

LD50 orally in wild Norway rats: 1830 mg/kg (Dieke)

Product Application of Thiourea CAS#62-56-6

This product is used as a raw material for the synthesis of drugs such as sulfathiazole, methionine and pig fat tablets. It is used as a raw material for dyes and dyeing auxiliaries, resins and compression powders. It can also be used as a vulcanization accelerator for rubber, a flotation agent for metal minerals, a catalyst for the preparation of phthalic anhydride and fumaric acid, and a metal anti-corrosion agent. In terms of photographic materials, it can be used as a developer and toner. It can also be used in the electroplating industry. Thiourea is also used in diazo-sensitive paper, synthetic resin coatings, anion exchange resins, germination promoters, fungicides and many other aspects. Thiourea is also used as a fertilizer.



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