Urea, 1,1-dimethyl-2-thio- - Names and Identifiers
Name | 1,1-Dimethyl-2-thiourea
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Synonyms | Nsc 67246 NSC 67246 Ai3-17358 AI3-17358 Einecs 230-204-7 1,1-Dimethylthiourea 1,1-dimethylthiourea N,N-Dimethylthiourea 1,1-Dimethyl-thiourea 1,1-dimethyl-2-thiourea 1,1-Dimethyl-2-thiourea Thiourea, N,N-dimethyl- Urea, 1,1-dimethyl-2-thio- Thiourea, N,N-dimethyl- (9ci) Urea, 1,1-dimethyl-2-thio- (8ci)
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CAS | 6972-05-0
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EINECS | 230-204-7 |
InChI | InChI=1S/C3H8N2S/c1-5(2)3(4)6/h1-2H3,(H2,4,6) |
Urea, 1,1-dimethyl-2-thio- - Physico-chemical Properties
Molecular Formula | C3H8N2S
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Molar Mass | 104.17 |
Density | 1.108±0.06 g/cm3(Predicted) |
Melting Point | 163-164 °C |
Boling Point | 144.6±23.0 °C(Predicted) |
pKa | 15.52±0.29(Predicted) |
Storage Condition | Room Temprature |
Urea, 1,1-dimethyl-2-thio- - Risk and Safety
Urea, 1,1-dimethyl-2-thio- - Introduction
1,1-Dimethyl-2-thiourea, also known as 1,1-dimethyl-2-thioureido, has the formula C3H8N2S.
Nature:
1,1-dimethyl-2-thiourea is a colorless crystalline solid with a peculiar odor. It is relatively stable and not easy to decompose at room temperature. It has a melting point of about 155-160 degrees Celsius and begins to decompose at around 300 degrees Celsius. It is soluble in water, alcohol and chloride solutions and insoluble in non-polar solvents.
Use:
1,1-dimethyl-2-thiourea has many uses in the chemical industry. It can be used as a catalyst and intermediate in organic synthesis. It can also be used as an ion-selective removal agent for copper, as a solvent, catalyst, and anti-rust agent in metal processing and electroplating processes. In addition, 1,1-dimethyl-2-thiourea can also be used as an additive for pigments and dyes, as well as an ingredient in certain cosmetics.
Preparation Method:
1,1-Dimethyl-2-thiourea is usually obtained by reacting nickel thiocyanate with N,N-dimethylamine. The reaction proceeds at ambient temperature and produces 1,1-dimethyl-2-thioureido.
Safety Information:
1,1-Dimethyl-2-thiourea has low toxicity, but it is still necessary to pay attention to safe use. Contact with the skin or inhalation of its dust may cause allergic reactions. Avoid direct contact with skin and eyes during operation, and ensure that it is used in a well-ventilated environment. If accidentally inhaled or ingested, should seek medical attention. In addition, it should be kept away from fire sources and oxidants to avoid causing fire or explosion. Storage should be sealed to avoid mixing with other chemicals.
Last Update:2024-04-09 20:52:54