| Chemical Properties | Back Directory |
[Appearance]
1-Acetyl-2-thiourea is a white crystalline solid; forming needles |
[Melting point ]
165-169 °C(lit.) |
[density ]
1.240 (estimate) |
[refractive index ]
1.7000 (estimate) |
[storage temp. ]
Store below +30°C. |
[solubility ]
12.8g/l |
[form ]
Crystalline Powder |
[pka]
11.24±0.70(Predicted) |
[color ]
Pale cream |
[PH]
6.0 (173g/l, H2O, 20℃) |
[BRN ]
969960 |
[CAS DataBase Reference]
591-08-2(CAS DataBase Reference) |
[EPA Substance Registry System]
1-Acetyl-2-thiourea (591-08-2) |
| Hazard Information | Back Directory |
[General Description]
White crystalline solid. Noncombustible, but decomposes with heating. |
[Reactivity Profile]
1-ACETYL-2-THIOUREA(591-08-2) is incompatible with strong oxidizing agents, strong acids and strong bases. Decomposes when heated to give toxic oxides of sulfur and nitrogen. |
[Air & Water Reactions]
Slightly soluble in water, soluble in hot water. Hydrolysis occurs rapidly with strong acid/base media. |
[Health Hazard]
TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. |
[Potential Exposure]
Studied as possible rodenticide; used in organic synthesis. |
[Fire Hazard]
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. |
[First aid]
Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In the case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.
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[Shipping]
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. |
[Incompatibilities]
Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. |
[Chemical Properties]
1-Acetyl-2-thiourea is a white crystalline solid; forming needles |
[Chemical Properties]
white crystalline powder |
[Waste Disposal]
Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.
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[Uses]
N-Acetylthiourea is a derivative of Thiourea (T375450) |
[Definition]
ChEBI:N-acetylthiourea is a member of the class of thioureas that is thiourea in which one of the hydrogens is replaced by an acetyl group. It is a member of acetamides and a member of thioureas. It is functionally related to a thiourea. |
[Purification Methods]
Recrystallise the thiourea from AcOH; the solid is washed with Et2O and dried in air then at 100o. [Zahradnik Collect Czech Chem Commun 24 3678 1959, Beilstein 3 IV 354.] |