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GB903864A - Process for the preparation of thiourea - Google Patents

Process for the preparation of thiourea

Info

Publication number
GB903864A
GB903864A GB14498/61A GB1449861A GB903864A GB 903864 A GB903864 A GB 903864A GB 14498/61 A GB14498/61 A GB 14498/61A GB 1449861 A GB1449861 A GB 1449861A GB 903864 A GB903864 A GB 903864A
Authority
GB
United Kingdom
Prior art keywords
thiourea
preparation
reaction
fallen
reacting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB14498/61A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Nationale des Petroles dAquitaine SA
Original Assignee
Societe Nationale des Petroles dAquitaine SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe Nationale des Petroles dAquitaine SA filed Critical Societe Nationale des Petroles dAquitaine SA
Publication of GB903864A publication Critical patent/GB903864A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Thiourea is prepared by reacting an aqueous suspension of calcium cyanamide with a gaseous mixture containing carbon dioxide and hydrogen sulphide at a temperature of up to 70 DEG C., and when the pH of the reaction medium has fallen to a value of from 6.0 to 6.1, stopping the reaction and separating the thiourea formed.
GB14498/61A 1960-05-09 1961-04-21 Process for the preparation of thiourea Expired GB903864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR826588A FR1264518A (en) 1960-05-09 1960-05-09 Process for preparing thiourea

Publications (1)

Publication Number Publication Date
GB903864A true GB903864A (en) 1962-08-22

Family

ID=8730961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14498/61A Expired GB903864A (en) 1960-05-09 1961-04-21 Process for the preparation of thiourea

Country Status (2)

Country Link
FR (1) FR1264518A (en)
GB (1) GB903864A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109761865A (en) * 2019-03-06 2019-05-17 黄河三角洲京博化工研究院有限公司 A kind of environment-friendly preparation method thereof of thiocarbamide
CN117510386A (en) * 2023-11-09 2024-02-06 深圳市中核海得威生物科技有限公司 An isotope-labeled thiourea and its preparation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109761865A (en) * 2019-03-06 2019-05-17 黄河三角洲京博化工研究院有限公司 A kind of environment-friendly preparation method thereof of thiocarbamide
CN117510386A (en) * 2023-11-09 2024-02-06 深圳市中核海得威生物科技有限公司 An isotope-labeled thiourea and its preparation method

Also Published As

Publication number Publication date
FR1264518A (en) 1961-06-23

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