GB754756A - Improvements in or relating to the manufacture of thiocarbohydrazide - Google Patents

Improvements in or relating to the manufacture of thiocarbohydrazide

Info

Publication number
GB754756A
GB754756A GB12298/54A GB1229854A GB754756A GB 754756 A GB754756 A GB 754756A GB 12298/54 A GB12298/54 A GB 12298/54A GB 1229854 A GB1229854 A GB 1229854A GB 754756 A GB754756 A GB 754756A
Authority
GB
United Kingdom
Prior art keywords
cooling
hydrazine
thiocarbohydrazide
dithiocarbazinate
relating
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
GB12298/54A
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.)
Olin Corp
Original Assignee
Olin Corp
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 Olin Corp filed Critical Olin Corp
Publication of GB754756A publication Critical patent/GB754756A/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Thiocarbohydrazide is made by refluxing a solution of hydrazinium dithiocarbazinate in the presence of hydrazine. The dithiocarbazinate can be made in situ from carbon disulphide and hydrazine and the whole process can thus be carried out in one step by using at least three mols. of hydrazine per mol. of carbon disulphide. The reaction takes 1-2 hours in water at 95 DEG C. and the product crystallizes out on cooling. The yield can be improved by intermittent heating and cooling of the mixture, the separated product being removed after each cooling. Experimental details are given.
GB12298/54A 1953-06-01 1954-04-28 Improvements in or relating to the manufacture of thiocarbohydrazide Expired GB754756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US754756XA 1953-06-01 1953-06-01

Publications (1)

Publication Number Publication Date
GB754756A true GB754756A (en) 1956-08-15

Family

ID=22126004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12298/54A Expired GB754756A (en) 1953-06-01 1954-04-28 Improvements in or relating to the manufacture of thiocarbohydrazide

Country Status (1)

Country Link
GB (1) GB754756A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734757A (en) * 1970-08-07 1973-05-22 Canadian Patents Dev Thiocarbohydrazone fungicides
US4294985A (en) * 1976-12-23 1981-10-13 Bayer Aktiengesellschaft Production of thiocarbohydrazide on a commercial scale
CN103044300A (en) * 2013-01-08 2013-04-17 杭州海虹精细化工有限公司 Method for synthesizing thiocarbohydrazide and thioglycolate by one-step method
CN106986802A (en) * 2017-05-22 2017-07-28 重庆丽澄环保科技有限公司 A kind of method for synthesizing thiocarbohydrazide
CN109320444A (en) * 2018-11-22 2019-02-12 湖南湘硕化工有限公司 A kind of preparation method of thiocarbohydrazide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734757A (en) * 1970-08-07 1973-05-22 Canadian Patents Dev Thiocarbohydrazone fungicides
US4294985A (en) * 1976-12-23 1981-10-13 Bayer Aktiengesellschaft Production of thiocarbohydrazide on a commercial scale
CN103044300A (en) * 2013-01-08 2013-04-17 杭州海虹精细化工有限公司 Method for synthesizing thiocarbohydrazide and thioglycolate by one-step method
CN106986802A (en) * 2017-05-22 2017-07-28 重庆丽澄环保科技有限公司 A kind of method for synthesizing thiocarbohydrazide
CN109320444A (en) * 2018-11-22 2019-02-12 湖南湘硕化工有限公司 A kind of preparation method of thiocarbohydrazide

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