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GB122498A - Improvements in and relating to the Preparation of Dimethyl Sulphate. - Google Patents

Improvements in and relating to the Preparation of Dimethyl Sulphate.

Info

Publication number
GB122498A
GB122498A GB179618A GB179618A GB122498A GB 122498 A GB122498 A GB 122498A GB 179618 A GB179618 A GB 179618A GB 179618 A GB179618 A GB 179618A GB 122498 A GB122498 A GB 122498A
Authority
GB
United Kingdom
Prior art keywords
sulphur trioxide
air
dimethyl sulphate
sulphur
reaction
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
GB179618A
Inventor
Walter Norman Haworth
James Colquhoun Irvine
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB179618A priority Critical patent/GB122498A/en
Publication of GB122498A publication Critical patent/GB122498A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C305/00—Esters of sulfuric acids

Landscapes

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

Abstract

122,498. Haworth, W. N., and Irvine, J. C. Jan. 1918. Dimethyl sulphate is prepared by the reaction of sulphur trioxide on dimethyl ether in the presence of a solvent or diluent, preferably dimethyl sulphate itself. The sulphur trioxide used is preferably diluted with an indifferent gas; thus a current of air may be passed through hot fuming sulphuric acid and the resulting mixture of air and sulphur trioxide used, or the mixture of air, sulphur dioxide, and sulphur trioxide resulting from the contact process of making sulphur trioxide may be used. The product of the reaction is treated, either with ice or preferably with a reducing-agent such as iron filings to destroy any sulphur trioxide present and is purified by distillation in vacuo.
GB179618A 1918-01-31 1918-01-31 Improvements in and relating to the Preparation of Dimethyl Sulphate. Expired GB122498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB179618A GB122498A (en) 1918-01-31 1918-01-31 Improvements in and relating to the Preparation of Dimethyl Sulphate.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB179618A GB122498A (en) 1918-01-31 1918-01-31 Improvements in and relating to the Preparation of Dimethyl Sulphate.

Publications (1)

Publication Number Publication Date
GB122498A true GB122498A (en) 1919-01-30

Family

ID=32340725

Family Applications (1)

Application Number Title Priority Date Filing Date
GB179618A Expired GB122498A (en) 1918-01-31 1918-01-31 Improvements in and relating to the Preparation of Dimethyl Sulphate.

Country Status (1)

Country Link
GB (1) GB122498A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105712903A (en) * 2016-01-20 2016-06-29 山东兴辉化工有限公司 Dimethyl sulfate residue treatment method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105712903A (en) * 2016-01-20 2016-06-29 山东兴辉化工有限公司 Dimethyl sulfate residue treatment method

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