DE179304C - - Google Patents

Info

Publication number
DE179304C
DE179304C DE1905179304D DE179304DA DE179304C DE 179304 C DE179304 C DE 179304C DE 1905179304 D DE1905179304 D DE 1905179304D DE 179304D A DE179304D A DE 179304DA DE 179304 C DE179304 C DE 179304C
Authority
DE
Germany
Prior art keywords
chromic acid
bisulfate
mixture
acid
chromic
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 - Lifetime
Application number
DE1905179304D
Other languages
German (de)
Filing date
Publication of DE179304C publication Critical patent/DE179304C/de
Application filed filed Critical
Priority to AT29539D priority Critical patent/AT29539B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/02—Oxides or hydrates thereof
    • C01G37/033—Chromium trioxide; Chromic acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

Patent-Anspruch :Patent claim: Verfahren zur Darstellung von Chromsäure aus Alkalichromaten, -bichromaten und schwefelsäurehaltiger Chromsäure durch Überführen der Verbindungen der Chromsäure in eine Mischung von Chromsäure und Bisulfat, dadurch gekennzeichnet, daß man diese Mischung zum Schmelzen erhitzt, wobei zwei flüssige, nicht mit einander mischbare Schichten von Bisulfat und Chromsäure entstehen, die sich mechanisch leicht von einander trennen lassen.Process for the preparation of chromic acid from alkali chromates, bichromates and chromic acid containing sulfuric acid by converting the compounds of chromic acid into a mixture of chromic acid and bisulfate, characterized in that this mixture is melted heated, with two liquid, immiscible layers of bisulfate and chromic acid, which can easily be separated from one another mechanically.
DE1905179304D 1905-10-31 1905-10-31 Expired - Lifetime DE179304C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT29539D AT29539B (en) 1905-10-31 1906-11-29 Process for the preparation of chromic acid.

Publications (1)

Publication Number Publication Date
DE179304C true DE179304C (en)

Family

ID=443636

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1905179304D Expired - Lifetime DE179304C (en) 1905-10-31 1905-10-31

Country Status (1)

Country Link
DE (1) DE179304C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203748B (en) * 1961-04-29 1965-10-28 Bayer Ag Continuous process for the production of chromium trioxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203748B (en) * 1961-04-29 1965-10-28 Bayer Ag Continuous process for the production of chromium trioxide

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