DE337322C - Process for the production of metaborate - Google Patents

Process for the production of metaborate

Info

Publication number
DE337322C
DE337322C DE1920337322D DE337322DD DE337322C DE 337322 C DE337322 C DE 337322C DE 1920337322 D DE1920337322 D DE 1920337322D DE 337322D D DE337322D D DE 337322DD DE 337322 C DE337322 C DE 337322C
Authority
DE
Germany
Prior art keywords
metaborate
production
borax
hydroxide solution
sodium hydroxide
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
DE1920337322D
Other languages
German (de)
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.)
DR ASCHKENASI
Original Assignee
DR ASCHKENASI
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 DR ASCHKENASI filed Critical DR ASCHKENASI
Application granted granted Critical
Publication of DE337322C publication Critical patent/DE337322C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00Boron; Compounds thereof
    • C01B35/08Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
    • C01B35/10Compounds containing boron and oxygen
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00Boron; Compounds thereof
    • C01B35/06Boron halogen compounds
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00Boron; Compounds thereof
    • C01B35/08Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
    • C01B35/10Compounds containing boron and oxygen
    • C01B35/12Borates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

Verfahren zur Herstellung von 119etaborat. Bei der Herstellung von Perborat mit Zuhilfenahme von 3oprozentigem Wasserstoffsuperoxyd verwendet man festes Metaborat. Dieses erhält man in bekannter Weise durch Verschmelzen der berechneten Mengen Soda und Borax; zu Hydraten des Mietaborats gelangt man ferner, wenn man Gemische von Natronlauge und Borax in einer Retorte zu einem dünnen Sirup verdampft und diesen über konzentrierter Schwefelsäure kristallisieren .läßt.Process for the preparation of 119etaborate. In the production of Solid perborate is used with the aid of 3% hydrogen peroxide Metaborate. This is obtained in a known manner by merging the calculated Lots of soda and borax; one also arrives at hydrates of the rental laboratory if one Mixtures of caustic soda and borax evaporated into a thin syrup in a retort and lets this crystallize over concentrated sulfuric acid.

Es hat sich nun gezeigt, daß man die hei den bekannten Verfahren angewandten Schmelzprozesse vermeiden kann und auf kaltem Wege zu einem für die Perboratherstellung geeigneten Metaborat gelangen kann. Wenn man nämlich hochkonzentrierte NTatronlauge mit Borax verrührt, findet zuerst eine vorübergehende Verflüssigung der Mischung statt, da der Borax an die konzentrierte Natronlauge offenbar Kristallwasser abgibt, nach wenigen Augenblicken erfolgt unter merklicher Erwärmung das Festwerden der Flüssigkeit unter Bildung von Natriuminetaborat. Beispiel. Zoo g pulverisierter, kristallisierter Borax werden in 117 g Natronlauge vom spez. Gewicht 1,384 eingetragen und schnell verrührt; die verfestigte feuchte Masse wird im Vakuum unter mäßigem Erwärmen getrocknet.It has now been shown that the melting processes used in the known processes can be avoided and a metaborate suitable for the production of perborate can be obtained by cold means. If you stir highly concentrated sodium hydroxide solution with borax, the mixture first temporarily liquefies, since the borax evidently gives off water of crystallization to the concentrated sodium hydroxide solution, after a few moments the liquid solidifies with noticeable warming with the formation of sodium inetaborate. Example. Zoo g of powdered, crystallized borax are dissolved in 11 7 g of sodium hydroxide solution of the spec. Weight 1.384 entered and stirred quickly; the solidified moist mass is dried in vacuo with moderate heating.

Claims (1)

PA TRNT-ANSPRUCFI: Verfahren zur Herstellung von Metaborat, darin bestehend, daß man konzentrierte Natronlauge mit gepulvertem, k ristallisiiertem Borax vermischt und das feste Reaktionsprodukt im Vakuum unter mäßigem Erwärmen trocknet.PA TRNT-ANSPRUCFI: Process for the production of metaborate, therein consisting that one concentrated sodium hydroxide solution with powdered, crystallized Borax mixed and the solid reaction product in vacuo with moderate heating dries.
DE1920337322D 1920-01-06 1920-01-06 Process for the production of metaborate Expired DE337322C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE337322T 1920-01-06

Publications (1)

Publication Number Publication Date
DE337322C true DE337322C (en) 1921-05-25

Family

ID=6221347

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920337322D Expired DE337322C (en) 1920-01-06 1920-01-06 Process for the production of metaborate

Country Status (1)

Country Link
DE (1) DE337322C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034913B (en) * 1953-07-31 1958-07-24 Chipman Chemical Company Inc Solid, grainy, crystalline agent for controlling vegetation, particularly for weed control
US2886425A (en) * 1953-07-31 1959-05-12 Chipman Chemical Company Inc Process of making sodium metaborate and compositions comprising the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034913B (en) * 1953-07-31 1958-07-24 Chipman Chemical Company Inc Solid, grainy, crystalline agent for controlling vegetation, particularly for weed control
US2886425A (en) * 1953-07-31 1959-05-12 Chipman Chemical Company Inc Process of making sodium metaborate and compositions comprising the same

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