DE257808C - - Google Patents

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Publication number
DE257808C
DE257808C DE1910257808D DE257808DA DE257808C DE 257808 C DE257808 C DE 257808C DE 1910257808 D DE1910257808 D DE 1910257808D DE 257808D A DE257808D A DE 257808DA DE 257808 C DE257808 C DE 257808C
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DE
Germany
Prior art keywords
sodium perborate
acidic
mixtures
hydrogen peroxide
sodium
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
DE1910257808D
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German (de)
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Publication of DE257808C publication Critical patent/DE257808C/de
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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/055Peroxyhydrates; Peroxyacids or salts thereof
    • C01B15/12Peroxyhydrates; Peroxyacids or salts thereof containing boron

Description

sauren Salz.acidic salt.

Patentiert im Deutschen Reiche vom 13. Februar 1910 ab.Patented in the German Empire on February 13, 1910.

Die Wirksamkeit des Natriumperborats in wässeriger Lösung als Desinfektionsmittel beruht auf seiner Dissoziierbarkeit in Wasserstoffsuperoxyd und Borsäure. Da das Natriumperborat schwer löslich und nur teilweise dissoziiert ist, so tritt die volle Wirkung desselben erst dann ein, wenn man durch Zusatz verdünnter Säuren aus dem Salze das Wasserstoffsuperoxyd freimacht. Man hat dieseThe effectiveness of the sodium perborate in aqueous solution as a disinfectant is based on its dissociability into hydrogen peroxide and boric acid. As the sodium perborate is sparingly soluble and only partially dissociated, it is fully effective only when the hydrogen peroxide can be obtained from the salts by adding dilute acids clears. You have this

ίο Dissoziation erreicht durch Zusatz von Phosphorsäure oder von sauren Salzen zu den wässerigen Lösungen von Natriumperborat. Dagegen war es nicht möglich, feste, haltbare Mischungen von kristallisiertem Natriumperborat NaBO3 -)- 4H2O mit sauren Agenzien herzustellen, da sich diese Mischungen in kurzer Zeit völlig zersetzten. Neuerdings hat Byk (franz. Patent 401911 vom 9. April 1909) diesen Übelstand dadurch zu vermeiden gesucht, daß er entwässertes Natriumperborat mit Natriumbitartrat mischte. Doch zeigt auch diese Mischung insofern noch einen Nachteil, als das entwässerte Natriumperborat naturgemäß bestrebt ist, sich wiederum mit Wasser zu sättigen und so in die zersetzliche Mischung überzugehen: die Salzmischung ist nach Angabe hygroskopisch und muß daher vorsichtig aufbewahrt werden.ίο Dissociation achieved by adding phosphoric acid or acid salts to the aqueous solutions of sodium perborate. In contrast, it was not possible to produce solid, durable mixtures of crystallized sodium perborate NaBO 3 -) - 4H 2 O with acidic agents, since these mixtures completely decomposed in a short time. Recently Byk (French patent 401911 of April 9, 1909) tried to avoid this problem by mixing dehydrated sodium perborate with sodium bitartrate. However, this mixture also has a disadvantage in that the dehydrated sodium perborate naturally tries to become saturated again with water and thus to convert into the decomposing mixture: the salt mixture is said to be hygroscopic and must therefore be stored carefully.

Nach allen vorliegenden Erfahrungen ist die beständigste Form des Natriumperborats das körnige kristallisierte Salz der Formel NaBO3 -f-4H2O mit 10,4 Prozent aktivem Sauerstoff.According to all available experience, the most stable form of sodium perborate is the granular, crystallized salt of the formula NaBO 3 -f-4H 2 O with 10.4 percent active oxygen.

Bisher ist es aber nicht gelungen, haltbare Mischungen gerade dieses Salzes mit sauren Salzen herzustellen. Es wurde gefunden, daß die gut kristallisierenden Natronsalze der Sulfobenzoesäuren C6H4 (COOH)-SO3Na, die sich durch rein sauren Geschmack, Unschädlichkeit und Leichtlöslichkeit auszeichnen, mit kristallisiertem Natriumperborat nicht hygroskopische, haltbare Mischungen liefern, die in wässeriger Lösung in Wasserstoffsuperoxyd, Borsäure und sulfobenzoesaures Natron zerfallen. So far, however, it has not been possible to produce durable mixtures of this particular salt with acidic salts. It has been found that the well-crystallizing sodium salts of sulfobenzoic acids C 6 H 4 (COOH) -SO 3 Na, which are characterized by a purely sour taste, harmlessness and easy solubility, provide non-hygroscopic, durable mixtures with crystallized sodium perborate, which in aqueous solution in Hydrogen peroxide, boric acid and sodium sulfobenzoate disintegrate.

45 Beispiel.45 example.

10 kg kristallisiertes Natriumperborat werden mit 14,6 kg saurem sulfobenzoesaurem Natron zu einem feinen Pulver gemischt. 12 g dieser Mischung in 100 ecm Wasser entsprechen einer einprozentigen Lösung von Wasserstoffsuperoxyd, die gleichzeitig 1,8 Prozent Borsäure enthält.10 kg of crystallized sodium perborate are mixed with 14.6 kg of acidic sulfobenzoic acid Baking soda mixed into a fine powder. 12 g of this mixture in 100 ecm of water correspond a one percent solution of hydrogen peroxide, which is 1.8 percent Contains boric acid.

■ Patent-Anspruch:■ Patent claim:

Verfahren zur Herstellung haltbarer fester, mit Wasser Wasserstoffsuperoxyd entwickelnder Perboratmischungen aus Natriumperborat und einem festen, sauren Salz, dadurch gekennzeichnet, daß man kristallisiertes Natriumperborat mit den sauren Salzen der Sulfobenzoesäure in äquivalenten Mengen mischt.Process for the production of durable, solid products that develop hydrogen peroxide with water Perborate mixtures of sodium perborate and a solid, acidic salt, characterized in that they are crystallized Sodium perborate is mixed with the acidic salts of sulfobenzoic acid in equivalent amounts.

5555

6060

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

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. PATENTSCHRIFTPATENT LETTERING - Ju 257808 KLASSE 12*. GRUPPE- Ju 257808 CLASS 12 *. GROUP in SALBKE-WESTERHÜSEN.in SALBKE-WESTER HÜSEN.
DE1910257808D 1910-02-12 1910-02-12 Expired - Lifetime DE257808C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE257808T 1910-02-12

Publications (1)

Publication Number Publication Date
DE257808C true DE257808C (en)

Family

ID=8898928

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1910257808D Expired - Lifetime DE257808C (en) 1910-02-12 1910-02-12

Country Status (2)

Country Link
DE (1) DE257808C (en)
FR (1) FR425958A (en)

Also Published As

Publication number Publication date
FR425958A (en) 1911-06-24

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