US866851A - Generation of formaldehyde gas. - Google Patents

Generation of formaldehyde gas. Download PDF

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Publication number
US866851A
US866851A US36090707A US1907360907A US866851A US 866851 A US866851 A US 866851A US 36090707 A US36090707 A US 36090707A US 1907360907 A US1907360907 A US 1907360907A US 866851 A US866851 A US 866851A
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United States
Prior art keywords
generation
formaldehyde gas
formaldehyde
germany
peroxid
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Expired - Lifetime
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US36090707A
Inventor
Arthur Eichengruen
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Bayer AG
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Farbenfabriken Vorm Friedr Bayer and Co
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Priority to US36090707A priority Critical patent/US866851A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
    • A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals

Definitions

  • This invention relates to a new process r 5Iiemt ing gasedusionhaldehyd, which process consists in treating an aqueous formaldehyde solution with metallic peroidds havingen alkaline 'i'eaction, suchassodilim'peroxid Na o bar'iu'm peroxid BaO stronti'u n peroxidSrO etc. 011 using f'r instance the. commercial formaldehyde'solution 200 pints of a 40' percent. formaldehyde solution; are poured upon 5() of barium peroxid (Bat),).
  • T he process of generating gaseous formaldehyde, which consists in treating an aqueous formaldehyde solu- -tion with barium pcroxid. substantially as described.

Description

- I IJ s'ragnsj gnmfi? ARTHUR EICHENGRI'JN, OF ni'issewonr, GERMANY, ASSIGNOR TO YORM. F iIEDR. BAYER & '00., (5F ELBERFELD, GERMANY, A COR'iOBATION-OF GERMANY.
GENERATION OF FQRMALDEHYDE GAS.
Patented Sept. 24, 1907.
' .To all whom it may concern:
Be it known that I, Arirnun Eicnnuoizij'x, doctor 0i philosophy, chemist, a citizen or" the German Empir, residing at Dusseldorf, Germany, Kingdom of- Prussia, have invented new and useful improvements intl enerationjof Eonnaldehyde Gas; of which the following is-a specification.
This invention relates to a new process r 5Iiemt ing gasedusionhaldehyd, which process consists in treating an aqueous formaldehyde solution with metallic peroidds havingen alkaline 'i'eaction, suchassodilim'peroxid Na o bar'iu'm peroxid BaO stronti'u n peroxidSrO etc. 011 using f'r instance the. commercial formaldehyde'solution 200 pints of a 40' percent. formaldehyde solution; are poured upon 5() of barium peroxid (Bat),). A lively evolution fsotgaa takes place with generation of heat and the liquid begins to boil, gaseous formaldehyde and' steam being given 0fi-which may be used for d isiniccting purposes This reaction is probably due to catalysis.
Having now described my invention and in what manner the same is to be performed, what I claim as new and desire (lo-secure by Letterslatent is:-
' 1. The process of generating gaseous formaldehyde,
which consists in treating an aqueous formaldehyde solution with metallic peroxids having an alkaline reaction, substantially as described.
2. T,he process of generating gaseous formaldehyde, which consists in treating an aqueous formaldehyde solu- -tion with barium pcroxid. substantially as described.
. In testimony whereof ,I have hereunto set my hand inthe presence of two sub'scril ing witnesses.
. ARTHUR EICHENGRfiN. [n.s.1 Witnesses:
OTTO Komc, I J. A. Ri'rrr'nnsxws.
FARBENFABBIKEN
US36090707A 1907-03-06 1907-03-06 Generation of formaldehyde gas. Expired - Lifetime US866851A (en)

Priority Applications (1)

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US36090707A US866851A (en) 1907-03-06 1907-03-06 Generation of formaldehyde gas.

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US36090707A US866851A (en) 1907-03-06 1907-03-06 Generation of formaldehyde gas.

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US866851A true US866851A (en) 1907-09-24

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US36090707A Expired - Lifetime US866851A (en) 1907-03-06 1907-03-06 Generation of formaldehyde gas.

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