Crystalline calcium formate yowotcha zikopa

Njira yopangira:

1. Njira yosalowerera ndale

Formic acid imachotsedwa ndi hydrated laimu kuti ipange calcium formate, ndipo malonda a calcium formate amapezeka mwa kuyenga.

2. Njira yowola yamagulu

Pamaso pa chothandizira, sodium formate ndi calcium nitrate zimawonongeka kawiri kuti zipeze calcium formate ndikupanganso sodium nitrate. Mapangidwe a calcium yamalonda adapezedwa poyenga.

3. Njira yopangira epoxy fatty acid methyl ester

Kupanga kwa epoxy fatty acid methyl ester kumakula mofulumira, ndipo kuchuluka kwakukulu kwa mankhwala a formic acid kumapangidwa popanga. Imodzi mwa njira zogwiritsira ntchito mankhwalawa ndi kupanga mapangidwe a calcium.

4. Njira yoberekera

Popanga, calcium hydroxide imagwiritsidwa ntchito popereka zinthu zofunika kuchita, ndipo formic acid imawonjezedwa potsatira zomwe zimachitika ndi calcium hydroxide neutralization panthawi imodzimodziyo kupanga calcium formate.

Formic acid ndi carboxylic acid yomwe imatha kuwonjezeredwa ku olefins.Formic acid mu zochita za zidulo (monga sulfuric acid, hydrofluoric acid), ndi olefins zimachita mwachangu kupanga mawonekedwe. Komabe, zomwe zimachitika m'mbali zofanana ndi zomwe Koch zimachita zimathanso kuchitika, pomwe mankhwalawo amakhala okwera kwambiri a carboxylic acid.

Mtengo wa octanol/gawo logawa madzi: -, malire a kuphulika kwapamwamba % (V/V) :, malire ophulika apansi % (V/V) :.

Formic acid ndi amphamvu kuchepetsa wothandizila ndi siliva galasi anachita. Acidic mu saturated mafuta zidulo, dissociation mosalekeza ndi×10-4. Pang'onopang'ono amaphwanyidwa kukhala carbon monoxide ndi madzi kutentha kwa firiji. Imatenthedwa mpaka 60-80℃ndi concentrated sulfuric acid kuti awole ndi kutulutsa carbon monoxide. Pamene formic acid itenthedwa pamwamba pa 160° C, amawola kuti atulutse mpweya woipa ndi haidrojeni. Mchere wamchere wachitsulo wa formic acid umatenthedwa mpaka 400° C kupanga oxalates.

Amagwiritsidwa ntchito muzomangamanga. Kukhazikitsa mwachangu, mafuta opangira mafuta komanso mphamvu yoyambira simenti. Ntchito yomanga matope ndi konkire zosiyanasiyana, kufulumizitsa kuumitsa liwiro la simenti, kufupikitsa kuika nthawi, makamaka yozizira yomanga, kupewa otsika kutentha akhazikike liwiro ndi wodekha kwambiri. Fast demoulding, kotero kuti simenti posachedwapa kusintha mphamvu ntchito. Calcium formate ntchito: mitundu yonse ya matope osakaniza owuma, mitundu yonse ya konkire, zinthu zosavala, mafakitale apansi, mafakitale a chakudya, kufufuta.Calcium formate Kuchuluka kwa dothi louma ndi konkire pa toni imodzi ndi pafupifupi ~%, ndipo kuchuluka kwake ndi %. Kuchuluka kwa calcium formate kumachulukitsidwa pang'onopang'ono ndi kuchepa kwa kutentha, ngakhale kuchuluka kwa 0.3-% kumagwiritsidwa ntchito m'chilimwe, kumakhala kothandiza kwambiri.

Akatenthedwa, mawonekedwe a sodium amawonongeka kukhala haidrojeni ndi sodium oxalate, yomwe imapanga sodium carbonate. Sodium formate imagwiritsidwa ntchito kwambiri popanga inshuwaransi ufa, oxalic acid ndi formic acid. M'makampani achikopa, amagwiritsidwa ntchito ngati asidi pakuwotcha chromium, monga chothandizira komanso chokhazikika chopangira, komanso ngati chochepetsera pantchito yosindikiza ndi utoto. Sodium formate ilibe vuto m'thupi la munthu ndipo imatha kukhumudwitsa maso, kupuma komanso khungu.