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4-Hydroxybenzoic acid(CAS#99-96-7) Chithunzi Chowonetsedwa
  • 4-Hydroxybenzoic acid(CAS#99-96-7) 1

4-Hydroxybenzoic acid(CAS#99-96-7)

Chemical Property:

Molecular Formula C7H6O3
Misa ya Molar 138.12
Kuchulukana 1,46g/cm3
Melting Point 214-217 ℃
Boling Point 336.2 ° C pa 760 mmHg
Pophulikira 171.3°C
Kusungunuka kwamadzi 5 g/L (20 ℃)
Kusungunuka Kusungunuka pang'ono m'madzi, chloroform, sungunuka mu ether, acetone ndi benzene, sungunuka mu Mowa mu gawo lililonse, pafupifupi osasungunuka mu carbon disulfide. Sungunulani mu magawo 125 a madzi ozizira.
Kuthamanga kwa Vapor 4.48E-05mmHg pa 25°C
Maonekedwe Ufa Woyera mpaka Beige Crystalline
Mkhalidwe Wosungira 2-8 ℃
Zomverera Zomverera ndi kuwala
Refractive Index 1.4600 (chiyerekezo)
MDL Mtengo wa MFCD00002547
Zakuthupi ndi Zamankhwala Katundu woyera ufa Crystal, zoipa, fungo, kulawa pamene dzanzi lilime
sungunuka m'madzi otentha ndi mowa, ether, acetone, micro-sungunuka m'madzi ozizira, benzene, osasungunuka mu carbon disulfide. Kusungunuka mu 125 mbali madzi ozizira
Gwiritsani ntchito Makamaka monga zopangira zopangira mankhwala abwino, ma parabens (parabens) monga chakudya, mankhwala ndi zodzikongoletsera, amagwiritsidwa ntchito kwambiri, amagwiritsidwanso ntchito kwambiri popanga utoto wosiyanasiyana, fungicides, filimu yamitundu ndi mafuta osiyanasiyana- sungunuka mtundu kupanga wothandizila, etc., ndi osiyanasiyana ntchito atsopano kutentha kugonjetsedwa polima P-Hydroxybenzoic asidi poliyesitala komanso ngati zofunika zopangira.

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xi - Zosangalatsa
Zizindikiro Zowopsa R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
Kufotokozera Zachitetezo S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
S37/39 - Valani magolovesi oyenera komanso chitetezo chamaso / kumaso

 

 

4-Hydroxybenzoic acid (CAS#99-96-7) fotokozani
Hydroxybenzoic acid, yomwe imadziwikanso kuti p-hydroxybenzoic acid, ndi organic pawiri.

Makhalidwe ake akuluakulu ndi awa:

Thupi: Hydroxybenzoic acid ndi galasi loyera kapena lachikasu pang'ono lokhala ndi fungo lonunkhira lapadera.

Chemical properties: Hydroxybenzoic acid imasungunuka pang'ono m'madzi ndi kusungunuka mu mowa. Ndi acidic carboxylic acid yomwe imatha kupanga mchere ndi zitsulo. Imathanso kuchitapo kanthu ndi ma aldehydes kapena ma ketoni, kukhala ndi ma condensation reaction, ndikupanga ma ether compounds.

Reactivity: Hydroxybenzoic acid ikhoza kulowa mu neutralization reaction ndi alkali kupanga mchere wa benzoate. Ikhoza kutenga nawo mbali mu esterification reaction pansi pa asidi catalysis kupanga p-hydroxybenzoate ester. Hydroxybenzoic acid ndi gawo lapakati la zowongolera zakukula kwa zomera.

Kugwiritsa ntchito: Hydroxybenzoic acid angagwiritsidwe ntchito kupanga zowongolera kukula kwa mbewu, utoto, zonunkhira, ndi mankhwala ena.

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