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4-Hydroxybenzoic acid(CAS#99-96-7) Isithombe Esifakiwe
  • 4-Hydroxybenzoic acid(CAS#99-96-7) 1

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

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C7H6O3
I-Molar Mass 138.12
Ukuminyana 1,46 g/cm3
I-Melting Point 214-217 ℃
I-Boling Point 336.2°C ku-760 mmHg
I-Flash Point 171.3°C
Ukuncibilika kwamanzi 5 g/L (20℃)
Ukuncibilika Incibilika kancane emanzini, i-chloroform, i-ether, i-acetone ne-benzene, incibilika ku-ethanol nganoma iyiphi ingxenye, cishe ayincibiliki ku-carbon disulfide. Chaza ezingxenyeni ezingu-125 zamanzi abandayo.
I-Vapor Presure 4.48E-05mmHg ku-25°C
Ukubukeka I-Crystalline Powder emhlophe iye ku-Beige
Isimo Sesitoreji 2-8℃
Kuyazwela Kuyazwela ekukhanyeni
I-Refractive Index 1.4600 (isilinganiso)
I-MDL I-MFCD00002547
Izakhiwo Zomzimba Nezamakhemikhali Izici zempushana emhlophe Ikristalu, ayinambitheki, ayinaphunga, inambitheka lapho ulimi luzwa ukuba ndikindiki
I-soluble emanzini ashisayo notshwala, i-ether, i-acetone, i-micro-soluble emanzini abandayo, i-benzene, engancibiliki ku-carbon disulfide. Incibilike ezingxenyeni ezingu-125 zamanzi abandayo
Sebenzisa Ikakhulukazi njengezinto zokusetshenziswa eziyisisekelo zemikhiqizo yamakhemikhali amahle, ama-parabens (ama-parabens) njengokudla, imithi kanye nezilondolozi zezimonyo, sekusetshenziswe kabanzi, futhi isetshenziswa kabanzi ekulungiseni odayi abahlukahlukene, ama-fungicides, ifilimu yombala kanye nezinhlobonhlobo zamafutha- ama-ejenti abumba umbala ancibilikayo, njll., anezinhlobonhlobo zokusetshenziswa kwe-polymer entsha ye-P-Hydroxybenzoic acid evikela ukushisa okuphezulu futhi njengento eyisisekelo eluhlaza.

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izimpawu Eziyingozi Xi - Irritant
Amakhodi Engozi R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
Incazelo Yokuphepha S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
I-S37/39 – Gqoka amagilavu ​​afanelekile kanye nokuvikela iso/ubuso

 

 

4-Hydroxybenzoic acid (I-CAS#99-96-7)thula
I-Hydroxybenzoic acid, eyaziwa nangokuthi i-p-hydroxybenzoic acid, iyinhlanganisela yezinto eziphilayo.

Izici zayo eziyinhloko zimi kanje:

Izinto ezibonakalayo: I-Hydroxybenzoic acid iyikristalu emhlophe noma ephuzi kancane enephunga elimnandi eliyingqayizivele.

Izakhiwo zamakhemikhali: I-Hydroxybenzoic acid incibilika kancane emanzini futhi inyibilika otshwaleni. Kuyi-acidic carboxylic acid engakha usawoti ngezinsimbi. Ingase futhi isabelane nama-aldehydes noma ama-ketone, ibhekane nokusabela kwe-condensation, futhi yakhe izinhlanganisela ze-ether.

Ukusebenza kabusha: I-Hydroxybenzoic acid ingaba ne-neutralization reaction nge-alkali ukuze yakhe usawoti we-benzoate. Ingabamba iqhaza ekuphenduleni kwe-esterification ngaphansi kwe-acid catalysis ukuze ikhiqize i-p-hydroxybenzoate ester. I-Hydroxybenzoic acid nayo iyisilawuli sokukhula kwezitshalo.

Isicelo: I-Hydroxybenzoic acid ingasetshenziswa ukuze kuhlanganiswe izilawuli zokukhula kwezitshalo, odayi, amakha, namanye amakhemikhali.

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