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4-Hydroxybenzoic acid(CAS#99-96-7) Setšoantšo se Hlahisitsoeng
  • 4-Hydroxybenzoic acid(CAS#99-96-7) 1

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

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C7H6O3
'Misa oa Molar 138.12
Botenya 1,46 g/cm3
Melting Point 214-217 ℃
Boling Point 336.2°C ho 760 mmHg
Flash point 171.3°C
Ho qhibiliha ha Metsi 5 g/L (20℃)
Solubility E qhibiliha hanyane ka metsing, chloroform, e qhibiliha ka har'a ether, acetone le benzene, e qhibiliha ka har'a ethanol ka tekanyo efe kapa efe, e batla e sa qhibilihe ka har'a carbon disulfide. Qhala ka likarolo tse 125 tsa metsi a batang.
Khatello ea Mouoane 4.48E-05mmHg ho 25°C
Ponahalo Bosoeu ho isa ho Beige Crystalline Powder
Boemo ba polokelo 2-8℃
E hloahloa E utloang khanya
Refractive Index 1.4600 (khakanyo)
MDL MFCD00002547
Thepa ea 'Mele le ea Lik'hemik'hale Thepa ea phofo e tšoeu Crystal, e sa latsoeheng, e sa nkheng, tatso ha leleme le utloa bohatsu
qhibilihang ka metsing a chesang le joala, ether, acetone, e qhibilihang ka har'a metsi a batang, benzene, ha e qhibilihe ka har'a carbon disulfide. Qhiloe ka likarolo tse 125 tsa metsi a batang
Sebelisa Haholo-holo e le lisebelisoa tsa mantlha tsa lihlahisoa tse ntle tsa lik'hemik'hale, li-parabens (parabens) e le li-preservatives tsa lijo, meriana le litlolo, li 'nile tsa sebelisoa haholo, hape li sebelisoa haholo ha ho etsoa lidae tse fapa-fapaneng, li-fungicides, filimi ea mebala le mefuta e fapaneng ea oli- soluble color forming agents, joalo-joalo, ka mefuta e mengata ea lisebelisoa tsa polymer e ncha e hanyetsanang le mocheso o phahameng oa P-Hydroxybenzoic acid hape e le thepa ea motheo e tala.

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Matšoao a Kotsi Xi - Ea halefisang
Likhoutu tsa Kotsi R36/37/38 – Ho tena mahlo, tsamaiso ya ho hema le letlalo.
Tlhaloso ea Tšireletseho S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka.
S37/39 - Apara liatlana tse loketseng le tšireletso ea mahlo / sefahleho

 

 

4-Hydroxybenzoic acid (CAS#99-96-7) tsebisa
Hydroxybenzoic acid, eo hape e tsejoang e le p-hydroxybenzoic acid, ke motsoako oa manyolo.

Lintho tsa eona tse ka sehloohong ke tse latelang:

Sebopeho sa 'mele: Hydroxybenzoic acid ke kristale e tšoeu kapa e mosehla hanyane e nang le monko o ikhethang.

Lintho tsa lik'hemik'hale: Hydroxybenzoic acid e qhibiliha hanyane ka metsing 'me e qhibiliha ka har'a tai. Ke acidic carboxylic acid e ka etsang matsoai ka tšepe. E ka boela ea itšoara ka aldehydes kapa ketones, ea ba le maikutlo a condensation, 'me ea etsa metsoako ea ether.

Reactivity: Hydroxybenzoic acid e ka kena ka har'a mokhoa oa ho se nke lehlakore ka alkali ho etsa letsoai la benzoate. E ka nka karolo ho esterification reaction tlasa catalysis ea asiti ho hlahisa p-hydroxybenzoate ester. Hydroxybenzoic acid e boetse e le karolo e bohareng ea taolo ea kholo ea limela.

Tšebeliso: Hydroxybenzoic acid e ka sebelisoa ho kopanya lilaoli tsa kholo ea limela, lidae, litlolo tse nkhang hamonate le lik'hemik'hale tse ling.

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