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

Meatotino tau vailaau:

Fuafua mole C7H6O3
Molar Mass 138.12
Malosi 1,46 g/cm3
Lisi Lisi 214-217 ℃
Manu'a 336.2°C ile 760 mmHg
Mata'imu 171.3°C
Suavai Solubility 5 g/L (20 ℃)
Solubility Laititi soluble i le vai, chloroform, soluble i eter, acetone ma benzene, soluble i ethanol i so'o se vaega, toetoe lava a le mafai ona solu i le carbon disulfide. Fa'amuta ile 125 vaega ole vai malulu.
Ausa Malo 4.48E-05mmHg ile 25°C
Fa'aaliga Pa'epa'e i le Beige Crystalline Pa'u
Tulaga Teuteu 2-8 ℃
Ma'ale'ale Ma'ale'ale i le malamalama
Fa'asino Upu 1.4600 (fa'atatau)
MDL MFCD00002547
Meatotino Faaletino ma Vailaau Meatotino o le pauta pa'epa'e Crystal, leai se tofo, leai se manogi, tofo pe a fa'alogoina le laulaufaiva
soluble i le vai vevela ma le ava malosi, eter, acetone, micro-soluble i le vai malulu, benzene, insoluble i carbon disulfide. Fa'amuta ile 125 vaega ole vai malulu
Fa'aoga Aemaise lava e pei o mea masani mata o oloa vailaʻau lelei, parabens (parabens) e pei o meaai, vailaau ma cosmetics preservatives, ua faʻaaogaina lautele, e faʻaaogaina lautele foi i le sauniuniga o vali eseese, fungicides, ata lanu ma le tele o suauu- soluble lanu fai sooupu, ma isi, faatasi ai ma le tele o le tele o talosaga o fou maualuga vevela tetee polymer P-Hydroxybenzoic acid polyester foi e avea o se mea mata.

Fa'amatalaga Oloa

Faailoga o oloa

Fa'ailoga Mata'utia Xi – Irita
Tulaga lamatia R36/37/38 – Fa'aitaita'i i mata, faiga manava ma le pa'u.
Fa'amatalaga Saogalemu S26 – Pe a pa'i i mata, fufulu vave i le tele o vai ma saili fautuaga fa'afoma'i.
S37/39 – Fai totigilima talafeagai ma le puipuiga o mata/mata

 

 

4-Hydroxybenzoic acid(CAS#99-96-7) faailoa atu
O le hydroxybenzoic acid, lea e lauiloa foi o le p-hydroxybenzoic acid, o se mea faʻapipiʻi.

O ona meatotino autu e faapea:

Meatotino fa'aletino: Hydroxybenzoic acid o se tioata pa'epa'e pe la'ititi samasama ma se manogi manogi uiga ese.

Mea tau vaila'au: Hydroxybenzoic acid e solu teisi i le vai ma solu ile ava malosi. O se acidic carboxylic acid e mafai ona fausia masima ma metala. E mafai foi ona tali atu i aldehydes poʻo ketones, faʻafefete faʻafefe, ma faʻapipiʻi eter.

Gaoioiga: Hydroxybenzoic acid e mafai ona o'o i le fa'a'au'au fa'atasi ma le alkali e fai ai masima benzoate. E mafai ona auai i le esterification tali i lalo o le acid catalysis e gaosia p-hydroxybenzoate ester. O le hydroxybenzoic acid o se vaeluagalemu o le faʻatonutonuina o le tuputupu aʻe o laʻau.

Fa'aaogāina: E mafai ona fa'aogaina le vaila'au o le Hydroxybenzoic e fa'apipi'i ai fa'atonuga o le tuputupu a'e o la'au, vali, mea manogi, ma isi vaila'au.


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