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

Ohun-ini Kemikali:

Fọọmu Molecular	C7H6O3
Molar Mass	138.12
iwuwo	1,46 g / cm3
Ojuami Iyo	214-217℃
Ojuami Boling	336.2°C ni 760 mmHg
Oju filaṣi	171.3°C
Omi Solubility	5 g/L (20℃)
Solubility	Tiotuka diẹ ninu omi, chloroform, tiotuka ni ether, acetone ati benzene, tiotuka ni ethanol ni eyikeyi ipin, o fẹrẹ jẹ insoluble ni disulfide erogba. Tu ni awọn ẹya 125 ti omi tutu.
Vapor Presure	4.48E-05mmHg ni 25°C
Ifarahan	Funfun to Beige Crystalline Powder
Ibi ipamọ Ipo	2-8℃
Ni imọlara	Ifarabalẹ si imọlẹ
Atọka Refractive	1.4600 (iṣiro)
MDL	MFCD00002547
Ti ara ati Kemikali Properties	Awọn ohun-ini ti funfun lulú Crystal, aibikita, odorless, itọwo nigbati ahọn numbness ori tiotuka ninu omi gbona ati oti, ether, acetone, micro-soluble ni omi tutu, benzene, insoluble ni carbon disulfide. Tituka ni awọn ẹya 125 ti omi tutu
Lo	Ni akọkọ bi awọn ohun elo aise ipilẹ ti awọn ọja kemikali to dara, parabens (parabens) bi ounjẹ, oogun ati awọn olutọju ohun ikunra, ti lo ni lilo pupọ, o tun jẹ lilo pupọ ni igbaradi ti ọpọlọpọ awọn awọ, fungicides, fiimu awọ ati ọpọlọpọ epo- tiotuka awọ lara òjíṣẹ, ati be be lo, pẹlu kan jakejado ibiti o ti ohun elo ti titun ga otutu sooro polima P-Hydroxybenzoic acid poliesita tun bi ipilẹ aise ohun elo.

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Alaye ọja

ọja Tags

Awọn aami ewu	Xi - Irritant
Awọn koodu ewu	R36 / 37/38 - Irritating si oju, eto atẹgun ati awọ ara.
Apejuwe Abo	S26 - Ni ọran ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ki o wa imọran iṣoogun. S37 / 39 - Wọ awọn ibọwọ ti o dara ati aabo oju / oju

4-Hydroxybenzoic acidCAS # 99-96-7) ṣafihan
Hydroxybenzoic acid, tun mọ bi p-hydroxybenzoic acid, jẹ ẹya Organic yellow.

Awọn ohun-ini akọkọ rẹ jẹ bi atẹle:

Awọn ohun-ini ti ara: Hydroxybenzoic acid jẹ kirisita funfun tabi die-die ofeefee pẹlu õrùn oorun oorun alailẹgbẹ.

Awọn ohun-ini kemikali: Hydroxybenzoic acid jẹ iyọkufẹ diẹ ninu omi ati tiotuka ninu awọn ọti-lile. O jẹ acid carboxylic acid ti o le ṣe iyọ pẹlu awọn irin. O tun le fesi pẹlu aldehydes tabi ketones, faragba awọn aati condensation, ati ki o dagba ether agbo.

Reactivity: Hydroxybenzoic acid le faragba ifaseyin neutralization pẹlu alkali lati dagba iyọ benzoate. O le kopa ninu ifaseyin esterification labẹ catalysis acid lati ṣe agbejade ester p-hydroxybenzoate. Hydroxybenzoic acid tun jẹ agbedemeji ti awọn olutọsọna idagbasoke ọgbin.

Ohun elo: Hydroxybenzoic acid le ṣee lo lati ṣajọpọ awọn olutọsọna idagbasoke ọgbin, awọn awọ, awọn turari, ati awọn kemikali miiran.

Ti tẹlẹ: Awọn acids ọra, bota (CAS # 85536-27-0)

Itele: Ketone elegede (CAS # 28940-11-6)

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