asia_oju-iwe

ọja

Isobutyric acid (CAS # 79-31-2)

Ohun-ini Kemikali:

Fọọmu Molecular C4H8O2
Molar Mass 88.11
iwuwo 0.95 g/mL ni 25 °C (tan.)
Ojuami Iyo -47°C (tan.)
Ojuami Boling 153-154°C (tan.)
Oju filaṣi 132°F
Nọmba JECFA 253
Omi Solubility 210 g/L (20ºC)
Solubility 618g/l
Vapor Presure 1.5 mm Hg (20 °C)
Òru Òru 3.04 (la afẹfẹ)
Ifarahan Omi
Àwọ̀ Ko ni awọ
Merck 14.5155
BRN 635770
pKa 4.84 (ni iwọn 20 ℃)
PH 3.96 (1 mM ojutu);3.44 (10 mM ojutu);2.93 (100 mM ojutu);
Ibi ipamọ Ipo Fipamọ ni isalẹ + 30 ° C.
ibẹjadi iye to 1.6-7.3% (V)
Atọka Refractive n20/D 1.393(tan.)
Ti ara ati Kemikali Properties Olomi ororo ti ko ni awọ pẹlu õrùn õrùn to lagbara.
yo ojuami -47 ℃
farabale ojuami 154,5 ℃
iwuwo ojulumo 0.949
refractive atọka 1.3930
filasi ojuami 76.67
solubility jẹ miscible pẹlu omi, tiotuka ni ethanol, ether, ati be be lo.
Lo Ni akọkọ ti a lo ninu iṣelọpọ ti awọn ọja ester isobutyric acid, gẹgẹbi methyl, Propyl isobutyrate, isoamyl Ester, benzyl ester, ati bẹbẹ lọ, le ṣee lo bi awọn turari ti o jẹun, ti a tun lo ninu oogun oogun.

Alaye ọja

ọja Tags

Awọn aami ewu Xn – ipalara
Awọn koodu ewu 21/22 - Ipalara ni olubasọrọ pẹlu awọ ara ati ti o ba gbe.
Apejuwe Abo S23 – Maṣe simi oru.
S36 / 37/39 - Wọ aṣọ aabo to dara, awọn ibọwọ ati aabo oju / oju.
S24/25 - Yago fun olubasọrọ pẹlu awọ ara ati oju.
UN ID UN 2529 3/PG 3
WGK Germany 1
RTECS NQ4375000
FLUKA BRAND F koodu 13
TSCA Bẹẹni
HS koodu 29156000
Kíláàsì ewu 3
Iṣakojọpọ Ẹgbẹ III
Oloro LD50 ẹnu ni Ehoro: 266 mg/kg LD50 dermal Ehoro 475 mg/kg

 

Ọrọ Iṣaaju

Isobutyric acid, tun mọ bi 2-methylpropionic acid, jẹ ẹya Organic yellow. Atẹle jẹ ifihan alaye si awọn ohun-ini, awọn lilo, awọn ọna igbaradi ati alaye ailewu ti isobutyric acid:

 

Didara:

Irisi: Omi ti ko ni awọ pẹlu õrùn gbigbo pataki kan.

Ìwọ̀n: 0.985 g/cm³.

Solubility: Tiotuka ninu omi ati ọpọlọpọ awọn olomi Organic.

 

Lo:

Awọn ohun elo: Nitori isobuti o dara, isobutyric acid jẹ lilo pupọ bi epo, paapaa ni awọn kikun, awọn kikun, ati awọn olutọpa.

 

Ọna:

Ọna ti o wọpọ fun igbaradi isobutyric acid ni a gba nipasẹ ifoyina ti butene. Ilana yii jẹ catalyzed nipasẹ ayase ati pe a ṣe ni awọn iwọn otutu giga ati awọn igara.

 

Alaye Abo:

Isobutyric acid jẹ kemikali ibajẹ ti o le fa irritation ati ibajẹ nigbati o ba kan si awọ ara ati oju, ati pe awọn iṣọra ti o yẹ yẹ ki o wọ nigba lilo rẹ.

Ifihan igba pipẹ le fa gbigbẹ, fifọ, ati awọn aati aleji.

Nigbati o ba n tọju ati mimu isobutyric acid, o yẹ ki o wa ni ipamọ kuro ninu ina ti o ṣii ati awọn iwọn otutu giga lati ṣe idiwọ ina ati awọn eewu bugbamu.


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