Sovalericacid (CAS # 503-74-2)

Chemical Property:

Molecular Formula	C5H10O2
Molar Mass	102.13 Nws
Qhov ntom	0.925 g / mL ntawm 20 ° C (lit.)
Melting Point	-29 ° C (lit.)
Boling Point	175-177 ° C (lit.)
Flash Point	159 ° F
JECFA Number	259
Dej Solubility	25 g / L (20 ºC)
Solubility	Soluble nyob rau hauv 24 qhov chaw ntawm dej, soluble nyob rau hauv ethanol; ether thiab chloroform.
Vapor Siab	0.38 hli Hg (20 ° C)
Qhov tshwm sim	Pob tshab kua
Specific Gravity	0.928 (20/20 ℃)
Xim	Ntshiab xim tsis muaj xim kom daj me ntsis
Merck	14 Ib., 5231
BRN	1098522 ib
pKa	4.77 (ntawm 25 ℃)
PH	3.92 (1 mM tov); 3.4 (10 mM tov); 2.89 (100 mM tov);
Kev cia khoom	Khaws hauv qab +30 ° C.
Explosive txwv	1.5-6.8% (V)
Refractive Index	n20/D 1.403 (lit.)
MDL	PAB 00002726
Physical thiab Chemical Properties	Cwj pwm: tsis muaj xim tsis muaj pob tshab kua nrog tsw ntxhiab tsw.melting point -29.3 ℃ Kub taw tes 176.7 ℃ txheeb ze ntom ntom 0.9286 Refractive Index 1.4033 BR> solubility: soluble hauv dej. Miscible nrog ethanol thiab ether.
Siv	Rau kev npaj ntawm txuj lom

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Khoom cim npe

Risk Codes	R34 - Ua rau kub hnyiab R24 - Toxic nyob rau hauv kev sib cuag nrog daim tawv nqaij R22 - Ua phem yog tias nqos
Kev nyab xeeb piav qhia	S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S38 - Yog tias qhov cua tsis txaus, hnav cov khoom ua pa uas tsim nyog. S28A -
UN IDs	UN 3265 8/PG 2
WGK Germany	1
RTECS	NY 1400 000
FLUKA BRAND F CODE	13
TSCA	Yog lawm
HS Code	29156090 ib
Hazard Class	6.1
Packing Group	III
Toxicity	LD50 iv nyob rau hauv nas: 1120 ± 30 mg / kg (los yog Wretlind)

Taw qhia

Isovaleric acid. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm isovaleric acid:

Zoo:

Cov tsos mob: Cov kua tsis muaj xim lossis daj daj nrog cov ntxhiab tsw zoo ib yam li acetic acid.

Qhov ceev: 0.94g / cm³

Solubility: soluble nyob rau hauv dej, kuj yuav miscible nrog ethanol, ether thiab lwm yam organic solvents.

Siv:

Synthesis: Isovaleric acid yog ib qho tseem ceeb ntawm cov tshuaj synthesis intermediate, uas yog dav siv nyob rau hauv ntau yam kev lag luam xws li organic synthesis, tshuaj, coatings, roj hmab thiab yas.

Txoj kev:

Txoj kev npaj ntawm isovaleric acid suav nrog cov hauv qab no:

Los ntawm oxidation cov tshuaj tiv thaiv ntawm n-butanol, oxidation ntawm n-butanol rau isovaleric acid yog nqa tawm siv cov kua qaub catalyst thiab oxygen.

Magnesium butyrate yog tsim los ntawm cov tshuaj tiv thaiv ntawm magnesium butyl bromide nrog carbon dioxide, uas tom qab ntawd hloov mus rau isovaleric acid los ntawm cov tshuaj tiv thaiv nrog carbon monoxide.

Cov ntaub ntawv kev nyab xeeb:

Isovaleric acid yog cov khoom siv corrosive, zam kev sib cuag nrog cov tawv nqaij thiab qhov muag, thiab xyuam xim rau kev siv cov hnab looj tes tiv thaiv, tsom iav kev nyab xeeb thiab khaub ncaws tiv thaiv.

Thaum siv isovaleric acid, kev nqus ntawm nws cov vapors yuav tsum tau zam thiab kev ua haujlwm yuav tsum tau ua nyob rau hauv ib qho chaw zoo-ventilated.

Lub ignition point yog tsawg, tsis txhob sib cuag nrog qhov hluav taws kub qhov chaw, thiab cia kom deb ntawm qhov qhib nplaim taws thiab cua sov qhov chaw.

Nyob rau hauv rooj plaub ntawm kev raug mob rau isovaleric acid, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.

Yav dhau los: Methyl p-tert-butylphenylacetate (CAS # 3549-23-3)

Tom ntej: Diethylsuccinate (CAS # 123-25-1)

Sau koj cov lus ntawm no thiab xa tuaj rau peb