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ngwaahịa

2-Methyl butyric acid (CAS#116-53-0)

Ngwongwo kemịkalụ:

Usoro ihe omimi C5H10O2
Molar Mass 102.13
Njupụta 0.936 g/mL na 25 Celsius (ọkụ)
Ebe Na-agbaze -70 Celsius
Ebe Boling 176-177 Celsius C (ọkụ)
Ebe mgbari 165°F
Nọmba JECFA 255
Mmiri Solubility 45 g/L (20ºC)
Solubility 20g/l
Uzuoku nrịbama 0.5 mm Hg (20 Celsius C)
Ọdịdị Mmiri mmiri
Agba Kpochapụ enweghị ụcha na odo odo
BRN 1720486
pKa 4.8 (na 25 ℃)
Ọnọdụ Nchekwa Emechiri ya na nkụ, Okpomọkụ ụlọ
Oke ihe mgbawa 1.6-7.3% (V)
Ntụgharị uche n20/D 1.405 (ọkụ)
Njirimara anụ ahụ na kemịkalụ E nwere atọ isomers d-, l-na dl-, enweghị colorless na ìhè odo mmiri mmiri, a pungent ewu chiiz isi, obere ịta nke obi ụtọ mkpụrụ osisi, uto nke octonic. Ihe na-esi ísì ụtọ bụ 176 ℃ (dl-), l-ụdị 176 ~ 177 ℃, dl - Ụdị 173 ~ 174 ℃. Ụdị njupụta d na l (d420) 0.934, dl ụdị (d420) 0.9332. Ntụgharị ntụgharị uche Ụdị d (nD21.2)1.4044. Ụdị ntụgharị anya d ụdị [α] D 16 ° ~ 21 °, ụdị l [α] D-6 ° ~ -18 °, ebe ọkụ 83 ℃. Na-agbaze ntakịrị na mmiri na glycerol, soluble na ethanol na propylene glycol. Ngwaahịa sitere n'okike (Ụdị d) dị n'ụdị ester na mmanụ lavender, na ụdị dl dị na kọfị na mgbọrọgwụ angelica, wdg.
Jiri Maka nkwadebe nri, ụtaba na ụtọ kwa ụbọchị

Nkọwa ngwaahịa

Mkpado ngwaahịa

Akara egwu C - Na-emebi emebi
Koodu ihe egwu R21/22 - na-emerụ ahụ na kọntaktị na akpụkpọ ahụ ma ọ bụrụ na eloro ya.
R34 - Na-akpata ọkụ
Nkọwapụta nchekwa S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike.
S36 / 37/39 - Yiri uwe nchebe kwesịrị ekwesị, uwe aka na nchebe anya / ihu.
S45 - Ọ bụrụ na ihe mberede ma ọ bụ ọ bụrụ na ahụ adịghị gị mma, chọọ ndụmọdụ ahụike ozugbo (gosi akara ahụ mgbe ọ bụla enwere ike.)
NJ UN UN 3265 8/PG 3
WGK Germany 1
RTECS EK7897000
FLUKA BRAND F CODES 13
TSCA Ee
Koodu HS 29156090
Klas Hazard 8
Otu nkwakọ ngwaahịa III

 

Okwu mmalite

2-Methylbutyric acid. Ihe na-esonụ bụ mmalite nke Njirimara, ojiji, ụzọ nkwadebe na ozi nchekwa nke 2-methylbutyric acid:

 

Ogo:

Ọdịdị: 2-methylbutyric acid bụ mmiri mmiri na-enweghị agba ma ọ bụ kristal.

Njupụta: ihe ruru. 0.92 g/cm³.

Solubility: 2-methylbutyric acid na-agbaze n'ime mmiri.

 

Jiri:

Enwere ike iji ya dị ka ihe mgbaze maka resins, plasticizers maka plastik, na ihe mgbaze maka mkpuchi.

2-Methylbutyric acid nwekwara ike iji na nkwadebe nke metal nchara inhibitors na agba mgbaze.

 

Usoro:

Usoro nkwadebe nke 2-methylbutyric acid bụ tumadi dị ka ndị a:

A na-akwado ya site na mmeghachi omume oxidation nke ethanol.

Kwadoro site na mmeghachi omume oxidation nke 2-methacryrolen.

 

Ozi nchekwa:

2-Methylbutyric acid na-agbakasị ahụ ma nwee ike ịkpata mgbakasị ahụ na erythema mgbe ọ na-akpakọrịta na akpụkpọ ahụ, a ga-ezere kọntaktị ozugbo na akpụkpọ ahụ.

Ikuku nke 2-methylbutyric acid vapor nwere ike ime ka akpịrị kpasuo ya iwe, mgbakasị iku ume, na ụkwara, na ekwesịrị itinye uche na ikuku ikuku na nchedo onwe onye.

Mgbe a na-eji ya eme ihe, a ga-ezere kọntaktị na oxidants siri ike na combustible iji gbochie mmeghachi omume dị ize ndụ.

Mgbe ị na-echekwa ma na-ejikwa ya, ekwesịrị izere ịma jijiji na oke okpomọkụ.

 


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