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4-Heptanolide (CAS#105-21-5)

Ngwongwo kemịkalụ:

Usoro ihe omimi C7H12O2
Molar Mass 128.17
Njupụta 0.999g/mLat 25°C(ọkụ)
Ebe Boling 61-62°C2mm Hg(ọkụ)
Ebe mgbari >230°F
Nọmba JECFA 225
Mmiri Solubility 23g/L na 20 ℃
Uzuoku nrịbama 2.8hPa na 20 ℃
BRN 109569
Ọnọdụ Nchekwa Emechiri ya na nkụ, Okpomọkụ ụlọ
Ntụgharị uche n20/D 1.442 (ọkụ)
Njirimara anụ ahụ na kemịkalụ Mmiri mmiri na-enweghị agba, mmanụ dị ntakịrị. Ọ nwere ísì aki oyibo na ụtọ ụtọ nke malt na caramel. Isi ihe na-esi esi nke 151 deg C, ebe ọkụ ọkụ nke 50 deg C. Miscible na ethanol na ọtụtụ mmanụ ndị na-adịghị agbanwe agbanwe, na-adịghị mma na mmiri. Ngwaahịa eke dị na peach na ihe ndị yiri ya.
Jiri Maka nkwadebe nke ekpomeekpo ịchọ mma kwa ụbọchị, ụtọ ụtaba

Nkọwa ngwaahịa

Mkpado ngwaahịa

Akara egwu Xi - mgbakasị ahụ
Koodu ihe egwu R38 - na-akpasu iwe na akpụkpọ ahụ
R36 / 38 - na-akpasu anya na akpụkpọ ahụ.
Nkọwapụta nchekwa S36 - Yiri uwe nchebe kwesịrị ekwesị.
S37/39 - Yiri uwe aka kwesịrị ekwesị na nchebe anya / ihu
S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike.
WGK Germany 2
RTECS LU3697000
Koodu HS 29322090

 

Okwu mmalite

α-propyl-γ-butyrolactone (nke a makwaara dị ka α-MBC) bụ ihe mgbaze nkịtị. Ọ nwere ọnọdụ mmiri na-enweghị isi na enweghị isi ma nwee ogo dị ala nke evaporation na ụlọ okpomọkụ. Nke a bụ nkọwa gbasara α-propyl-γ-butyrolactone:

 

Ogo:

- α-propyl-γ-butyrolactone nwere ezigbo solubility ma nwee ike igbari ọtụtụ ihe ndị dị ka resins, agba na mkpuchi.

- Lactone a anaghị ere ọkụ, mana ọ nwere ike imepụta gas na-egbu egbu na oke okpomọkụ.

 

Jiri:

A na-eji α-Propyl-γ-butyrolactone eme ihe n'ọtụtụ ebe na usoro nrụpụta ụlọ ọrụ maka ihe mgbaze, ụfụfụ, agba, mkpuchi, nrapado, na ngwaahịa rọba.

 

Usoro:

- α-propyl-γ-butyrolactone na-akwadokarị site na esterification nke γ-butyrolactone. N'ime usoro a, γ-butyrolactone na-emeghachi omume na acetone ma na-agbakwunye oke hydrochloric acid ma ọ bụ sulfuric acid dị ka ihe na-akpali akpali.

 

Ozi nchekwa:

- Mgbe ị na-eji α-propyl-γ-butyrolactone, zere mmekọrịta ogologo oge na akpụkpọ ahụ na ikuku ume nke gas.

- Ekwesịrị ịgbaso usoro nchekwa na ụkpụrụ kwesịrị ekwesị mgbe ị na-echekwa ma na-ejikwa α-propyl-γ-butyrolactone.


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