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mankhwala

gamma-crotonolactone (CAS#497-23-4)

Chemical Property:

Molecular Formula C4H4O2
Molar Misa 84.07
Kuchulukana 1.185 g/mL pa 25 °C (kuyatsa)
Melting Point 4-5 °C (kuyatsa)
Boling Point 86-87 °C/12 mmHg (kuyatsa)
Pophulikira 214°F
Nambala ya JECFA 2000
Kusungunuka kwamadzi Zosagwirizana ndi madzi.
Kusungunuka Chloroform, Ethyl Acetate (Pang'ono)
Kuthamanga kwa Vapor 0.273mmHg pa 25°C
Maonekedwe Madzi
Mtundu Zowoneka bwino zopanda mtundu mpaka zachikasu kapena amber
Mtengo wa BRN 383585
Mkhalidwe Wosungira 2-8 ° C
Kukhazikika Sichinyezimira
Refractive Index n20/D 1.469(lit.)
Zakuthupi ndi Zamankhwala
kachulukidwe:
1.185

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xi - Zosangalatsa
Zizindikiro Zowopsa 36/37/38 - Zokwiyitsa maso, kupuma komanso khungu.
Kufotokozera Zachitetezo 26 - Mukakumana ndi maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha upangiri wamankhwala.
WGK Germany 3
Mtengo wa RTECS LU3453000
FLUKA BRAND F CODES 8-10
HS kodi 29322980
Zowopsa Zokwiyitsa

 

Mawu Oyamba

γ-crotonyllactone (GBL) ndi organic pawiri. Zotsatirazi ndikuwulula za chilengedwe, kugwiritsa ntchito, njira yopangira ndi chidziwitso cha chitetezo cha GBL:

 

Ubwino:

Maonekedwe: Madzi owoneka bwino opanda mtundu okhala ndi fungo la ethanol.

Kachulukidwe: 1.125 g/cm³

Kusungunuka: Kusungunuka mu zosungunulira zambiri organic, monga madzi, mowa, ether, etc.

 

Gwiritsani ntchito:

Kugwiritsa ntchito mafakitale: GBL imagwiritsidwa ntchito kwambiri ngati surfactant, zosungunulira utoto, zosungunulira utomoni, zosungunulira pulasitiki, kuyeretsa wothandizila, etc.

 

Njira:

GBL ikhoza kupezedwa ndi oxidizing crotonone (1,4-butanol). Njira yeniyeni yokonzekera ndikuchita crotonone ndi mpweya wa chlorine kuti apange 1,4-butanedione, ndiyeno hydrogenate 1,4-butanedione ndi NaOH kuti apange GBL.

 

Zambiri Zachitetezo:

GBL ili ndi mawonekedwe osakhazikika komanso kuyamwa kosavuta kwa khungu ndi mucous nembanemba, ndipo imakhala ndi kawopsedwe kena m'thupi la munthu. Gwiritsani ntchito mosamala.

GBL imatha kukhudza dongosolo lapakati lamanjenje, ndipo kumwa mopitirira muyeso kungayambitse zotsatira zoyipa monga chizungulire, kugona, ndi kufooka kwa minofu. Tsatirani malamulo ndi malangizo oyenera.


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