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hua

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

Āhuatanga matū:

Tātai rāpoi C4H4O2
Molar Mass 84.07
Kiato 1.185 g/mL i te 25 °C (marama)
Te Whakarewa 4-5 °C (marama)
Piro Pouri 86-87 °C/12 mmHg (marama)
Tohu Kohiko 214°F
Nama JECFA 2000
Wairewa wai Kare e taea ki te wai.
Wairewa Chloroform, Ethyl Acetate (Paariki)
Kohu Kohu 0.273mmHg i te 25°C
Te ahua Waiwai
Tae He maama kore tae ki te kowhai kowhai, he amipere ranei
BRN 383585
Tikanga Rokiroki 2-8°C
Te pumau Makuku Tairongo
Taurangi Refactive n20/D 1.469(marama)
Āhuatanga ā-tinana, matū hoki
kiato:
1.185

Taipitopito Hua

Tohu Hua

Nga Tohu Whakamate Xi – Irritant
Waehere Morearea 36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri.
Whakaahuatanga Haumaru 26 – Ki te pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora.
WGK Tiamana 3
RTECS LU3453000
FLUKA BRAND F CODES 8-10
Waehere HS 29322980
Tuhipoka morearea Whakariri

 

Kupu Whakataki

Ko te γ-crotonyllactone (GBL) he pūhui waro. E whai ake nei he kupu whakataki mo te ahua, te whakamahinga, te tikanga whakangao me nga korero haumaru o GBL:

 

Kounga:

Te ahua: Te wai marama kore tae me te haunga rite te waihano.

Kiato: 1.125 g/cm³

Wairewa: Ka whakarewahia i roto i te maha o nga whakarewa pararopi, penei i te wai, te waipiro, te etera, me era atu.

 

Whakamahia:

Te whakamahi Ahumahi: Kei te whakamahia nuitia te GBL hei surfactant, waikano whakarewa, kapia whakarewa, whakarewa kirihou, horoi horoi, aha atu.

 

Tikanga:

Ka taea te whiwhi GBL ma te oxidizing crotonone (1,4-butanol). Ko te tikanga whakarite motuhake ko te tauhohe i te crotonone me te hau maatai ​​hei whakaputa i te 1,4-butanedione, katahi ka whakawaiwai i te 1,4-butanedione me te NaOH hei whakaputa GBL.

 

Mōhiohio Haumaru:

Kei a GBL nga ahuatanga o te pähekeheke teitei me te ngawari o te whakauru o te kiri me nga kiriuhi mucous, a he paitini ki te tinana o te tangata. Whakamahia me te tupato.

Ka pa pea te GBL ki te punaha nerve matua, a, ko te nui o te horopeta ka pa ki nga paanga kino penei i te mangere, te moe, me te ngoikore o te uaua. Kia mau ki nga ture me nga ture e tika ana.


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