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mankhwala

sovalericacid (CAS#503-74-2)

Chemical Property:

Molecular Formula C5H10O2
Molar Misa 102.13
Kuchulukana 0.925 g/mL pa 20 °C (kuyatsa)
Melting Point -29 °C (kuyatsa)
Boling Point 175-177 ° C (kuyatsa)
Pophulikira 159°F
Nambala ya JECFA 259
Kusungunuka kwamadzi 25 g/L (20 ºC)
Kusungunuka Kusungunuka mu 24 mbali ya madzi, sungunuka Mowa; ether ndi chloroform.
Kuthamanga kwa Vapor 0.38 mm Hg (20 °C)
Maonekedwe Mandala madzi
Specific Gravity 0.928 (20/20 ℃)
Mtundu Zowoneka bwino zopanda mtundu mpaka zachikasu pang'ono
Merck 14,5231
Mtengo wa BRN 1098522
pKa 4.77 (pa 25 ℃)
PH 3.92(1 mm solution);3.4(10 mm solution);2.89(100 mm solution);
Mkhalidwe Wosungira Sungani pansi +30 ° C.
Zophulika Malire 1.5-6.8% (V)
Refractive Index n20/D 1.403(lit.)
MDL Mtengo wa MFCD00002726
Zakuthupi ndi Zamankhwala Khalidwe: madzi opanda mtundu mandala ndi zosasangalatsa odor.melting mfundo -29.3 ℃

kutentha kwa 176.7 ℃

kachulukidwe wachibale 0.9286

Refractive index 1.4033

BR> kusungunuka: kusungunuka m'madzi. Mosiyana ndi ethanol ndi ether.

Gwiritsani ntchito Pakuti yokonza zonunkhira

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa R34 - Imayambitsa kuyaka
R24 - Pokhudzana ndi khungu
R22 - Zowopsa ngati zitamezedwa
Kufotokozera Zachitetezo S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala.
S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso.
S45 - Pakachitika ngozi kapena ngati simukumva bwino, funsani upangiri wachipatala nthawi yomweyo (onetsani chizindikirocho ngati kuli kotheka.)
S38 - Ngati mulibe mpweya wokwanira, valani zida zoyenera zopumira.
S28A -
Ma ID a UN UN 3265 8/PG 2
WGK Germany 1
Mtengo wa RTECS NY1400000
FLUKA BRAND F CODES 13
TSCA Inde
HS kodi 2915 60 90
Kalasi Yowopsa 6.1
Packing Group III
Poizoni LD50 iv mu mbewa: 1120±30 mg/kg (Kapena, Wretlind)

 

Mawu Oyamba

Isovaleric asidi. Zotsatirazi ndizofotokozera za katundu, ntchito, njira zokonzekera ndi chitetezo cha isovaleric acid:

 

Ubwino:

Maonekedwe: Madzi opanda mtundu kapena achikasu okhala ndi fungo lonunkhira ngati asidi.

Kachulukidwe: 0.94g/cm³

Kusungunuka: Kusungunuka m'madzi, kumatha kukhala kosakanikirana ndi ethanol, etha ndi zosungunulira zina organic.

 

Gwiritsani ntchito:

Kaphatikizidwe: asidi Isovaleric ndi yofunika mankhwala kaphatikizidwe wapakatikati, amene chimagwiritsidwa ntchito m'madera ambiri mafakitale monga kaphatikizidwe organic, mankhwala, zokutira, labala ndi mapulasitiki.

 

Njira:

Kukonzekera kwa isovaleric acid kumaphatikizapo njira zotsatirazi:

Kupyolera mu makutidwe ndi okosijeni wa n-butanol, makutidwe ndi okosijeni wa n-butanol kukhala isovaleric asidi ikuchitika pogwiritsa ntchito acidic chothandizira ndi mpweya.

Magnesium butyrate imapangidwa ndi magnesium butyl bromide yokhala ndi carbon dioxide, yomwe imasinthidwa kukhala isovaleric acid pochita ndi carbon monoxide.

 

Zambiri Zachitetezo:

Isovaleric acid ndi zinthu zowononga, pewani kukhudzana ndi khungu ndi maso, ndipo samalani ndi kugwiritsa ntchito magolovesi oteteza, magalasi otetezera ndi zovala zoteteza.

Mukamagwiritsa ntchito isovaleric acid, kupuma kwa nthunzi yake kuyenera kupewedwa ndipo ntchitoyo iyenera kuchitika pamalo abwino mpweya wabwino.

Malo oyatsira ndi otsika, pewani kukhudzana ndi gwero lamoto, ndipo sungani kutali ndi malawi otseguka ndi magwero a kutentha.

Mukakhala pangozi ya isovaleric acid, yambani mwamsanga ndi madzi ambiri ndikupita kuchipatala.


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