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Fumaric acid CAS 110-17-8 Chithunzi Chowonetsedwa
  • Fumaric acid CAS 110-17-8 1

Fumaric asidi CAS 110-17-8

Chemical Property:

Molecular Formula C4H4O4
Molar Misa 116.07
Kuchulukana 1.62
Melting Point 298-300 °C (subl.)
Boling Point 137.07°C (kuyerekeza molakwika)
Pophulikira 230 ° C
Nambala ya JECFA 618
Kusungunuka kwamadzi 0.63 g/100 mL (25 ºC)
Kusungunuka Zosungunuka mu DMSO, madzi, zosasungunuka mu zosungunulira zamafuta
Kuthamanga kwa Vapor 1.7 mm Hg (165 °C)
Maonekedwe ufa woyera kapena kristalo wopanda mtundu
Mtundu Choyera
Merck 14,4287
Mtengo wa BRN 605763
pKa 3.02, 4.38 (pa 25 ℃)
PH 3.19(1 mm solution);2.57(10 mm solution);2.03(100 mm solution);
Mkhalidwe Wosungira Sungani pansi +30 ° C.
Kukhazikika Khola kutentha. Imawonongeka pafupifupi 230 C. Zosagwirizana ndi oxidizing amphamvu, zoyambira, zochepetsera. Zoyaka.
Zomverera Mosavuta kuyamwa chinyezi
Zophulika Malire 40%
Refractive Index 1.5260 (chiyerekezo)
MDL Mtengo wa MFCD00002700
Zakuthupi ndi Zamankhwala Makhalidwe a monoclinic wopanda singano ngati singano kapena lobular Crystal, kukoma kowawa kwa zipatso.
kusungunuka: kusungunuka pang'ono m'madzi, etha ndi asidi asidi, kusungunuka mu Mowa. Pafupifupi osasungunuka mu chloroform.
Gwiritsani ntchito Popanga Unsaturated Polyester Resin, mankhwala ophera tizilombo, asidi ndi ma amino acid

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Zizindikiro Zowopsa Xi - Zosangalatsa
Zizindikiro Zowopsa 36 - Zokhumudwitsa m'maso
Kufotokozera Zachitetezo 26 - Mukakumana ndi maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha upangiri wamankhwala.
Ma ID a UN UN 9126
WGK Germany 1
Mtengo wa RTECS LS9625000
TSCA Inde
HS kodi 29171900
Poizoni LD50 pakamwa Kalulu: 9300 mg/kg LD50 dermal Kalulu 20000 mg/kg

 

Mawu Oyamba

Fumaric acid. Zotsatirazi ndizofotokozera za katundu, ntchito, njira zokonzekera ndi chitetezo cha transbutalic acid:

 

Ubwino:

- Transbutadiic acid ndi kristalo wopanda mtundu kapena woyera wolimba wokhala ndi kukoma kowawa kowawa.

- Imasungunuka m'madzi ndi zosungunulira zambiri monga ma alcohols ndi ethers.

- Pa kutentha kwambiri, transbutylic acid amawonongeka kuti apange carbon dioxide ndi acetone.

 

Gwiritsani ntchito:

- Amagwiritsidwa ntchito kwambiri pokonza utomoni wa polyester popanga zinthu monga zokutira, mapulasitiki, ndi ulusi.

 

Njira:

- Transbutenedic asidi akhoza analandira ndi zimene brominated butene ndi sodium carbonate. Njira yeniyeni ya kaphatikizidwe imaphatikizapo masitepe angapo, kuphatikizapo kukonzekera kwa butene, bromination reaction, ndi alkaline hydrolysis.

 

Zambiri Zachitetezo:

- Transbutadiic acid ndi chigawo chokwiyitsa chomwe chingayambitse kupsa mtima ndikuwotcha pokhudzana ndi khungu ndi maso.

- Valani zida zodzitetezera zoyenera monga magolovesi, magalasi, ndi zovala zodzitchinjiriza mukamagwira ntchito.

- Pewani kulowetsa fumbi kapena nthunzi yake ndipo iyenera kugwirira ntchito pamalo olowera mpweya wabwino.

- Malamulo am'deralo ndi njira zoyendetsera ntchito zotetezeka ziyenera kutsatiridwa posunga ndi kusamalira pagulu.

 

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