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huahana

Fumaric acid CAS 110-17-8

Waiwai Kemika:

ʻĀpana Molekala C4H4O4
Molar Mass 116.07
ʻO ka mānoanoa 1.62
Lae hehee 298-300 °C (subl.) (kumu)
Lae Boling 137.07°C (manaʻo koʻikoʻi)
Lae Flash 230 °C
Helu JECFA 618
Hiki i ka wai 0.63 g/100 mL (25 ºC)
Ka hikiwawe Hiki ke hoʻoheheʻe ʻia i ka DMSO, ka wai, ʻaʻole hiki ke hoʻoheheʻe ʻia i nā mea hoʻoheheʻe organik
Puʻupuʻu mahu 1.7 mm Hg ( 165 °C)
Ka nana aku ʻO ka pauka keʻokeʻo a i ʻole ke aniani kala ʻole
kalakala Keʻokeʻo
ʻO Merck 14,4287
BRN 605763
pKa 3.02, 4.38(ma 25 ℃)
PH 3.19(1 mM solution);2.57(10 mM solution);2.03(100 mM solution);
Kūlana Waihona E mālama ʻia ma lalo o +30 ° C.
Paʻa Paʻa ma ka lumi wela. Decomposes ma kahi o 230 C. Incompatible me ka ikaika oxidizing agents, bases, reducing agents. Hiki ke puhi.
Pilikino Hoʻopaʻa maʻalahi i ka makū
Pale Pahū 40%
Hōʻike Hōʻike 1.5260 (manaʻo)
MDL MFCD00002700
Na Waiwai Kino a Kimia ʻO nā hiʻohiʻona o ka monoclinic colorless needle-like a i ʻole lobular Crystal, hua ʻono ʻono.
hiki ke hoʻoheheʻe: hiki ke hoʻoheheʻe iki ʻia i ka wai, etera a me ka ʻakika acetic, hiki ke hoʻoheheʻe ʻia i ka ethanol. Aneane hiki ole ke hooheheeia i ka chloroform.
Hoʻohana No ka hana ʻana i ka Unsaturated Polyester Resin, pesticides, acid a me nā waikawa amino

Huahana Huahana

Huahana Huahana

Nā hōʻailona pōʻino Xi – Hoʻohaunaele
Nā Code Risk 36 - Hoʻonāukiuki i nā maka
Ka wehewehe palekana 26 - Inā pili me nā maka, holoi koke me ka wai nui a ʻimi i ka ʻōlelo aʻoaʻo olakino.
UN ID UN 9126
WGK Kelemānia 1
RTECS LS9625000
TSCA ʻAe
HS Code 29171900
Kaʻawaʻawa LD50 ma ka waha i ka Lapiti: 9300 mg/kg LD50 dermal Rabbit 20000 mg/kg

 

Hoʻolauna

ʻakika fumaric. ʻO kēia ka hoʻolauna ʻana i nā waiwai, hoʻohana, nā ʻano hoʻomākaukau a me ka ʻike palekana o ka transbutalic acid:

 

ʻAno maikaʻi:

- ʻO ka waikona Transbutadiic kahi aniani kala ʻole a i ʻole keʻokeʻo paʻa me ka ʻono ʻawaʻawa.

- Hiki ke hoʻoheheʻe ʻia i loko o ka wai a me nā mea hoʻoheheʻe kūlohelohe e like me nā ʻona a me nā ethers.

- I nā wela kiʻekiʻe, wāwahi ʻia ka waika transbutylic e hana i ka carbon dioxide a me ka acetone.

 

E hoʻohana:

- Hoʻohana nui ʻia i ka hoʻomākaukau ʻana i nā resins polyester no ka hana ʻana i nā huahana e like me nā uhi, plastics, a me nā fibers.

 

Hanana:

- Hiki ke loaʻa ka waikawa Transbutenedic ma ka hopena o ka butene brominated a me ka sodium carbonate. ʻO ke ʻano hana synthesis kikoʻī e pili ana i nā ʻanuʻu he nui, me ka hoʻomākaukau ʻana i ka butene, ka hopena bromination, a me ka hydrolysis alkaline.

 

ʻIke palekana:

- ʻO ka waika Transbutadiic kahi mea hoʻonāukiuki e hoʻoulu ai i ka huhū a me ka wela i ka pilina me ka ʻili a me nā maka.

- E hoʻohana i nā mea pale pilikino kūpono e like me nā mīkina lima, nā aniani, a me nā lole pale i ka wā e lawelawe ai.

- Hōʻalo i ka hanu ʻana i kona lepo a i ʻole nā ​​​​huhū a pono e hana ma kahi wahi e hoʻoheheʻe maikaʻi ʻia.

- Pono e mālama ʻia nā hoʻoponopono kūloko a me nā kaʻina hana palekana i ka wā e mālama ai a mālama i ka pūhui.

 


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