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I-Fumaric acid CAS 110-17-8 Umfanekiso obonakalayo
  • I-Fumaric acid CAS 110-17-8 1

I-Fumaric acid CAS 110-17-8

Ipropati yeMichiza:

Ifomula yeemolekyuli C4H4O4
IMisa yeMolar 116.07
Ukuxinana 1.62
Indawo yokunyibilika 298-300 °C (subl.) (lit.)
Indawo yeBoling 137.07°C (uqikelelo olurhabaxa)
Indawo yokuflasha 230 °C
Inombolo yeJECFA 618
Ukunyibilika kwamanzi 0.63 g/100 mL (25 ºC)
Ukunyibilika Inyibilika kwi-DMSO, amanzi, ayinyibiliki kwi-soluble organic solvents
Uxinzelelo loMphunga 1.7 mm Hg ( 165 °C)
Imbonakalo Umgubo omhlophe okanye ikristale engenambala
Umbala Mhlophe
Merck 14,4287
I-BRN 605763
pKa 3.02, 4.38(nge-25℃)
PH 3.19(1 mM isisombululo);2.57(10 mM isisombululo);2.03(100 mM isisombululo);
Imeko yoGcino Gcina ngaphantsi +30°C.
Uzinzo Izinzile kwiqondo lokushisa. Ukubola malunga ne-230 C. Ayihambelani ne-oxidizing agents enamandla, iziseko, ii-agent zokunciphisa. Ukutsha.
Inovakalelo Ukufunxa ngokulula ukufuma
Umda wokuqhushumba 40%
Refractive Index 1.5260 (uqikelelo)
MDL MFCD00002700
IiPropati zoMzimba kunye nezeMichiza Iimpawu zemonoclinic engenambala njengenaliti okanye i-lobular Crystal, incasa emuncu yesiqhamo.
ukunyibilika: ukunyibilika kancinane emanzini, i-ether kunye ne-acetic acid, enyibilikayo kwi-ethanol. Phantse ayinyibiliki kwiklorofomu.
Sebenzisa Ukwenza i-Unsaturated Polyester Resin, izibulali zinambuzane, i-asidi kunye ne-amino acids

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu ezinobungozi Xi – Irritant
Iikhowudi zoMngcipheko 36 – Ukucaphukisa emehlweni
Inkcazelo yoKhuseleko I-26 - Kwimeko yokunxibelelana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
Izazisi ze-UN UN 9126
WGK eJamani 1
RTECS LS9625000
I-TSCA Ewe
Ikhowudi ye-HS 29171900
Ubutyhefu LD50 ngomlomo kuMvundla: 9300 mg/kg LD50 dermal Rabbit 20000 mg/kg

 

Intshayelelo

I-Fumaric acid. Oku kulandelayo kukwazisa kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwe-transbutalic acid:

 

Umgangatho:

- I-Transbutadiic acid yikristale engenambala okanye emhlophe eqinileyo kunye nencasa emuncu ekrakra.

-Inyibilika emanzini kunye nezinyibilikisi ezininzi zezinto eziphilayo ezifana neealkoholi kunye ne-ethers.

- Kwiqondo lokushisa eliphezulu, i-transbutylic acid iyaphuka ukuze ivelise i-carbon dioxide kunye ne-acetone.

 

Sebenzisa:

- Isetyenziswa kakhulu ekulungiseleleni i-polyester resins ukwenza iimveliso ezinje ngezogquma, iiplastiki kunye nemicu.

 

Indlela:

- I-asidi ye-Transbutenedic inokufumaneka ngokuphendula kwe-brominated butene kunye ne-sodium carbonate. Indlela ethile yokudibanisa ibandakanya amanyathelo amaninzi, kubandakanywa ukulungiswa kwe-butene, i-bromination reaction, kunye ne-alkaline hydrolysis.

 

Ulwazi ngoKhuseleko:

- I-Transbutadiic acid yi-compound ecasulayo enokubangela ukucaphuka kunye nokutshisa ngokudibana nolusu kunye namehlo.

- Nxiba izixhobo ezifanelekileyo zokuzikhusela ezifana neeglavu, iiglasi, kunye nempahla yokukhusela ngexesha lokuphatha.

• Kuphephe ukuphefumla uthuli okanye umphunga kwaye kufuneka usebenze kwindawo engena umoya.

- Imimiselo yendawo kunye neenkqubo zokusebenza ezikhuselekileyo kufuneka zilandelwe xa kugcinwa kunye nokuphatha i-compound.

 

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