Iasidi yeFumaric ingasetyenziswa njengokulawula ubumuncu

I-Fumaric acid, eyaziwa ngokuba yi-fumaric acid, i-violet acid okanye i-lichenic acid, ebizwa ngokuba yi-fumaric acid (igama le-IUPAC (igama le-IUPAC (E) -butenedioic acid), yikristale engenambala, enokutsha ehlanganiswe ne-Carboxylic acids ephuma kwi-butene. Ukutshisa iasidi ye-fumaric ikhupha umsi ocaphukisayo we-maleic anhydride. Inencasa njengesiqhamo kwaye ifumaneka eCorydalis, eBoletus, eLichens, nakwi-Icelandic Nori.

Qhagamshelana nathi

iinkcukacha zemveliso

Inkcazo

I-Fumaric acid isetyenziselwa ukuveliswa kwee-polyester resins ezingaxutywanga. Olu hlobo lwe-resin lubonakaliswe ngokumelana neekhemikhali ezilungileyo kunye nokuchasana nokushisa; i-copolymer ye-fumaric acid kunye ne-vinyl acetate yinto efanelekileyo yokubambelela. I-Copolymer ene-styrene yimathiriyeli ekrwada yokwenza i-FRP. I-plasticizer eyenziwe nge-fumaric acid ayinayo ityhefu kwaye ingasetyenziselwa i-vinyl acetate latex xa idibene nokutya. Le mveliso yikhemikhali elungileyo ephakathi efana neyeza kunye ne-agent ye-optical bleaching. Isetyenziselwa ukuveliswa kwe-antidote dimercaptosuccinic acid kwishishini lamachiza. I-asidi ye-fumaric ingathathi hlangothi kunye ne-sodium carbonate ukufumana i-sodium fumarate ( [17013-01-3] ), kwaye indawo yayo ifakwe i-ferrous sulfate ukuze ifumane i-iron fumarate, esetyenziselwa ukunyanga i-anemia encinci ye-cell blood cell kunye neziyobisi ezinentsimbi. Le mveliso isetyenziswa njenge-additive-sour agent, esetyenziselwa iziselo ezihlaziyayo, i-candy yeziqhamo, i-jelly, i-ayisikrimu, njl., Uninzi lwazo lusetyenziswa ngokudibanisa ne-agent emuncu ye-citric acid. Ityuwa ye-monosodium eyenziwe yi-reaction ye-fumaric acid kunye ne-sodium hydroxide, Ikwasetyenziswa njenge-seasoning emuncu kunye ne-intermediate ye-synthetic resin kunye ne-mordant.

inkcazelo2

Isicelo

Ekutyeni okusetyenziswa ikakhulu kwiimveliso zenyama, ukusetyenzwa kweemveliso zeentlanzi njalo njalo. Iasidi yeFumaric ingasetyenziswa njengomlawuli we-asidi, i-acidifier, i-antioxidant, i-salting promoter kunye ne-spice. Le mveliso inesiphumo esomeleleyo se-buffer ukugcina isisombululo esinamanzi malunga ne-pH3.0, kwaye sinendima ebalulekileyo ekuthinteleni i-antibacterial kunye nokungunda, kwangaxeshanye, inencasa ye-astringent, yenye yee-asidi eziqinileyo eziqinileyo, izinga lokufunxa eliphantsi, kwaye inceda ukwandisa ubomi beshelufu yemveliso yomgubo. Xa iasidi ye-fumaric iguqulwa ibe yi-sodium fumarate, ukunyibilika kwamanzi kunye nencasa iba ngcono.

Ukuchazwa kwemveliso

Igama lemveliso	I-Fumaric acid
CAS	110-17-8
MF	C4H4O4
MW	116.07
EINECS	203-743-0
I-Fumaric acid Properties Chemical	?
Indawo yokunyibilika	298-300 °C (subl.) (lit.)
Indawo yokubilisa	137.07°C (uqikelelo olurhabaxa)
ukuxinana	1.62
uxinzelelo lomphunga	1.7 mm Hg ( 165 °C)
FEMA	2488 \| I-FUMARIC ACID
isalathiso se-refractive	1.5260 (uqikelelo)
Fp	230 °C
ixesha lokugcina.	Gcina ngaphantsi +30°C.
ukunyibilika	I-95% ye-ethanol: i-soluble0.46g / 10 mL, icacile, ayinambala
ifomu	Umgubo ococekileyo weCrystalline
pka	3.02, 4.38(nge-25oC)
umbala	Mhlophe
PH	2.1 (4.9g/l, H2O, 20oC)
umda wokuqhushumba	40%
Ukunyibilika kwamanzi	0.63 g/100 mL (25 oC)
Inombolo yeJECFA	618
Merck	144,287
I-BRN	605763
Uzinzo:	Izinzile kwiqondo lokushisa. Ukubola malunga ne-230 C. Ayihambelani ne-oxidizing agents enamandla, iziseko, ii-agent zokunciphisa. Ukutsha.
I-InChIKey	VZCYOOQTPOCHFL-OWOJBTEDSA-N
CAS Database Reference	110-17-8(CAS Database Reference)
NIST Chemistry Reference	Iasidi yeFumaric(110-17-8)
EPA Substance Registry System	I-Fumaric acid (110-17-8)

Izinto	Imigangatho
Isivavanyi(%)	≥99.0
Umnatha	Ngokusebenzisa i-300 Mesh
NJENGOKO PPM	≤3
Iintsimbi ezinzima (Pb)	≤10
Amanzi (%)	≤0.3
Iasidi yeMaleic (%)	≤0.1
Umbala (Pt-Co)	≤15 Hazen
Indawo yokunyibilika(oC)	286-289
Ukunyibilika (25oC)	≥1.00g/100ml Amanzi