Fumaric acid inogona kushandiswa se acidity regulator

Fumaric acid, inozivikanwawo se fumaric acid, violet acid kana lichenic acid, inonzi fumaric acid (IUPAC zita (E) -butenedioic acid), ikristaro isina ruvara, inobvira moto inoumbwa neCarboxylic acids inotorwa kubva kubutene. Kupisa fumaric asidhi kunoburitsa utsi hunoshatirisa hwemaleic anhydride. Inonaka semuchero uye inowanikwa muCorydalis, Boletus, Lichens, uye Icelandic Nori.

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Tsanangudzo

Fumaric acid inoshandiswa mukugadzira unsaturated polyester resins. Rudzi urwu rweresin runoratidzwa nekunaka kwemakemikari kuramba uye kupisa kupisa; iyo copolymer ye fumaric acid uye vinyl acetate inonamira yakanaka. Copolymer ine styrene ndiyo mbishi yekugadzira FRP. Iyo plasticizer yakagadzirwa nefumaric acid haina chepfu uye inogona kushandiswa vinyl acetate latex inosangana nechikafu. Ichi chigadzirwa ikemikari yakanaka yepakati senge mushonga uye optical bleaching agent. Inoshandiswa mukugadzira antidote dimercaptosuccinic acid muindasitiri yemishonga. Iyo fumaric acid inogadziriswa ne sodium carbonate kuti iwane sodium fumarate ( [17013-01-3]), yozotsiviwa neferrous sulfate kuti iwane iron fumarate, iyo inoshandiswa kurapa diki dzvuku sero reropa anemia nemishonga ine iron-rich. Ichi chigadzirwa chinoshandiswa sechikafu chekuwedzera-sour agent, chinoshandiswa mukuzorodza zvinwiwa, candy yemichero, jelly, ice cream, nezvimwewo, mazhinji ayo anoshandiswa musanganiswa neanovava agent citric acid. Iyo monosodium munyu inogadzirwa nekuita kwe fumaric acid uye sodium hydroxide, Inoshandiswawo seyakavava murungi uye sepakati pekugadzira resin uye mordant.

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Application

Muchikafu chinonyanya kushandiswa muzvigadzirwa zvenyama, kugadzirwa kwehove uye zvichingodaro. Fumaric acid inogona kushandiswa se acidity regulator, acidifier, antioxidant, salting kukurudzira uye spice. Ichi chigadzirwa chine yakasimba buffer effect kuchengetedza mvura ine mvura inenge pH3.0, uye ine basa rakakosha mukudzivirira antibacterial uye mildew, panguva imwe chete, ine astringent kuravira, ndeimwe yeakanyanya acidic solid acids, low absorption rate, uye inobatsira kuwedzera pasherufu yezvigadzirwa zvehupfu. Kana fumaric asidhi ichishandurwa kuita sodium fumarate, kunyungudika kwemvura uye kunaka kuri nani.

Product specification

Product Name	Fumaric acid
CAS	110-17-8
MF	C4H4O4
MW	116.07
EINECS	203-743-0
Fumaric acid Chemical Properties	?
Melting point	298-300 °C (subl.) (lit.)
Boiling point	137.07°C (yakaomarara fungidziro)
density	1.62
mhute pressure	1.7 mm Hg (165 °C)
FEMA	2488 \| FUMARIC ACID
refractive index	1.5260 (kufungidzira)
Fp	230 °C
kuchengetedza temp.	Chengetedza pasi pe +30°C.
solubility	95% ethanol: soluble0.46g/10 mL, yakajeka, isina ruvara
form	Yakanaka Crystalline Powder
pka	3.02, 4.38(pa25oC)
color	Chena
PH	2.1 (4.9g/l, H2O, 20oC)
kuputika muganhu	40%
Mvura Solubility	0.63 g/100 mL (25 oC)
Nhamba yeJECFA	618
Merck	144,287
BRN	605763
Kugadzikana:	Yakagadzikana pakupisa kwekamuri. Inoparara kumativi e230 C. Isingaenderani neakasimba oxidizing agents, mabhesi, kuderedza vamiririri. Inopisa.
InChIKey	VZCYOOQTPOCHFL-OWOJBTEDSA-N
CAS DataBase Reference	110-17-8(CAS DataBase Reference)
NIST Chemistry Reference	Fumaric acid (110-17-8)
EPA Substance Registry System	Fumaric acid (110-17-8)

Items	Mitemo
Assay(%)	≥99.0
Mesh	Kuburikidza ne300 Mesh
AS PPM	≤3
Masimbi anorema (Pb)	≤10
Mvura (%)	≤0.3
Maleic Acid (%)	≤0.1
Ruvara (Pt-Co)	≤15 Hazen
Melting Point(oC)	286-289
Solubility (25oC)	≥1.00g/100ml Mvura