Unilong tuaj yeem muab glyoxylic acid 50% kua thiab 99% hmoov CAS 298-12-4

Unilong tuaj yeem muab cov glyoxylic acid 50% kua thiab 99% hmoov CAS 298-12-4 Featured duab

CAS Nr:.298-12-4 : kuv

MF:C2H2O3

EINECS No.:206-058-5 : kuv

Purity:50.0% ± 0.5%, 99%

Qhov tsos:Yellowish pob tshab kua / hmoov

Synonym:GLYOXYLIC ACID;oxo-aceticaci;2-Oxoacetic acid (50% hauv dej);Glyoxalic acid 40% 50%;Glyoxylic acid tov, 50 wt.% hauv dej;Aldehydoformicacid;alpha-Ketoacetic acid;Formic acid, formyl-;Formylformic;formyl-formicaci;glyoxylicacid (oxo-aceticacid);Kyselina glyoxylova;kyselinaglyoxylova;OHCOOH;oxalaldehydicacid;GLYOXYLIC ACID DAWB ACID;Glyoxylicacid, 50% w/waq.soln.;Glyoxylic acid 50% hauv dej;Glyoxylic acid daws;Glyoxylure;Glyoxylic Acid nrog rau cov tshuajSoln.;glyoxylic acid 50% dej daws;Glyoxalic acid (50% hauv dej);50% Glyoxylic acid;TIAB SA 27785

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Dab tsi yog glyoxylic acid?

Glyoxylic acid, tseem hu ua formoic acid, hydrated glyoxylic acid thiab oxyacetic acid, tshuaj formula C2H203, yog qhov yooj yim aldehyde acid, uas muaj nyob rau hauv cov txiv hmab txiv ntoo tsis paub qab hau, kev sib tw ntsuab nplooj thiab qab zib beets.Crystals los ntawm dej yog monoclinic crystals (muaj 1/2 siv lead ua dej).Tus txheeb ze molecular hnyav yog 70.04.Lub melting point yog 98 ℃.Nws muaj ib qho tsis kaj siab saj.Nws yog ib qho muaj zog corrosive acid, uas yog ib qho yooj yim rau deliquescence thiab tuaj yeem tsim ib qho muab tshuaj txhuam thaum raug huab cua.Nws yog me ntsis soluble hauv ethanol, ether thiab benzene, thiab tuaj yeem yooj yim soluble hauv dej.Cov tshuaj aqueous yog ruaj khov thiab tsis deteriorate hauv huab cua.Nws muaj nyob rau hauv aqueous tov nyob rau hauv daim ntawv ntawm hydration.Nws tuaj yeem cuam tshuam nrog cov hlau feem ntau tsuas yog stainless hlau.Nws muaj cov yam ntxwv ntawm acid thiab aldehyde.

Specification

Yam khoom	Qib ib txwm	Cheating Qib A	Cheating Qib B	Cheating Qib C	Qib tshwj xeeb A	Qib tshwj xeeb B
Assay	≥50%	≥50%	≥50%	≥50%	≥50%	≥50%	Glyoxylic acid monohydrate	563-96-2
Glyoxal	≤ 1.0%	≤ 0.5%	≤ 0.5%	≤ 0.25%	≤0.01%	≤0.01%		Formylformic acid, Oxoethanoic acid
Nitric acid	Tsis pom	Tsis pom	Tsis pom	Tsis pom	Tsis pom	Tsis pom		100 ° C (lit.)
Oxalic acid	≤ 1.0%	≤ 1%	≤ 0.5%	≤ 0.25%	≤ 0.5%	≤ 0.2%		Ua kua
Hlau	≤ 20ppm	≤ 20ppm	≤ 20ppm	≤ 20ppm	≤10ppm	≤ 5ppm		2 Xyoo
Hnyav hlau	≤ 5ppm	≤ 5ppm	≤ 5ppm	≤ 5ppm	≤ 3ppm	≤1ppm		Khaws hauv qab +30 ° C.
Chloride	≤ 50ppm	≤40ppm	≤40ppm	≤40ppm	≤ 5ppm	≤ 3ppm		99% -
Chroma	≤300#	≤250#	≤250#	≤250#	≤100 #	≤80#		Dawb rau lub teeb daj

Daim ntawv thov

1. Siv los ua cov khoom siv rau methyl vanillin, ethyl vanillin hauv kev lag luam tsw.
2. Siv raws li nruab nrab rau D-hydroxybenzeneglycin, broadspectrum tshuaj tua kab mob, acetophenone, amino acid thiab lwm yam.
3. Siv los ua cov khoom nruab nrab ntawm cov kua roj vanish, dyes, yas, agrochemical, allantoin thiab txhua hnub siv tshuaj thiab lwm yam. Nws yog nrov hauv kev lag luam tshuaj pleev ib ce, rau cov plaub hau zas;khoom tu plaub hau;khoom tu tawv nqaij ect.
4. Glyoxylic acid yog cov khoom siv rau cov dej lim dej, tshuaj tua kab.Nws yog siv los ua ib qho nruab nrab ntawm cov kua roj vanish thiab dyes.
5. Glyoxylic acid kuj tuaj yeem siv rau hauv kev khaws cia cov zaub mov, ua tus neeg sawv cev crosslinking ntawm polymerization thiab ua cov khoom siv plating.