Glyoxylic acid

Glyoxylic acid Property

mp : -93°C bp : 111°C density : 1.33 g/mL at 20 °C refractive index : n20/D 1.414 Fp : 111°C storage temp. : 2-8°C Water Solubility : miscible Merck : 4511 CAS DataBase Reference: 298-12-4(CAS DataBase Reference) NIST Chemistry Reference: Acetic acid, oxo-(298-12-4) EPA Substance Registry System: Acetic acid, oxo-(298-12-4)

Safety

Hazard Codes : C,Xi Risk Statements : 34-43-41 Safety Statements : 26-36/37/39-45-37/39-24 RIDADR : UN 3265 8/PG 2 WGK Germany : 1 RTECS : MD4550000 HazardClass : 8 PackingGroup : III Hazardous Substances Data: 298-12-4(Hazardous Substances Data)

Glyoxylic acid Chemical Properties,Usage,Production

Chemical Properties clear yellow solution General Description Supplied as a 50% aqueous solution. Colorless to straw yellow. Reactivity Profile GLYOXYLIC ACID is a carboxylic acid. Preparative hazard, nitric acid and glyoxal to produce glyoxylic acid has had explosive consequences. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in Glyoxylic acid to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions. Health Hazard Contact will cause severe eye and skin burns. Vapor exposure may cause eye and skin irritation.

Glyoxylic acid Preparation Products And Raw materials

Raw materials Oxalic acid Glyoxal Dichloroacetic acid Sodium methanolate Methoxyacetic acid Nitric acid

Preparation Products HOMOGENTISIC ACID GAMMA-LACTONE 2-Quinoxalinone 4-Methylmorpholine 2-Amino-2-phenylacetic acid Ceftizoxime N,N-Dimethyloctadecylamine 3-Hydroxy-4-methoxybenzaldehyde DL-4-HYDROXY-3-METHOXYMANDELIC ACID Allantoin Sulindac Hydroxyphosphono-acetic acid N,N-DIMETHYL-N-PHENETHYLAMINE GUSPERIMUS 4-Hydroxyphenylacetic acid p-Hydroxybenzaldehyde Homovanillic acid Mepiquat chloride Ethyl vanillin Vanillin DL-4-HYDROXYMANDELIC ACID MONOHYDRATE D(-)-4-Hydroxyphenylglycine DL-Isoserine

Glyoxylic acid Suppliers      Global( 218)Suppliers      BELGIUM 1 CHINA 187 Europe 4 GERMANY 4 JAPAN 1 Slovakia 1 South Korea 1 SWITZERLAND 1 UNITED KINGDOM 2 USA 16 Global 218

Supplier Tel Fax Email Country ProdList Advantage Cangzhou Goldlion Chemicals Co., Ltd +86-13315721466 +86-317-5304268 info@goldlionchem.com CHINA 115 60 Chengdu HuaXia Chemical Reagent Co. Ltd 028-84555305 84555175 13458535857 028-84555506 67055399@qq.com CHINA 10000 58 Hubei Jusheng Technology Co.,Ltd North:027-59599241,18871490274,QQ:1400878000 South:027-59531287,15727001360,QQ:1400878866 ℡ 027-83861211 469501031@qq.com CHINA 10512 58 Shanghai Kangtuo Chemical Co., Ltd. 021-69185553 69185552 021-69186006 kangtuochem@163.com CHINA 5173 55 HENGSHUI HAOYE CHEMICAL CO.,LTD. +86 (318) 210-2300 +86 (318) 601-5252 firmcn@gmail.com CHINA 240 58 Hefei TNJ Chemical Industry Co.,Ltd. +86 (551) 65418684 65418696 +86 (551) 65418697 info@tnjchem.com tnjchem@hotmail.com CHINA 1513 62 Shanghai Boyle Chemical Co., Ltd. Mr Qiu:021-50182298(Demestic market) Miss Xu：021-50180596（Abroad market） +86-21-57758967 sales@boylechem.com CHINA 2221 55 J & K SCIENTIFIC LTD. -- -- jkinfo@jkchemical.com;market3@jkchemical.com CHINA 96847 76 Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing) +86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com CHINA 40407 62 Arden pharmaceutical &chemical Co., Ltd +86-(0)533-3595900 13793319233 +86-(0)533-3595900 info@chems.com.cn CHINA 672 61