The preparation of polymer is required for high purity of glycolic acid, if not, low-weight polymer is obtained, therefore, high purity glycolic acid is scarce in the market. So, the research for the synthesis of glycolic acid is essential. In domestic and overseas, there are many methods for preparation of glycolic acid, including glycin oxidation, cyanogenesis, aldehyde oxidation, coupling of maldehyde and methyl formate, oxalic acid electrolysis, chloroactic acid hydrolysis and so on.

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Major procurement of goods: a three-chlorosilanes, dichloromethane, AE activity ester, 3-iodine Silane, special acid, pentyl chloride, triethylamine, thiadiazole, tetrazolylazo acid, 2 - Acetamide, tetrahydrofuran, the four-guanidine, isopropanol, five phosphorus trichloride, sodium vary bitter, acid, sodium phenylacetate, 6-2 silicon n-amine, Ethylacetoacetate , Methyl isobutyl ketone, potassium dihydrogen phosphate, aluminium oxide, DL methionine, N, N-dimethylaniline, NN-diethyl aniline, 4 sodium EDTA, Anhydrous sodium sulfate, ammonium sulfate, potassium sulfate, sodium acetate, sodium carbonate, DMC, formic acid, sodium chloride medicinal, oxalate, protopine, acetone, alcohol, acetic acid, vinegar Ethyl, butyl acetate, methanol, ethanol (anhydrous, industrial, medicinal), formaldehyde, Ye Jian (30%), hydrochloride (industrial-grade, refined grade, reagent level), sulfate (98%), Ammonia, calcium carbonate, chlorine dioxide, 6 - APA ,7-ACA ,7-ADCA ,7-ANCA, sulbactam, ceftazidime activity ester, Deng salt (hydroxymethyl-K, acid precursors Potassium, sodium dihydrogen methyl), resin, the enzyme, water treatment agent, Xiao Mo agent, demulsifier, flocculants, activated carbon, all kinds of medicinal materials, All kinds of additives

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Mission:"equality and mutual benefit, reputation first, unity and cooperation and friendship between the long-term" supply products: ethylenediamine; diethylamide; triethylamine; Diethylenetriamine; three ethylene diamine; three ethylene amines 40; 40 Five ethylene amines; five ethylene amines 6; caprolactam; DMF; allyl amine; N, N dimethylaniline; propylamine; are butylamine; are TOA; 3 Poly Cyanamide; 1,2 c diamine; ethanolamine; diethanolamine, triethanolamine; potassium iodide, potassium hydroxide, potassium permanganate, toluene, xylene, toluene of chlorine ; Acetone, butanone; acetylacetone; ethyl acetate, butyl acetate; Y-butyrolactone; DMC; acetyl of methyl acetate; Sanfu acetyl acid; Sanfu acetyl B Ethyl; methanol, ethanol, isopropanol; propylene glycol; glycerol; propargyl alcohol; 1.3 propylene glycol; xylitol; acetic acid; have acid; mercaptoacetic acid; vary Bitterness; adipic acid; trifluoroacetic acid; oxalic acid, the amino acid; o-amygdalin acid; DL-Acid; anhydrous piperazine; six non-piperazine, furfural, castor oil, ethylene Aldehyde; glutaraldehyde, multi-POM; isopropyl ether; anisole; tetrahydropyrrole; pure pyridine; 1.2 dichloroethane; methylene chloride, chloroform, carbon tetrachloride; hydrazine hydrate; Nonylphenol;-m-cresol; Se phenol; phenol; the tert-butyl phenol; Titanium Dioxide; iron; full Tangfen; Bisphenol A; azo two different nitrile; sodium azide; sodium carbonate ; Sodium chloride; iron oxide; cuprous chloride; thionyl chloride; D4; sodium bicarbonate; ammonia, potassium chloride; anhydrous sodium sulphite; ammonium persulfate; glycol Dingmi; B Glycol ether; calcium chloride; cyclohexanone; cyclohexane, methyl tertiary butyl ether, potassium carbonate, ferric chloride, potassium nitrate; Linsuansanna; zinc oxide; sodium nitrite; antimony oxide; Tartrate; OP-10; TX-10; tablets base; AES; sodium benzoate, sodium citrate; partial sodium silicate, sodium perborate, a sodium carbonate, sodium benzene; Asia sodium chlorate; Wuluo Care products; urea; hydrochloric acid, sulfuric acid, lactic acid; amino acid, hydrogen peroxide, ammonium bicarbonate

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The extracting ability of several organic solvents such as ethyl acetate, butyl acetate, glycerol triacetate, iso-amy lacetate, and n-butanol, was compared, and it was found that ethyl acetate was a good kind of organic solvent.

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A set of laser monitoring observation system to be used for measure the solubility with a high speed, which is programmed heating apparatus , have designed. The solubility of 1,2-cyclohexanediol were measured in water, methyl acetate, acetic ester, propyl acetate, butyl acetate, methyl acrylate, ethyl acrylate, acetoacetic ester at different temperature.

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Mission:"equality and mutual benefit, reputation first, unity and cooperation and friendship between the long-term" supply products: ethylenediamine; diethylamide; triethylamine; Diethylenetriamine; three ethylene diamine; three ethylene amines 40; 40 Five ethylene amines; five ethylene amines 6; caprolactam; DMF; allyl amine; N, N dimethylaniline; propylamine; are butylamine; are TOA; 3 Poly Cyanamide; 1,2 c diamine; ethanolamine; diethanolamine, triethanolamine; potassium iodide, potassium hydroxide, potassium permanganate, toluene, xylene, toluene of chlorine ; Acetone, butanone; acetylacetone; ethyl acetate, butyl acetate; Y-butyrolactone; DMC; acetyl of methyl acetate; Sanfu acetyl acid; Sanfu acetyl B Ethyl; methanol, ethanol, isopropanol; propylene glycol; glycerol; propargyl alcohol; 1.3 propylene glycol; xylitol; acetic acid; have acid; mercaptoacetic acid; vary Bitterness; adipic acid; trifluoroacetic acid; oxalic acid, the amino acid; o-amygdalin acid; DL-Acid; anhydrous piperazine; six non-piperazine, furfural, castor oil, ethylene Aldehyde; glutaraldehyde, multi-POM; isopropyl ether; anisole; tetrahydropyrrole; pure pyridine; 1.2 dichloroethane; methylene chloride, chloroform, carbon tetrachloride; hydrazine hydrate; Nonylphenol;-m-cresol; Se phenol; phenol; the tert-butyl phenol; Titanium Dioxide; iron; full Tangfen; Bisphenol A; azo two different nitrile; sodium azide; sodium carbonate ; Sodium chloride; iron oxide; cuprous chloride; thionyl chloride; D4; sodium bicarbonate; ammonia, potassium chloride; anhydrous sodium sulphite; ammonium persulfate; glycol Dingmi; B Glycol ether; calcium chloride; cyclohexanone; cyclohexane, methyl tertiary butyl ether, potassium carbonate, ferric chloride, potassium nitrate; Linsuansanna; zinc oxide; sodium nitrite; antimony oxide; Tartrate; OP-10; TX-10; tablets base; AES; sodium benzoate, sodium citrate; partial sodium silicate, sodium perborate, a sodium carbonate, sodium benzene; Asia sodium chlorate; Wuluo Care products; urea; hydrochloric acid, sulfuric acid, lactic acid; amino acid, hydrogen peroxide, ammonium bicarbonate

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N,N'-ethylenediamine diacetic acid was prepared by condensation of ethylenediamine, formaldehyde and potassium cyanide. Then 2-oxo-1-piperazine acetic acid was prepared from N,N'-ethylenediamine diacetic acid. In addition, 2-oxo-1, 4-piperazine diacetic acid(3-KP) was prepared from 2-oxo-1-piperazine acetic acid with chloroacetic acid.

本文用乙二胺、甲醛和氰化鉀合成了N色羞羞在线，N′—乙二胺二乙酸自拍日韩欧美激情视频在线观看，然后由N，N′—乙二胺二乙酸合成了2—氧—1—哌嗪乙酸一区二区爱爱免费看视频，再由2—氧—1—哌嗪乙酸和氯乙酸合成了2—氧—1国产乱弄视频，4—哌嗪二乙酸(3-KP)。

The investigation on the concentration of four haloacetic acid s during conventional water treatment process in waterworks and in drinking waters in North China showed that there were only dichloroacetic acids and trichloroacetic acids in waters,and the proportion of TCAA was from 52% to 90%.

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The experimental results showed that, monochloroacetic acid and dichloroacetic acid enhanced photocatalytic hydrogen generation activity, but trichloroacetic acid did not improve it. The amount of produced H_2 increases almost proportionally to the irradiation time within 5 h irradiation. The photocatalytic oxidation of monochloroacetic acid and dichloroacetic acid mainly produced CO_2, HC1 and CH_2O, the photocatalytic oxidation of trichloroacetic acid mainly produced CO_2 and HCl.

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The five halogenated acetic acids, monochloroacetic acid, dichloroacetic acid, trichloro acetic acid, monobromoacetic acid, dibromoacetic acid, were separated on an IonPac AS19 column specially designed for oxyhalides, and the separating conditions were optimized.

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ethyl acetate：乙酸乙酯

乙酸乙酯(ethyl acetate)又稱醋酸乙酯. 純凈的乙酸乙酯是無色透明有芳香氣味的液體,乙酸乙酯是一種用途廣泛的精細化工產品,乙酸乙酯具有優(yōu)異的溶解性、乙酸乙酯快干性,乙酸乙酯用途廣泛,乙酸乙酯是一種非常重要的有機化工原料和極好的工業(yè)溶劑,

HAC：乙酸

通過對比檸檬酸(Cit)-氫氧化鈉(NaOH)操逼逼亚洲国产、乙酸鈉(NaAc)-氫氧化鈉(NaOH)淫乱精品自拍、硼酸(H3BO3)-乙酸(HAc)和乙酸銨(NH4Ac)-乙酸(HAc)這幾種緩沖體系,實驗發(fā)現(xiàn)只有在檸檬酸(Cit)-氫氧化鈉(NaOH)緩沖體系中,苯丙氨酸對映體才能得到分離,

acetate-mevalonate pathway：乙酸-甲瓦龍酸途徑 乙酸-甲瓦龍酸途徑

acetate-malonate pathway 乙酸-丙二酸途徑 乙酸-丙二酸途徑 | acetate-mevalonate pathway 乙酸-甲瓦龍酸途徑 乙酸-甲瓦龍酸途徑 | acetylcholinesterase inhibitor 乙醯膽鹼酯酶抑制藥 乙酰膽堿酯酶抑制藥

polyvinyl acetate：聚乙酸乙烯酯

聚乙酸乙烯酯(polyvinyl acetate)又名聚醋酸乙烯酯. 是乙酸乙烯酯(醋酸乙烯酯)的聚合物. 英文縮寫為PVAc. 1912年德國F.克拉特和A.羅萊特首先發(fā)現(xiàn)聚乙酸乙烯酯. 1929年德國H.普勞松用乳液聚合法首先制得聚乙酸乙烯酯乳液.

acetoacetate：乙酰乙酸酯;乙酰乙酸鹽

acetocarmine 醋酸胭脂紅 | acetoacetate 乙酰乙酸酯;乙酰乙酸鹽 | acetoacetate decarboxylase 乙酰乙酸脫羧酶

acetoacetate decarboxylase：乙醯乙酸去羧

"乙醯乙酸酯,乙醯乙酸鹽","acetoacetate" | "乙醯乙酸去羧<>","acetoacetate decarboxylase" | "乙醯乙酸","acetoacetic acid"

cocamine acetate：乙酸椰油胺

乙酸乙烯酯/丁烯酸共聚物和異丙醇 vinyl acetate/crotonic acid copolymer and isopro- pyl alcohol | 乙酸椰油胺 cocamine acetate | 乙酸十六烷酯和羊毛脂醇乙酸酯 cetyl acetate and acetylated lanolin alcoho...

diacetic ester; ethyl acetoacetate：乙酰乙酸乙酯

乙酰乙酸 diacetic acid; acetoacetic acid | 乙酰乙酸乙酯 diacetic ester; ethyl acetoacetate | 二乙酸甘油酯;甘油二乙酸酯;二乙酰甘油 diacetin; diacetylglycine

diacetin; diacetylglycine：二乙酸甘油酯;甘油二乙酸酯;二乙酰甘油

乙酰乙酸乙酯 diacetic ester; ethyl acetoacetate | 二乙酸甘油酯;甘油二乙酸酯;二乙酰甘油 diacetin; diacetylglycine | 二乙酰乙酸;1,4-二乙酰苯 diacetoacetic acid; 1,4-diacetobenzene

acetylhydroperoxide; peracetic acid：過氧乙酸;過乙酸

過乙酸 acetylhydroperoxide; peracetic acid | 過氧乙酸;過乙酸 acetylhydroperoxide; peracetic acid | 乙酰亞胺二乙酸 acetyliminodiacetic acid