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Trisodium citrate dihydrate
content 99.5%
package 25kg / piece
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content
99.5%
package
25kg / piece
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产品介绍product description

别名枸橼酸钠,是一种有机化合物,外观为白色到无色晶体。无臭,有清凉咸辣味。常温及空气中稳定, 在湿空气中微有溶解性,在热空气中产生风化现象。加热至150℃失去结晶水。易溶于水、可溶于甘油、难溶于醇类及其他有机溶剂,过热分解,在潮湿的环境中微有潮解,在热空气中微有风化,其溶液 pH 值约为8。

Is an organiccompound with the appearance of white to colorless crystals. It is odorless andhas a cool, salty and spicy taste. It is stable in normal temperature and air,slightly soluble in humid air, and weathering in hot air. Heating to 150 ° Closes crystal water. Soluble in water, soluble in glycerol, hardly soluble inalcohols and other organic solvents, decomposed by overheating, slightly deliquescedin humid environments, and slightly weathered in hot air. Its solution pH isabout 8.Colorless crystal or white crystalline powder. It issalty and cool.

产品特性Product Features

Chinese   name

柠檬酸三钠,二水;柠檬酸钠;枸橼酸钠;2-羟基丙三羧酸钠

English   name

Trisodium citrate dihydrateTrisodium citrate   dihydrate;Sodium citrate   tribasic;Citric acid trisodium salt

Chemical   formula

C6H5Na3O7·2H2O

Molecular   weight

294.1

CAS   NO.

6132-04-3

UN NO.

NA

Dangerous   nature

Non-hazardous   chemicals

无色晶体或白色结晶粉末。味咸,并有清凉感。

Colorless crystalor white crystalline powder. It is salty and cool.

产品用途Product Usage

柠檬酸钠在食品、饮料工业中用作风味剂、稳定剂;在医药工业中用作抗血凝剂、化痰药和利尿药;在洗涤剂工业中,可替代三聚磷酸钠作为无毒洗涤剂的助剂;在化学上是优良的螯合剂/络合剂,在工业上对柠檬酸钠的应用都是利用此一特性。还用于酿造、注射液、摄影药品和电镀等。

柠檬酸钠是目前最重要的柠檬酸盐,主要由淀粉类物质经发酵生成柠檬酸,再跟碱类物质中和而产生,具有以下优良性能:(1)安全无毒性能。由于制备柠檬酸钠的原料基本来源于粮食,因而绝对安全可靠,对人类健康不会产生危害。联合国粮农与世界卫生组织对其每日摄入量不作任何限制,可认为该品属于无毒品。(2)具有生物降解性。柠檬酸钠经自然界大量的水稀释后,部分变成柠檬酸,两者共存于同一体系中。柠檬酸在水中经氧、热、光、细菌以及微生物的作用,很容易发生生物降解。其分解途径一般是经乌头酸、衣康酸、柠康酸酐,转变为二氧化碳和水。(3)具有金属离子络合能力。柠檬酸钠对Ca2+、Mg2+等金属离子具有良好的络合能力,对其他金属离子,如Fe2+等离子也有很好的络合能力。(4)极好的溶解性能,并且溶解性随水温升高而增加。(5)具有良好的pH调节及缓冲性能。柠檬酸钠是一种弱酸强碱盐,与柠檬酸配伍可组成较强的pH缓冲剂,因此在某些不适宜pH大范围变化的场合有其重要用处。另外,柠檬酸钠还具有优良的缓凝性能及稳定性能。

Sodium citrate isused as a flavoring agent and stabilizer in the food and beverage industry; itis used as an anticoagulant, phlegm and diuretic in the pharmaceuticalindustry; in the detergent industry, it can replace sodium tripolyphosphate asa non-toxic agent Detergent auxiliary; chemically an excellent chelating /complexing agent, industrial applications of sodium citrate all take advantageof this characteristic. It is also used in brewing, injections, photographicdrugs and electroplating.

Sodium citrate iscurrently the most important citrate. It is mainly produced by the fermentationof starch-based substances to produce citric acid, which is then neutralizedwith alkaline substances. Because the raw materials for the preparation ofsodium citrate are basically derived from grain, it is absolutely safe andreliable, and will not cause harm to human health. The Food and AgricultureOrganization of the United Nations and the World Health Organization do notplace any restrictions on their daily intake, and the product can be consideredto be drug-free. (2) Biodegradable. After the sodium citrate is diluted with alarge amount of water in nature, part of it becomes citric acid, and the twocoexist in the same system. Citric acid is easily biodegraded in water by theaction of oxygen, heat, light, bacteria and microorganisms. Its decompositionpathway is generally converted to carbon dioxide and water via aconitic acid,itaconic acid, and citraconic anhydride. (3) It has metal ion complexingability. Sodium citrate has good complexing ability to Ca2 +, Mg2 + and othermetal ions, and has good complexing ability to other metal ions, such as Fe2 +.(4) Excellent dissolving performance, and the solubility increases withincreasing water temperature. (5) Has good pH adjustment and bufferingperformance. Sodium citrate is a weak acid and strong alkali salt, which can becombined with citric acid to form a strong pH buffering agent, so it has itsimportant use in some occasions that are not suitable for large-scale pHchanges. In addition, sodium citrate also has excellent retardation andstability properties.

包装与储存Store

应放置室内阴凉干燥处,避免日晒雨淋。

Should be placed in a cool and dry placeindoors, avoiding sun and rain.


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