For food industry

因為檸檬酸有溫和爽快的酸味，普遍用于各種飲料、汽水、葡萄酒、糖果、點心、餅干、罐頭果汁、乳制品等食品的制造。在所有有機酸的市場中，檸檬酸市場占有率 70%以上，調(diào)味劑，也可用作食用油的抗氧化劑。同時改善食品的感官性狀，增強食欲和促進(jìn)體內(nèi)鈣、磷物質(zhì)的消化吸收。無水檸檬酸大量用于固體飲料。檸檬酸的鹽類如檸檬酸鈣和檸檬酸鐵是某些食品中需要添加鈣離子和鐵離子的強化劑。檸檬酸的酯類如檸檬酸三乙酯可作無毒增塑劑，制造食品包裝用塑料薄膜，是飲料和食品行業(yè)的酸味劑，防腐劑。

Because citric acid has a mild and refreshing sour taste, it is widely used in the manufacture of various beverages, soft drinks, wine, candy, snacks, biscuits, canned fruit juices, dairy products and other foods. In the market of all organic acids, citric acid has a market share of more than 70%. Flavoring agent can also be used as antioxidant of edible oil. At the same time, improve the sensory properties of food, enhance appetite and promote the digestion and absorption of calcium and phosphorus substances in the body. Anhydrous citric acid is widely used in solid drinks. Salts of citric acid, such as calcium citrate and iron citrate, are fortifiers that need to add calcium and iron ions to some foods. Esters of citric acid, such as triethyl citrate, can be used as non-toxic plasticizers, plastic films for food packaging, and sour agents and preservatives in the beverage and food industries.

用于化工和紡織業(yè)

For chemical and textile industries

檸檬酸在化學(xué)技術(shù)上可作化學(xué)分析用試劑，用作實驗試劑、色譜分析試劑及生化試劑；用作絡(luò)合劑，掩蔽劑；用以配制緩沖溶液。采用檸檬酸或檸檬酸鹽類作助洗劑，可改善洗滌產(chǎn)品的性能，可以迅速沉淀金屬離子，防止污染物重新附著在織物上，保持洗滌必要的堿性；使污垢和灰分散和懸??；提高表面活性劑的性能，是一種優(yōu)良的鰲合劑；可用作測試建筑陶瓷瓷磚的耐酸性的試劑。

Citric acid can be used as reagent for chemical analysis, experimental reagent, chromatographic reagent and biochemical reagent in chemical technology; Used as complexing agent and masking agent; Used to prepare buffer solution. Using citric acid or citrate as washing aid can improve the performance of washing products, quickly precipitate metal ions, prevent pollutants from re adhering to the fabric, and maintain the necessary alkalinity for washing; Disperse and suspend dirt and ash; Improving the performance of surfactant is an excellent chelating agent; It can be used as a reagent to test the acid resistance of building ceramic tiles.

服裝的甲醛污染已是很敏感的問題，檸檬酸和改性檸檬酸可制成一種無甲醛防皺整理劑，用于純棉織物的防皺整理。不僅防皺效果好，而且成本低。

Formaldehyde pollution of clothing is already a very sensitive problem. Citric acid and modified citric acid can be made into a formaldehyde free crease resistant finishing agent for crease resistant finishing of pure cotton fabrics. It not only has good wrinkle prevention effect, but also has low cost.

用于環(huán)保

For environmental protection

檸檬酸-檸檬酸鈉緩沖液用于煙氣脫硫。中國煤炭資源豐富，是構(gòu)成能源的主要部分，然而一直缺乏有效的煙氣脫硫工藝，導(dǎo)致大氣SO2污染嚴(yán)重。研究有效的脫硫工藝，實為當(dāng)務(wù)之急。檸檬酸-檸檬酸鈉緩沖溶液由于其蒸氣壓低、無毒、化學(xué)性質(zhì)穩(wěn)定、對SO2吸收率高等原因，是**開發(fā)價值的脫硫吸收劑。

Citric acid sodium citrate buffer is used for flue gas desulfurization. China is rich in coal resources, which is the main part of energy. However, there has been a lack of effective flue gas desulfurization process, resulting in serious atmospheric SO2 pollution. It is urgent to study effective desulfurization process. Citric acid sodium citrate buffer solution is a desulfurization absorbent of * * development value because of its low vapor pressure, non-toxic, stable chemical properties and high SO2 absorption rate.

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