Citric Acid Anhydrous CAS 77-92-9 CAA Food Grade

SUNTE Citric Acid Anhydrous is a natural component and an intermediate product of physiological metabolism in plants and animals, and is also one of the most widely used organic acids in food, medicine, chemical industry and other fields. It is colorless transparent or translucent crystal, or granular, granular powder, odorless, although a strong sour taste, but pleasant, slightly astringent. Gradually weathering in warm air, slightly deliquescent in moist air.

Applications in the food industry

Anhydrous citric acid is known as the first edible acid taste agent, and GB2760-1996 is a permitted acidity regulator for food. In the food industry, it is widely used as sour agent, solubilizer, buffer, antioxidant, deodorant, chelating agent, etc., its specific uses are too numerous to list.

1. Beverage According to domestic and foreign statistics, the citric acid consumed by the beverage industry accounts for 75% to 80% of the total citric acid production. Citric acid is one of the natural ingredients of fruit juice, which can not only give fruit flavor but also solubility, buffering, antioxidant and other effects, so that sugar, flavor, pigment and other ingredients in the beverage blend and coordinate, form a harmonious taste and aroma, and increase the anti-microbial anti-corrosion effect. Therefore, it is widely used to prepare a variety of fruit type soft drinks, such as fruit type soft drinks generally add acid between 0.10% and 0.25%.
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2. Jam and jelly The role of citric acid in jam and jelly is similar to that in drinks, mainly regulating the pH of the product and giving the product sour taste, and the pH must be adjusted to a very narrow range that is most suitable for pectin coagulation. Depending on the type of pectin used, the pH can be limited between 3.0 and 3.4. In jam production, it can improve the flavor and prevent the defect of sucrose crystallization out sand.

​3. Candy citric acid added to candy can increase the sour taste and prevent the oxidation of various components and sucrose crystallization. General sour candy can contain 2% citric acid. After boiling the sugar, the citric acid is added together with the pigment and essence during the cooling process of the sugar paste. Citric acid in the production of pectin jelly can regulate the acid taste and enhance the gel strength. Anhydrous citric acid is used in chewing gum and powdered foods.
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4. Frozen food citric acid has the characteristics of chelating and regulating pH, which can strengthen the effect of antioxidants and inactivate enzymes, and can ensure the stability of frozen food more reliably. Citric acid, alone or in combination with isascorbic acid, helps extend the shelf life of frozen fish and shellfish by inactivating and chelating trace elements in enzyme systems that can cause fish spoilage and shellfish spoilage.

Applications in the pharmaceutical industry

​Effervescent is a popular oral drug ingredient release system in which citric acid reacts with sodium carbonate or sodium bicarbonate aqueous solution to produce a large amount of CO2 (i.e. effervescent) and sodium citrate, which can quickly dissolve the active ingredient in the drug and enhance the taste ability. For example, to make laxatives and painkillers solubilizing.

The application in industry

1. Metal purification The citric acid based metal purification formula can effectively remove oxides formed on the surface of ferrous and non-ferrous metals. As a weak organic acid, it can cause slight damage to the metal surface layer, while as a metal ion chelating agent, it accelerates the migration of metal oxides.

2. Detergent sodium citrate can increase decontaminating performance, in many household detergent products can accelerate biodegradation, can be used as a phosphate substitute, a large number of used in laundry detergent, detergent, sodium citrate and aluminum silicate together to enhance the cleaning agent cleaning effect is very effective.

3. Soilless cultivation agriculture in foreign countries using trace element plant nutrient solution soilless cultivation has long been common, and has begun to develop in China. In order to remove some excessive elements such as copper, zinc, manganese and chromium from the soil, citric acid is generally used to chelate such elements. The use of citric acid instead of phosphate can achieve a satisfactory yield increase.

4. The application of citric acid in minerals and pigments has a dispersing effect, which can reduce the viscosity of some important slurry raw materials. In mining, for example, the viscosity of phosphate rock powder in hydraulic transportation often becomes the main reason of clay expansion. The expansion can be controlled by citric acid treatment, which makes the slurry raw material easy to transport. Citric acid also reduces the precipitation of the concentrated raw material of titanium dioxide, making it easy to handle and transport in whole form. Citric acid can also be used as a dispersant for low-pulp adhesives, paint and textile raw materials, and titanium dioxide.

The company has professional warehouses in Tianjin, Shanghai, Shandong, Nanjing, and other places, with a sufficient supply of goods.

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- A specialized import and export team coupled with an efficient service process.

Tianjin Shengtai Chemical Co., Ltd.

Suntechemical is a professional supplier of fine chemicals and one of northern China's largest suppliers. We have over 25 years of experience in the chemical field. The company has professional warehouses in Tianjin, Shanghai, Shandong, Nanjing, and other places, with a sufficient supply of goods. Now the United States, the European Union, Japan, Canada, and other countries have more than 100 customers to establish stable trade relations.

Our products are widely used in medicine, pesticides, food, oilfield and water treatment, daily chemicals and cosmetics, surfactants, inks, rubber, cement additives, coatings, polyurethanes, adhesives, solvents, additives, leather, textile, printing and dyeing, building materials, metal processing and other fine chemical-related industries.

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Q1: May I get some samples from your side?
Re: Yes, of course. We’d like to provide a 10-1000 g free sample to you, which depends on the product you need. For freight, your side needs to bear, but we will refund you after you place a bulk order.

Q2: What is your MOQ?
Re: Usually our MOQ is 1 kg, but sometimes it also is flexible and depends on the product.

Q3: What kinds of payment are available for you?
Re: We recommend you pay by T/T or L/C, and you can also choose to pay by PayPal, or MoneyGram if the value is less than USD 3000. Besides, sometimes we also accept Bitcoin.

Q4: How about lead time?
Re: For small quantities, the goods will be sent to you within 1-3 working days after payment. For larger quantities, the goods will be sent to you within 3-7 working days after payment.

Q5: How long I can get my goods after payment?
Re: For small quantities, we will deliver by courier(FedEx, TNT, DHL, etc) and it usually will take 3-7 days to your side. If you want to use a special line or air shipment, we can also provide and it will cost about 1-3 weeks. For large quantities, shipment by sea will be better. For transport time, it takes 3-40 days, which depends on your location.

Q6: What’s your after-sales service?
Re: We will inform you of the progress of the order, such as product preparation, declaration, transportation follow-up, customs clearance assistance, etc.