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Citric Acid Introduction

Citric acid (CA), with the molecular formula C₆H₈O₇, is an important organic acid. It is a colorless crystal, odorless, has a strong sour taste, is easily soluble in water, and is a natural preservative and food additive.

It is mainly used in food, beverage, and pharmaceutical industries as a sour agent, flavoring agent, preservative, preservative, and pharmaceutical auxiliary material. Used as an antioxidant, plasticizer, detergent, etc. in the chemical industry, cosmetic industry, and washing industry.

Natural citric acid is widely distributed in nature. Natural citric acid exists in the bones, muscles, and blood of plants such as lemons, citrus, pineapples, and other fruits and animals. Synthetic citric acid is made by fermenting sugar, molasses, starch, grapes, and other sugary substances.

Citric Acid Parts


Item	Citric Acid Monohydrate	Citri Acid Anhydrous
CAS	5949-29-1	77-92-9
Molecular Formula	C₆H₈O₇•H₂O	C₆H₈O₇
Characters	White or almost white, crystalline powder, colourless crystals or granules. Odorless, has a strongly acid taste. Very soluble in water, freely soluble in ethanol.	White or almost white, crystalline powder, colourless crystals or granules. Odorless, has a strongly acid taste. Very soluble in water, freely soluble in ethanol.
Identification	Pass Test	Pass Test
Appearance of solution	Pass Test	Pass Test
Assay	99.5-100.5%	99.5-100.5%
Water	7.5-8.8%	≤0.5%
Readily Carbonisable Substances	Pass Test	Pass Test
Sulphated Ash (Residue on Ignition)	≤0.05%	≤0.05%
Sulfate	≤50mg/kg	≤50mg/kg
Oxalate	≤50mg/kg	≤50mg/kg
Chloride	≤5mg/kg	≤5mg/kg
Lead	≤0.1mg/kg	≤0.1mg/kg
Arsenic	≤0.1mg/kg	≤0.1mg/kg
Mercury	≤0.1mg/kg	≤0.1mg/kg
Aluminium	≤0.2mg/kg	≤0.2mg/kg
Heavy Metals	≤5mg/kg	≤5mg/kg
Bacterial endotoxins	＜0.5IU/mg	＜0.5IU/mg

KNOW MORE

What Is Citric Acid Mainly Used For?

Food Industry

Citric acid is the most biochemically produced organic acid in the world. Citric acid and salts are one of the pillar products of the fermentation industry, mainly used in the food industry, such as sour agents, solubilizers, buffers, antioxidants, deodorizers, flavor enhancers, gelling agents, toners, etc.
Metal Cleaning

The corrosion inhibition performance of citric acid in detergent is also prominent, and pickling is an important link in chemical cleaning. Compared with inorganic acids, citric acid is relatively weak in acidity, so it is less corrosive to equipment. The safety and reliability of citric acid cleaning are relatively strong, and the waste liquid is relatively easy to handle, and will not cause harm to the human body.
Sterilization and Coagulation

The combination of citric acid and 80°C temperature has a good effect on killing bacterial spores, and can effectively kill bacterial spores polluted in the pipeline of the hemodialysis machine. In the formation of the prothrombin activator and the subsequent coagulation process, calcium ions must participate. Citrate ions and calcium ions can form a soluble complex that is difficult to dissociate, thus reducing the concentration of calcium ions in the blood and hindering blood coagulation.
Animal Farming

(1) Increase feed intake to promote digestion and absorption of nutrients
(2) Promote the health of intestinal flora
(3) Enhance the body's anti-stress and immune capabilities
(4) As the antifungal agent and antioxidant

Packaging & Storage Of Citric Acid

Kraft paper bag, plastic woven bag, paper-plastic composite bag, container bag; 25kg/bag, 500kg/bag, 1000kg/bag, etc.

Store in a dry, ventilated, and pollution-free environment at room temperature. Avoid direct sunlight, should not be stacked in the open air.

Advantage Of Polifar Citric Acid

Polifar Group has 10 years of experience in food ingredients such as sweeteners, preservatives, acidity regulators, and humectants, with an annual export revenue of 41 million US dollars. Passed FDA, Fami-QS, ISO9001, HALAL certification. In addition, Polifar has a complete operating system (supply, production management, packaging, inventory, pre-factory inspection, and after-sales service), which can bring customers a safe trading environment. Our employees have rich experience in food ingredients and know the market situation very well. We can update the market situation for you in time, such as market demand and product price changes.

2023 FDA

HALAL

COA-CAA

COA-CAM

ISO 2021

Citric Acid Catalog

Name	Size	Downloads	Update	Thumbnail	Download
COA-citric acid anhydrou.pdf	626KB	555	2023-02-22		Download
COA-citric acid monohydrate.pdf	274KB	418	2023-02-22		Download

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Citric Acid Introduction