Citric Acid Supplier

# Carbton

Citric Acid Suppliers & Manufacturers from China

C₆H₈O₇

Citric Acid - Food Grade & Industrial Grade

Industrial Field

Water treatment: remove metal ions (such as Ca²⁺, Mg²⁺) from scale, used for boiler water softening
Electroplating industry: as a chelating agent, stabilize metal ions (such as copper, nickel) in the plating solution.
Plastics and resins: produce environmentally friendly plasticizers (such as tributyl citrate, replacing phthalates).
Metal cleaning: dissolve metal surface oxides in an acidic environment, used for stainless steel pickling.

Food Field

Feed additives: adjust the acidity of livestock and poultry feed and promote digestion and absorption (such as piglet feed).
Soil improvement: chelate heavy metals (such as lead and cadmium) in the soil to assist in the repair of polluted soil.
Biodegradable materials: used to synthesize comonomers of degradable plastics such as polylactic acid (PLA).

Citric Acid Information

The following are multi-dimensional labels about citric acid (C₆H₈O₇), covering properties, applications, classifications, etc., which can be selected according to specific scenarios:

Basic Attribute Tags

Chemical formula: C₆H₈O₇/ C₆H₈O₇・H₂O. Molecular weight: 192.12/ 210.14. CAS number: 77-92-9. Anhydrous: Colorless translucent crystals or white powder, odorless, with a strong acid taste. Monohydrate: White granules or crystalline powder, easy to deliquesce.

Chemical Properties

Dissociation characteristics: Dissociate H⁺ in water step by step to form citrate ions (C₆H₅O₇³⁻). When heated to 100℃, it loses crystal water, and above 175℃, it decomposes into water, carbon dioxide, and acetic acid, etc. Condensation and dehydration reactions can occur at high temperatures to produce citraconic acid, itaconic acid, etc.

Physical Properties

Density: 1.665 g/cm³ (anhydrous) Anhydrous melting point: 153℃ Monohydrate melting point: 70-75℃ (lost crystal water when heated) Easily soluble in water (solubility about 59g/100g water at 20℃) Soluble in ethanol (50g/100mL) and ether, slightly soluble in benzene

Classification

Food and beverage industry (main use), pharmaceutical and daily chemical industry, industrial and chemical industry, agriculture and environmental protection.

Safety and Storage

Store in a sealed, cool, dry, ventilated place away from fire and oxidants. Food-grade products should not be mixed with toxic and hazardous substances. Moisture-proof packaging (especially monohydrate) to prevent moisture absorption and agglomeration.

Related Industries

Upstream raw materials: carbohydrates, Aspergillus niger, sulfuric acid. Downstream products: citrate, citrate esters, pharmaceutical intermediates, cosmetic raw materials.

Citric Acid Standards

> Chinese standards:

GB 1886.235-2016 “National Food Safety Standard Food Additives Citric Acid”.
GB 5009.141-2016 “National Food Safety Standard Determination of Synthetic Colorants Such as Allura Red and Acid Red in Food” (involving detection methods).

> International standards:

US FDA: Approved as GRAS (Generally Recognized as Safe) food additive.
EU regulations: EC No 1333/2008 allowed as food additive (No. E330).

CARBTON

Our Products

Additives Manufacturers from China

CARBTO invites customers from all over the world to visit. We will arrange special personnel to accompany you to gain an in-depth understanding of the production line operation, process details and quality control process, and to intuitively experience our R&D strength and production standards. We also look forward to communicating with you face to face about your needs and exploring new possibilities for cooperation.

# Carbton