Calcium citrate

Calcium citrate

Tên sản phẩm Calcium citrate
Số CAS 813-94-5
Công thức phân tử C12H10Ca3O14
Trọng lượng phân tử 498.43 g/mol
Hình thức Bột tinh thể màu trắng đến trắng ngà
Assay 97.5% - 100.5% (on dried basis)
Mất mát khi sấy khô ≤ 1,0%
Kim loại nặng ≤ 10 ppm
Độ hòa tan Slightly soluble in water; soluble in dilute hydrochloric acid and nitric acid; practically insoluble in ethanol
Kích thước hạt 95% through 200 mesh (customizable)
Gói 25 kg net paper bags with PE liner, or as per customer requirement

Calcium citrate Structure

Synonyms: Calcium citrate tribasic, Tricalcium citrate, Calcium salt of citric acid, E333, INS 333

Calcium citrate is the calcium salt of citric acid, a weak organic acid naturally found in citrus fruits. It is produced by neutralizing citric acid with a calcium source, such as calcium hydroxide or calcium carbonate, followed by filtration, drying, and milling. The result is a white, crystalline powder that is odorless and has a slightly alkaline taste. Commercially, it is available in various grades, including food grade, pharmaceutical grade (USP/EP/BP), and technical grade, with the pharmaceutical grade being the most relevant for supplement and medicinal applications.

In the B2B arena, calcium citrate has established itself as a preferred calcium source for dietary supplements, functional foods, and pharmaceutical formulations. Its superior bioavailability compared to calcium carbonate, especially in individuals with low stomach acid, makes it a go-to choice for formulators targeting bone health, women’s health, and senior nutrition. Beyond supplements, it serves as a buffering agent, sequestrant, and firming agent in food and beverage processing, and as a calcium source in medical nutrition and cell culture media. With the global push for clean-label and highly absorbable minerals, calcium citrate continues to gain traction in new product development.

Product Highlights

  • High bioavailability: Calcium citrate is absorbed effectively regardless of gastric acid secretion, making it suitable for a broader population.
  • Excellent safety profile: Manufactured under strict cGMP conditions, with low heavy metal content and consistent purity.
  • Regulatory compliance: Meets USP, EP, BP, and FCC monographs; suitable for use in regulated markets worldwide.
  • Versatile applications: Ideal for tablets, capsules, powders, effervescents, and fortified beverages.
  • Stable supply chain: Produced in ISO-certified facilities with an annual capacity exceeding 5,000 metric tons.
  • Customizable specifications: Particle size, bulk density, and flowability can be tailored to your formulation needs.

Ứng dụng

  • Dietary supplements: calcium tablets, capsules, softgels, and chewables for bone and joint health.
  • Functional foods and beverages: calcium-fortified juices, plant-based milks, and meal replacements.
  • Pharmaceutical formulations: antacids, calcium supplements, and electrolyte solutions.
  • Medical nutrition: enteral and parenteral nutrition products.
  • Food processing: buffering agent, sequestrant, and firming agent in jams, jellies, and canned goods.

Thông số kỹ thuật

Tham số Thông số kỹ thuật
Assay (on dried basis) 97.5% – 100.5%
Loss on drying ≤ 1,0%
Heavy metals ≤ 10 ppm
Arsenic ≤ 3 ppm
Lead ≤ 2 ppm
Mercury ≤ 1 ppm
Particle size 95% through 200 mesh

Ordering & Supply

  • Bao bì: 25 kg net paper bags with PE liner, 500 kg jumbo bags, or as per customer requirement.
  • MOQ: 1,000 kg (flexible for trial orders).
  • Thời gian thực hiện: 3-5 business days (stock items)
  • Tài liệu hướng dẫn: COA, MSDS, TDS, and regulatory support available upon request.

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