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Calcium Hydrogen Phosphate (Dicalcium Phosphate, DCP)

This odorless, white crystalline powder offers exceptional stability, low hygroscopicity, and neutral pH, making it ideal for diverse uses in food, feed, and beyond.
  • aozun

  • Calcium Hydrogen Phosphate

  • White monoclinic crystalline powder

  • 7757-93-9

  • CaHPO4•2H2O

  • 172

  • 231-826-1

Availability:

Product Description

What Is Calcium Hydrogen Phosphate?

Calcium Hydrogen Phosphate is an inorganic calcium phosphate commonly known as Dicalcium Phosphate, Dibasic Calcium Phosphate or DCP. It is supplied as a white powder or granule in anhydrous and dihydrate forms.

Depending on its grade and specification, DCP may be used as a calcium and phosphorus source, food-processing ingredient, feed material, pharmaceutical excipient or functional mineral ingredient.

Food, feed and pharmaceutical applications require the appropriate regulated grade. One grade should not be assumed suitable for every application.

Calcium Hydrogen Phosphate Product Information

Item

Anhydrous DCP

DCP Dihydrate

Chemical formula

CaHPO₄

CaHPO₄·2H₂O

Common CAS number

7757-93-9

7789-77-7

Molecular weight

136.06 g/mol

172.09 g/mol

Appearance

White powder or granules

White powder, crystals or granules

Solubility

Sparingly soluble in water

Sparingly soluble in water

Product type

Inorganic phosphate salt

Hydrated inorganic phosphate salt

The order specification, product label and Certificate of Analysis should clearly identify the required hydration form.

Is Calcium Hydrogen Phosphate Organic or Inorganic?

Calcium Hydrogen Phosphate is inorganic. It consists of calcium ions and hydrogen phosphate ions and contains no carbon-based organic structure.

Commercially, it is generally classified as an inorganic phosphate, functional mineral ingredient or fine inorganic chemical. It is supplied as a finished ingredient rather than a chemical synthesis intermediate.

Which Form and Grade Should Buyers Select?

Anhydrous Calcium Hydrogen Phosphate

Anhydrous DCP contains no crystallization water. It may be selected where lower loss on drying, controlled mineral content or specific formulation behavior is required.

Calcium Hydrogen Phosphate Dihydrate

DCP dihydrate contains two molecules of crystallization water. Its molecular weight and drying-loss specification differ from those of the anhydrous form.

The two forms should not be substituted solely on an equal-weight basis without reviewing the formulation and elemental calcium and phosphorus contribution.

Available Commercial Grades

Common grades include:

  • Food grade

  • Feed grade

  • Pharmaceutical or excipient grade

  • Oral-care grade

  • Industrial grade

  • Reagent grade

The required regulatory standard and application must be confirmed before quotation. Food-grade approval does not automatically establish pharmaceutical or feed compliance.

Which Specifications Should Buyers Compare?

Specification

Purchasing Importance

Hydration form

Distinguishes anhydrous DCP from DCP dihydrate

Assay

Confirms calcium hydrogen phosphate content

Calcium content

Important for mineral and feed formulations

Phosphorus content

Critical for feed and nutritional formulations

Loss on drying or ignition

Helps verify hydration and moisture

Fluoride

Important for food and feed grades

Arsenic and lead

Required for regulated applications

Acid-insoluble matter

Indicates unwanted insoluble material

Particle size

Influences blending, flow and processing

Bulk density

Affects packaging and formulation handling

Microbiological limits

May be required for food or pharmaceutical grades

The contractual specification and COA should identify the hydration form, analytical method and applicable standard.

Calcium hydrogen phosphate DCP powder and granules undergoing particle size and quality control testing

Where Is Calcium Hydrogen Phosphate Used?

Food Processing

Approved food-grade DCP may be used as a dough conditioner, yeast food, mineral ingredient or processing aid where permitted by local regulations.

Animal Feed

Feed-grade DCP provides calcium and phosphorus in compound feed, mineral premixes and feed concentrates. Buyers should confirm phosphorus, calcium, fluoride, moisture and particle-size requirements.

Pharmaceutical Formulations

A suitable pharmacopeial or excipient grade may be used as a formulation excipient or mineral source. Compliance with the required pharmacopeia and manufacturing standard must be verified.

Oral-Care and Industrial Products

Selected grades may be used in oral-care formulations and other technical applications where controlled particle size, abrasiveness and purity are required.

Application suitability depends on the exact grade and should be evaluated in the customer’s formulation.

How Should Buyers Choose a DCP Supplier?

Before requesting a quotation, provide:

  1. Required anhydrous or dihydrate form

  2. Food, feed, pharmaceutical or industrial application

  3. Required standard or specification

  4. Calcium and phosphorus limits

  5. Fluoride and heavy-metal limits

  6. Powder or granular form

  7. Required particle-size range

  8. Packaging, quantity and destination

A representative sample should be evaluated before commercial production when particle size, flowability or formulation performance is important.

Packaging, Storage and Handling

Calcium Hydrogen Phosphate is commonly supplied in moisture-resistant bags with an inner liner. Exact packaging depends on product grade, order quantity and destination.

Store it in a clean, dry and ventilated location. Keep bags sealed and protect the product from moisture, contamination and incompatible materials.

Avoid generating or breathing dust. Wear suitable eye protection, gloves and respiratory protection when workplace exposure conditions require them. Follow the current Safety Data Sheet.

Why Source Calcium Hydrogen Phosphate from AOZUN?

AOZUN can support buyers with:

  • Anhydrous and dihydrate grade selection

  • Food, feed and industrial specification matching

  • Powder or granular product options

  • COA, SDS and technical-document support

  • Sample evaluation

  • Export packaging and logistics coordination

  • Pre-shipment quality verification

Regulatory status, certification and specification limits should be confirmed for the exact grade and production source before purchase.

Calcium Hydrogen Phosphate FAQ

Is Calcium Hydrogen Phosphate the same as Dicalcium Phosphate?

Yes. Calcium Hydrogen Phosphate, Dicalcium Phosphate and Dibasic Calcium Phosphate are commonly used names for DCP.

Are anhydrous DCP and DCP dihydrate the same product?

They contain the same calcium hydrogen phosphate component but have different water content, molecular weight and drying-loss specifications. The required form must be stated on the order.

Is all DCP food grade?

No. Food-grade material must comply with the applicable food-additive standard and impurity limits. Industrial or feed grades should not automatically be used in food.

What information is needed for a quotation?

Specify the hydration form, grade, standard, particle size, quantity, packaging and destination. For feed applications, also provide the required calcium, phosphorus and fluoride limits.

Request a Calcium Hydrogen Phosphate Quotation

Contact AOZUN with your required DCP form, grade, specification, particle size, order quantity and delivery destination.

We can help compare suitable Calcium Hydrogen Phosphate options and prepare a quotation based on your technical requirements.

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