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Basic Information
 
Item Monocalcium Phosphate Anhydrous Monocalcium Phosphate  Monohydrate
Product Full Name Monocalcium Phosphate, Anhydrous Monocalcium Phosphate, Monohydrate
Abbreviation MCP (Anhydrous) MCP (Monohydrate)
CAS No. 7758-23-8 10031-30-8
E Number E 341(i)
Molecular Formula Ca(H₂PO₄)₂ Ca(H₂PO₄)₂·H₂O
Molecular Weight 234.05 252.07
Appearance White crystalline powder White crystalline powder or granules
Solubility Slightly soluble in water, soluble in dilute acids
pH Value (aqueous solution) 3.0 ~ 4.0
Available Grade Feed Grade, Food Grade
Executive Standard FCC, E 341(i), GB 1889 (Feed)
Certifications ISO9001, HALAL, KOSHER, HACCP, REACH
Core Functions Calcium & phosphorus fortifier, leavening agent, pH regulator
 

Product Overview 

Monocalcium Phosphate (MCP) is a high-purity acidic calcium phosphate additive, available in anhydrous and monohydrate forms. It features good solubility in dilute acids, stable chemical properties, and wide compatibility with feed and food ingredients.

Its primary function is calcium and phosphorus fortification. MCP supplies highly bioavailable calcium and phosphorus, which are essential minerals for bone development, teeth formation and metabolic processes. It is widely used in compound feed to balance the dietary calcium-phosphorus ratio, improve growth performance and reduce nutritional deficiency.

In food-grade applications, MCP acts as an acidic leavening agent. It reacts with bicarbonate during baking to release carbon dioxide, creating a fluffy and uniform texture in cakes, biscuits and ready-to-use baking mixes. It also serves as a mild pH regulator in food formulations.

Anhydrous MCP and monohydrate MCP deliver the same functional performance. The main difference is crystal water content. Anhydrous MCP has no crystal water and is suitable for formulations with strict moisture control. Monohydrate MCP is more commonly used in conventional feed and food production.

MCP is widely applied in animal feed, bakery products, baking mixes and nutrient-fortified food.

 

Character

Monocalcium Phosphate is supplied as a white crystalline powder or granules in both anhydrous and monohydrate forms. It is odorless, stable under normal storage conditions, and slightly soluble in water but readily soluble in dilute acids.

MCP has high bioavailability of calcium and phosphorus, which makes it an effective mineral source in feed nutrition. Its acidic nature also enables it to function as a leavening acid in bakery systems. The product is compatible with most feed raw materials and food ingredients, with low heavy metal and impurity content meeting international safety specifications.

Main Functions

Calcium & Phosphorus Fortifier (Core Function) Supply bioavailable calcium and phosphorus to animal feed, balance dietary calcium-phosphorus ratio, support bone development, teeth formation and growth performance of livestock, poultry and aquaculture animals.

Leavening Agent Act as an acidic leavening component in bakery formulations. It reacts with bicarbonate to release carbon dioxide during baking, creating fluffy texture and uniform volume in cakes, biscuits and baking mixes.

pH Regulator Provide mild acidity to adjust and stabilize the pH of food and feed systems.

 

Applications

1Animal Feed (Core Application) Added to compound feed for pigs, poultry, cattle and aquaculture to supplement calcium and phosphorus, prevent nutritional deficiency, improve feed utilization and promote healthy bone development.

2Bakery Products & Baking Mixes Used as an acidic leavening agent in cakes, biscuits, bread and ready-to-use baking powder mixes, reacting with sodium bicarbonate to produce carbon dioxide and achieve light, fluffy texture.

3Nutrient-Fortified Food Serve as a calcium and phosphorus fortifier in fortified food, beverages and dietary supplement products.

4Other Industrial Uses Applied in certain industrial and technical formulations requiring acidic calcium phosphate.

 

Packaging & Storage

Packaging: 25kg kraft paper bag with inner PE liner, 1000kg jumbo bag. Both anhydrous MCP and monohydrate MCP support customized packaging.

Storage: Store in cool, dry, ventilated warehouse, keep bags sealed to avoid moisture absorption and contamination.

Shelf Life: 24 months under proper storage conditions.

 
INDEXES GB25559-2010 FCC-V
Assay(As Ca),% 16.8-18.3 16.8-18.3
Pb, ≤% 0.0002 0.0002
As, ≤% 0.0003 0.0003
Heavy metals(As Pb), ≤% 0.001 –
Fluoride, ≤% 0.0025 0.005
Residue on ignition, % 14.0-15.5 14.0-15.5
Fluoride, ≤% 0.0025 0.005
Residue on ignition, % 14.0-15.5 14.0-15.5
     

FEED GRADE   Monocalcium Phosphate  MCP

Parameters

Standard

Appearance

Gray powder / granular

Total phosphorus         ≥%

22.0

Water Soluble phosphorus   ≥%

20.0

Relative Solubility in 2% citric acid    ≥%

98.0

Relative Solubility in water     ≥%

75.0-90.0

Calcium        ≥%

13.0

Fluoride       ≤mg/kg

1800.00

Arsenic       ≤mg/kg

20.0

Lead          ≤mg/kg

30.0

Cadmium         ≤mg/kg

10.0

Chromium     ≤mg/kg

30.0

Free Moisture    ≤%

0.4

pH (2.4g/l)

3.0-4.0

Dioxins(EU standard)    ≤%

1.0

Mercury(EU standard)   ≤mg/kg

0.1

 

 

 

Product Name: Calcium dihydrogen phosphate Other Name: Phosphoric acid,calcium salt (2:1);Acid calcium phosphate;Calcium phosphate monobasic;Calcium monobasic phosphate;Calcium dihydrogen phosphate;Calcium hydrogen phosphate (CaH4(PO4)2);Calcium phosphate (CaH4(PO4)2);Calcium tetrahydrogen orthophosphate;Monocalcium phosphate [CaH4(PO4)2];Calcium tetrahydrogen phosphate;Calcium superphosphate;Calcium primary phosphate;Calcium bis(dihydrogen phosphate);Calcium biphosphate;Calcium dihydrogen orthophosphate;Calcium bis(orthophosphate);Monocalcium phosphate;Monocalcium dihydrogen phosphate;Calcium diorthophosphate;Monocalcium phosphate (Ca(H2PO4)2);Calcium phosphate (1:2);Calcium phosphate (Ca(H2PO4)2);Monobasic calcium phosphate;Calcium phosphate,primary;Calcium hydrogen phosphate (Ca(H2PO4)2);V 90;C 38 (phosphate);C 38;Monocalcium orthophosphate;Calcium orthophosphate monobasic;HT Monocalcium Phosphate;Fabutit 313
CAS No.: 7758-23-8 Molecular Formula: Ca.2H3O4P
InChIKeys: InChIKey=UUVBYOGFRMMMQL-UHFFFAOYSA-N Molecular Weight: 234.05
Exact Mass: 233.900726 EC Number: 231-837-1
UNII: 701EKV9RMN DSSTox ID: DTXSID2044262
Color/Form: SHINING TRICLINIC PLATES, CRYSTALLINE POWDER OR GRANULES|COLORLESS, PEARLY SCALES OR POWDER HScode: 2835260000
Categories: Leavening Agent
PSA: 161 XLogP3: -0.98080
Appearance: Crystals Density: 3 @ Temp: 18 °C”>2.220 g/cm3 @ Temp: 18 °C
Boiling Point: 158ºC at 760 mmHg Refractive Index: Index of refraction: 1.5292, 1.5176, 1.4392. /Calcium phospate monobasic monohydrate/
Water Solubility: SOL IN DIL HYDROCHLORIC ACID; MODERATELY SOL IN WATER; SOL IN NITRIC ACID OR ACETIC ACID Storage Conditions: Keep tightly closed in a cool place in a tightly closed container.
Toxicity: Oral-rat LD50: 3986 mg/kg; Oral-Mouse LD50: 15250 mg/kg Flammability characteristics: Nonflammable
Taste: Strong acid taste Experimental Properties: NON-HYGROSCOPIC WHEN PURE|LOSES WATER @ 100 °C|DECOMP @ 200 °C|Decomposes at 203 °C. /Calcium phosphate monobasic monohydrate/

Classification of the substance or mixture

Serious eye damage, Category 1

GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Danger

Hazard statement(s)

H318 Causes serious eye damage

Precautionary statement(s)
Prevention

P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…

Response

P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P317 Get medical help.

Storage

none

Disposal

none

Other hazards which do not result in classification

no data available

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.