MONOCALCIUM PHOSPHATE

MONOCALCIUM PHOSPHATE - Names and Identifiers

Name	Calcium bis(dihydrogen phosphate)
Synonyms	Monocalcium Phosphate Calcium tetrahydrogen calcium dihydrophosphate Calcium dihydrogenphoshate Calcium dihydrogen phosphate Calcium Dihydrogen Orthophosphate Calcium bis(dihydrogen phosphate) calcium dihydrogen phosphate hydrate Calcium phosphate monobasic monohydrate Calcium bis(dihydrogenphosphate) Monohydrate
CAS	7758-23-8
EINECS	231-837-1
InChI	InChI=1/Ca.H3O4P.H2O/c;1-5(2,3)4;/h;(H3,1,2,3,4);1H2/q+2;;/p-1

MONOCALCIUM PHOSPHATE - Physico-chemical Properties

Molecular Formula	Ca(H2PO4)2
Molar Mass	234.05
Water Solubility	insoluble
Appearance	Colorless crystalline powder
Storage Condition	Room Temprature
MDL	MFCD00010898
Physical and Chemical Properties	Colorless triclinic crystal or white crystalline powder. The relative density of 2.22(16/4 ℃) soluble in hydrochloric acid, nitric acid, slightly soluble in cold water, almost insoluble in ethanol.
Use	For refractory industry, sewage treatment, etcUsed as food leavening agent and calcium fortifier, wine flavoring agent, fermentation accelerator, etc

MONOCALCIUM PHOSPHATE - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection

MONOCALCIUM PHOSPHATE - Upstream Downstream Industry

Raw Materials

Phosphoric acid
Calcium oxide
Calcium carbonate

MONOCALCIUM PHOSPHATE - Nature

Open Data Verified Data

colorless tri-rant flaky, granular or crystalline powder. Strongly acidic. Crystal water at 100 C, 200 C when the decomposition. Slightly soluble in water, soluble in dilute hydrochloric acid, nitric acid and acetic acid.

Last Update：2025-06-10 22:55:16

MONOCALCIUM PHOSPHATE - Preparation Method

Open Data Verified Data

prepared by crystallization of dicalcium phosphate or tricalcium phosphate after dissolution in phosphoric acid.

Last Update：2025-06-10 22:55:16

MONOCALCIUM PHOSPHATE - Introduction

Pure does not absorb moisture, but contains trace impurities, such as phosphoric acid can deliquesce. It is strongly acidic. The crystal water is lost at 100 ℃ and decomposed at 200 ℃. Slightly soluble in water, soluble in dilute hydrochloric acid, nitric acid and acetic acid.

Last Update：2022-10-16 17:28:40

MONOCALCIUM PHOSPHATE - Application

Open Data Verified Data

feed additives widely used in aquaculture animals and blind poultry. The addition amount in the feed is generally 1% ~ 2%.

Last Update：2025-08-19 16:24:40

MONOCALCIUM PHOSPHATE - Content analysis

about 150g of a sample dried at 0.7 ° C. For 4H was accurately weighed, and 20ml of dilute hydrochloric acid solution (TS-117) was added, then boiled, cooled, and water was added. The content of Calcium dihydrogen phosphate (05212) was determined by analytical method. Each ml of 0.02mol/L EDTA solution corresponds to 4.321mg of acidic calcium pyrophosphate (CaH2P2O7).

Last Update：2024-04-10 22:29:15

MONOCALCIUM PHOSPHATE - Production method

lime method

food grade phosphoric acid is neutralized with lime and the end point is controlled to be Ph 3.2, which is Calcium dihydrogen phosphate.
CaCO3 2H3P04→Ca(H2PO4)2 H20 CO2↑

calcium hydrogen phosphate method

by food grade calcium hydrogen phosphate or food grade tricalcium phosphate and food grade phosphoric acid solution neutralization, control end point for the pH value of 3.2; And then concentrated, crystallized products.
CaHPO4 H3P04→Ca(H2PO4)2

Other

calcium hydrogen phosphate was prepared from phosphoric acid and calcium carbonate and heated to 200 °c.

Calcium dihydrogen phosphate was obtained by neutralizing industrial grade phosphoric acid with milk of lime and controlling the terminal pH to 3.2.

The reaction solution was concentrated, crystallized, aged and dried to obtain a product.

Last Update：2024-04-10 22:29:15

MONOCALCIUM PHOSPHATE - Identification Experiment

take 0.5g of sample, Add 10ml of water to shake and mix, and the solution should be acidic.
take 0.2g of sample, add 5ml of dilute nitric acid test solution (TS-158), heat and dissolve, add 2ml of ammonium molybdate test solution (TS-22), and yellow precipitate should be produced after warming.
take 0.3g of sample, add 9ml of water and 1ml of dilute hydrochloric acid test solution (Ts-117), warm and dissolve, cool and filter, add 3ml of ammonium oxalate test solution (TS-24) to the filtrate, which should produce white precipitate, 5ml of dilute hydrochloric acid test solution was added, and the precipitate was dissolved.

Last Update：2024-04-10 22:29:15

MONOCALCIUM PHOSPHATE - Limit of use

ADI 0-70mg/kg (total phosphate amount in terms of phosphorus, FAO/WHO,2001).
GRAS(FDA,& sect;182.5223,2000).

Last Update：2024-04-09 21:21:28

MONOCALCIUM PHOSPHATE - Preparation Method

calcium hydrogen phosphate method

neutralized by food-grade calcium hydrogen phosphate or food-grade tricalcium phosphate and food-grade phosphoric acid solution, and the end point is controlled as pH 3.2; The product is obtained by concentration and crystallization;

CaHPO4 H3P04→Ca(H2PO4)2

lime method

food grade phosphoric acid is neutralized with lime and the end point is controlled to be Ph 3.2, which is Calcium dihydrogen phosphate.

CaCO3 2H3P04→Ca(H2PO4)2 H20 CO2↑

Last Update：2024-04-09 20:52:54

MONOCALCIUM PHOSPHATE - Application

used in refractory industry, sewage treatment, used as food leavening agent and calcium fortifier, wine flavoring agent, fermentation accelerator, etc.
widely used in aquaculture animals and livestock and poultry animal feed additives.
used as analytical reagent and plastic fixative
used as a plastic stabilizer and an additive for the production of glass, used in the food industry as a baking powder starter, yeast feed, calcium nutritional supplement and coagulant
as a quality improver, it has an effect of increasing the complexing metal ions, pH, increasing the ionic strength, etc. of a food, thereby improving the adhesion and water holding capacity of the food. China's provisions can be used for steamed bread, bread, biscuits dough fermentation, the maximum use (in phosphoric acid) 4g/kg.
Calcium dihydrogen phosphate is used as a leavening agent, dough regulator, buffer, nutritional supplement, emulsifier, stabilizer and other quality improvers, which can improve the complexing metal ions, pH value and ionic strength of food, the adhesion and water holding capacity of food products can be improved. For flour, cakes, cakes, baked goods, fried foods, biscuits, milk powder, cold drinks, ice cream, etc. China provides for bread, biscuits, baking powder, the maximum use of 4.0g/kg (phosphoric acid); Solid beverage 8.0g/kg; Wheat flour can be used according to the production needs of the right amount
nutritional supplement, leavening agent. This product is equivalent to 1g of calcium 0.1855g. When used for special nutritious food, the usage amount is less than 1% of food (calculated as calcium, or less than 5.4% of this product). The acidic component, which is used as a synthetic leavening agent in the manufacture of baked foods such as bread, is hardly soluble in water and is suitable for use as a slow-acting leavening agent. 2g per g of sodium bicarbonate was used.

Last Update：2025-08-19 16:24:40

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MONOCALCIUM PHOSPHATE

Calcium bis(dihydrogen phosphate)

CAS: 7758-23-8

Molecular Formula: Ca(H2PO4)2

MONOCALCIUM PHOSPHATE - Names and Identifiers

MONOCALCIUM PHOSPHATE - Physico-chemical Properties

MONOCALCIUM PHOSPHATE - Risk and Safety

MONOCALCIUM PHOSPHATE - Upstream Downstream Industry

MONOCALCIUM PHOSPHATE - Nature

Open Data Verified Data

MONOCALCIUM PHOSPHATE - Preparation Method

Open Data Verified Data

MONOCALCIUM PHOSPHATE - Introduction

MONOCALCIUM PHOSPHATE - Application

Open Data Verified Data

MONOCALCIUM PHOSPHATE - Content analysis

MONOCALCIUM PHOSPHATE - Production method

lime method

calcium hydrogen phosphate method

Other

MONOCALCIUM PHOSPHATE - Identification Experiment

MONOCALCIUM PHOSPHATE - Limit of use

MONOCALCIUM PHOSPHATE - Preparation Method

calcium hydrogen phosphate method

lime method

MONOCALCIUM PHOSPHATE - Application

Supplier List

MONOCALCIUM PHOSPHATE Request for Quotation

Calcium bis(dihydrogen phosphate)

CAS: 7758-23-8

Molecular Formula: Ca(H2PO4)2

MONOCALCIUM PHOSPHATE - Names and Identifiers

MONOCALCIUM PHOSPHATE - Physico-chemical Properties

MONOCALCIUM PHOSPHATE - Risk and Safety

MONOCALCIUM PHOSPHATE - Upstream Downstream Industry

MONOCALCIUM PHOSPHATE - Nature

Open Data Verified Data

MONOCALCIUM PHOSPHATE - Preparation Method

Open Data Verified Data

MONOCALCIUM PHOSPHATE - Introduction

MONOCALCIUM PHOSPHATE - Application

Open Data Verified Data

MONOCALCIUM PHOSPHATE - Content analysis

MONOCALCIUM PHOSPHATE - Production method

lime method

calcium hydrogen phosphate method

Other

MONOCALCIUM PHOSPHATE - Identification Experiment

MONOCALCIUM PHOSPHATE - Limit of use

MONOCALCIUM PHOSPHATE - Preparation Method

calcium hydrogen phosphate method

lime method

MONOCALCIUM PHOSPHATE - Application

Supplier List

MONOCALCIUM PHOSPHATE