Description

Magnesium Hydrogen Phosphate Trihydrate is a high-purity inorganic salt essential for applications requiring a bioavailable source of magnesium and phosphate ions. Its controlled composition and consistent quality make it a critical functional ingredient in pharmaceutical and nutritional formulations. This compound is primarily sought by manufacturers in the pharmaceutical, food & beverage, and specialty chemical industries for its role in product stabilization and nutrient fortification.

Application

• Pharmaceutical Excipient & Active Ingredient: Used as a buffering agent, tablet disintegrant, and a source of magnesium in mineral supplement tablets and capsules.
• Food & Nutritional Supplement: Serves as a nutrient fortifier in dietary supplements, infant formula, and functional foods to enhance magnesium and phosphorus content.
• Dental Care Products: Incorporated into toothpaste and oral care gels for its remineralization properties, helping to strengthen tooth enamel.
• Animal Feed Additive: Acts as a nutritional supplement in premixes to support bone development and metabolic functions in livestock and poultry.
• Laboratory Reagent: Utilized in analytical chemistry and life science research as a standard or buffer component.
• Specialty Chemical Intermediate: Employed in the synthesis of other magnesium phosphates and fine chemicals.

Basic Information

Product Name	Magnesium Hydrogen Phosphate Trihydrate
CAS No.	7782-75-4
Molecular Formula	MgHPO₄·3H₂O
Molecular Weight	174.33 g/mol
Synonyms	Dibasic Magnesium Phosphate Trihydrate; Magnesium Phosphate Dibasic Trihydrate; Magnesium Hydrogen Phosphate 3-Hydrate; Secondary Magnesium Phosphate Trihydrate; Phosphoric Acid, Magnesium Salt (1:1), Trihydrate; MAGNESIUM PHOSPHATE, DIBASIC, TRIHYDRATE; MgHPO4·3H2O
EINECS	231-823-5

Quality Control

Our Magnesium Hydrogen Phosphate Trihydrate is manufactured under a strict quality management system. Each batch is tested to ensure it meets relevant specifications for pharmaceutical (USP/EP), food (FCC), or technical grades. A comprehensive Certificate of Analysis (COA) documenting purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture and caking.

Specification

Item	Specification
Appearance	White or almost white crystalline powder
Identification (IR)	Conforms to standard
Assay (MgHPO₄·3H₂O)	98.0% - 102.0%
pH (5% suspension)	6.0 - 8.0
Loss on Drying	28.0% - 32.0%
Chloride (Cl)	≤ 0.05%
Sulfate (SO₄)	≤ 0.05%
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.