CAS 7789-77-7 Calcium hydrogenphosphate dihydrate

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Calcium hydrogenphosphate dihydrate

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Catalog Number

ACM7789777

CAS Number

7789-77-7

Product Name

Calcium hydrogenphosphate dihydrate

Structure

Category

Biocompatible Ceramics

Synonyms

CALCII HYDROGENOPHOSPHAS DIHYDRICUS; CALCIUM HYDROGEN PHOSPHATE - 2 - HYDRATE; CALCIUM HYDROGENPHOSPHATE DIHYDRATE; CALCIUM MONOHYDROGEN PHOSPHATE DIHYDRATE; CALCIUM PHOSPHATE DIBASIC, DIHYDRATE; DIBASIC CALCIUM PHOSPHATE DIHYDRATE, DICALCIUM PHOSPHATE DIHYDRATE

IUPAC Name

calcium;hydrogen phosphate;dihydrate

Molecular Weight

172.09g/mol

Molecular Formula

CaH5O6P

Canonical SMILES

O.O.OP(=O)([O-])[O-].[Ca+2]

InChI

InChI=1S/Ca.H3O4P.2H₂O/c;1-5(2,3)4;;/h;(H3,1,2,3,4);2*1H2/q+2;;;/p-2

InChI Key

XAAHAAMILDNBPS-UHFFFAOYSA-L

Melting Point

109°C -H₂O

Density

2.31

Appearance

White crystalline solid

Application

Calcium hydrogenphosphate dihydrate serves as an essential calcium salt and hydrate with diverse applications. Primarily used as an excipient and a nutritional supplement in the health food sector, it provides calcium and phosphorus. Its unique properties, like good compaction and flow, make it beneficial in pharmaceutical products, especially in tablet formulations. The compound is characterized by its brittle fracture deformation, allowing a smoother transition from lab to production scales, although it requires lubrication during tableting due to its abrasive nature. For this purpose, about 1% w/w of magnesium stearate or sodium stearyl fumarate is often used. There are two main particle-size grades, with the coarse-grade being utilized in direct-compression formulations. Notably stable and nonhygroscopic at room temperature, calcium hydrogenphosphate dihydrate may lose water of crystallization under specific conditions, necessitating careful packaging. Additionally, it finds use in toothpaste and dentifrice formulations for its abrasive qualities.

Assay

0.98

Complexity

46.5

Covalently-Bonded Unit Count

EC Number

616-542-1

Exact Mass

171.944966g/mol

Formal Charge

Heavy Atom Count

MDL Number

MFCD00149621

MeSH Entry Terms

brushite;calcium monohydrogen phosphate dihydrate;calcium phosphate, dibasic;calcium phosphate, dibasic, dihydrate;calcium phosphate, dihydrate (1:1);dibasic calcium phosphate dihydrate;dicalcium phosphate;dicalcium phosphate anhydrous;dicalcium phosphate dihydrate

Monoisotopic Mass

171.944966g/mol

Packaging

1 ton

Refractive Index

1.5394

Rotatable Bond Count

Stability

Stable. Incompatible with acids.

Storage Conditions

Keep tightly closed.

UNII