Dicalcium Phosphate Dihydrate Excipient

Calcium Hydrogen Phosphate Dihydrate (CaHPO₄·2H₂O) is a white powder that is insoluble in water or ethanol, but freely soluble in dilute hydrochloric acid or dilute nitric acid.Key Specifications: Assay 98.0%–105.0%, chlorides ≤0.05%, sulfates ≤0.2%, lead salts ≤0.0005%, iron salts ≤0.04%, arsenic salts ≤0.0002%, carbonates (no turbidity with hydrochloric acid), insoluble in hydrochloric acid (residue ≤5 mg from 5.0 g sample), loss on ignition 24.5%–26.5% (at 800°C to constant weight), barium salts (no turbidity within 10 minutes).

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Introducción detallada

Dicalcium Phosphate Dihydrate — Excipient

Product Introduction

Basic Information

· Molecular Formula: CaHPO₄·2H₂O

· Appearance: White powder. Insoluble in water or ethanol; freely soluble in dilute hydrochloric acid or dilute nitric acid

· Packaging: 25kg/bag

Specification

Item	Index
Assay	98.0%~105.0%
Chlorides	≤ 0.05%
Sulfates	≤ 0.2%
Lead Salts	≤ 0.0005%
Iron Salts	≤ 0.04%
Arsenic Salts	≤ 0.0002%
Carbonates	To 1.0 g of sample add 2 mL of hydrochloric acid; no turbidity occurs
Insoluble in Hydrochloric Acid	Use 5.0 g of sample; residue is not more than 5 mg
Loss on Ignition	Ignite at 800℃ to constant weight; loss in weight is 24.5%‑26.5%
Barium Salts	Use 0.50 g of sample; no turbidity occurs within 10 minutes

Application

· Tablet Filler: With stable physical and chemical properties and excellent compressibility, it is widely used as diluent for oral tablets, chewable tablets and calcium tablets to improve molding performance for direct compression process

· Medicinal Adsorbent and Flow Aid: It adsorbs grease and trace impurities, improves powder flowability and avoids agglomeration to enhance production stability

· Calcium Supplement Raw Material: Used as raw material for calcium preparations to participate in bone formation and calcium supplementation for calcium deficiency improvement

· pH Buffer Stabilizer: Adjust pH value of solid preparations, maintain system stability and extend shelf life of medicines

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