Magnesium phosphate

Description

Magnesium phosphate · CAS 10043-83-1 · Mg3O8P2. UNII XMK14ETW2D. Melting Point: 1,184 °C.

Identification

CAS Registry Number	10043-83-1
PubChem CID	24439
Molecular formula	Mg3O8P2
IUPAC name	trimagnesium diphosphate
UNII (FDA)	XMK14ETW2D

Computed Descriptors

Molecular Weight	262.86
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	0
Exact Mass	261.8619660
Monoisotopic Mass	261.8619660
Topological Polar Surface Area	173
Heavy Atom Count	13
Formal Charge	0
Complexity	36.8

Physical & Chemical Properties

Melting Point	1,184 °C

Physical description & handling notes

• Odorless iridescent solid; [HSDB] White odorless powder; [MSDSonline]
• RHOMBIC PLATES
• odorless
• tasteless
• INSOL IN COLD OR HOT WATER; INSOL IN LIQUID AMMONIA; SOL IN AMMONIUM SALT SOLN
• Crystallizes with 5, 8, and 22 H2O /molecules/ ... salts are practically insoluble in water but readily soluble in acids; density (octahydrate): 2.19; density (22 H2O): 1.66

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: NUTRIENT SUPPLEMENT, PH CONTROL AGENT, STABILIZER OR THICKENER FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ANTICAKING_AGENT: Food Additives MAGNESIUM PHOSPHATE, TRIBASIC Group MTDI for phosphorus from all sources, expressed as P. TRS 683-JECFA 26/25
GHS notification summary	100% (125 / 125)

GHS Hazard Classification

GHS notification summary	100% (125 / 125)
Reported hazard statements	H315 (100%), H319 (100%), H335 (100%), H302 (78.6%), H311 (78.6%), H314 (78.6%), H331 (78.6%)

Documented Uses

• CIR ingredient: Magnesium Phosphate
• CIR ingredient: Trimagnesium Phosphate
• Octahydrate found as the mineral bobierrite; [Merck Index] Used as a plant food, dentifrice polishing agent, stabilizer for plastics, food additive, dietary supplement, anti-caking agent for silicate detergents and table salt, stabilizer for calcium phosphate dihydrate, and antacid; [HSDB]
• DENTIFRICE POLISHING AGENT; ADSORBENT; STABILIZER FOR PLASTICS; FOOD ADDITIVE AND DIETARY SUPPLEMENT.
• It is used as anticaking agent for silicate-containing cleaning agents and table salt and as a stabilizer for CaHPO4.2H20.
• Food Additives -> ANTICAKING_AGENT -> JECFA Functional Classes

Synonyms

magnesium phosphate; 10043-83-1; newberyte; RefChem:925189; trimagnesium orthophosphate; DTXSID20904278; 233-142-9; 680-895-8; 684-534-5; Phosphoric acid, magnesium salt; Phosphoric acid, magnesium salt (1:?); 7757-87-1; TRIMAGNESIUM PHOSPHATE; MAGNESIUMPHOSPHATE; Phosphoric acid, magnesium salt (2:3); trimagnesium;diphosphate

Frequently Asked Questions

What are the CAS number and molecular formula of Magnesium phosphate?

CAS 10043-83-1; molecular formula Mg3O8P2; molecular weight — g/mol.

What other names is Magnesium phosphate known by?

magnesium phosphate, 10043-83-1, newberyte, RefChem:925189, trimagnesium orthophosphate, DTXSID20904278.

What is the regulatory status of Magnesium phosphate?

Documented regulatory listings: FDA Substance added to food: NUTRIENT SUPPLEMENT, PH CONTROL AGENT, STABILIZER OR THICKENER; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; ANTICAKING_AGENT: Food Additives.

Is Magnesium phosphate classified as hazardous?

100% of GHS notifications report no hazard classification (125 of 125).

What are the key physical properties of Magnesium phosphate?

Melting Point: 1,184 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.