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Description

Zinc Phosphate · CAS 7779-90-0 · Zn3-(P-O4)2. UNII 1E2MCT2M62. Melting Point: 900 °C; Density: 4 @25 °C.

Identification

CAS Registry Number	7779-90-0
PubChem CID	24519
Molecular formula	Zn3-(P-O4)2
IUPAC name	trizinc diphosphate
UNII (FDA)	1E2MCT2M62

Computed Descriptors

Molecular Weight	386.1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	8
Rotatable Bond Count	0
Exact Mass	383.69116
Monoisotopic Mass	381.69427
Topological Polar Surface Area	173
Heavy Atom Count	13
Formal Charge	0
Complexity	36.8

Physical & Chemical Properties

Melting Point	900 °C
Density	4 @25 °C

Physical description & handling notes

• Liquid; Other Solid; Dry Powder; Liquid; Liquid; CBI; Wet Solid; Dry Powder
• White solid; [Hawley] White odorless powder; [MSDSonline]

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Cosmetic ingredients (Zinc Phosphate) -> CIR (Cosmetic Ingredient Review)

GHS Hazard Classification

Reported hazard statements	H400, H410, H361, H372

Documented Uses

• Used in dental cements, phosphors, and coatings of steel and aluminum; [Hawley] The most important phosphate-containing pigment--reacts with iron to produce a protective film; [Ullmann]
• Aluminum Producing [Category: Industry]
• Steel Producing [Category: Industry]
• Zinc phosphate is used as a dental cement and corrosion resistant coating. (L74)
• Not Known or Reasonably Ascertainable
• Information on 11 consumer products that contain Zinc phosphate in the following categories is provided:

Synonyms

Zinc Phosphate; 7779-90-0; Trizinc diphosphate; Zinc orthophosphate; Delaphos; Trizinc phosphate; Tribasic zinc phosphate; Delaphos 2M; Bonderite 40; Granodine 80; Microphos 90; Granodine 16NC; Bonderite 181; Bonderite 880; Zinc acid phosphate; Heucophos ZP 10

Frequently Asked Questions

What are the CAS number and molecular formula of Zinc Phosphate?

CAS 7779-90-0; molecular formula Zn3-(P-O4)2; molecular weight — g/mol.

What other names is Zinc Phosphate known by?

Zinc Phosphate, 7779-90-0, Trizinc diphosphate, Zinc orthophosphate, Delaphos, Trizinc phosphate.

What is the regulatory status of Zinc Phosphate?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Cosmetic ingredients (Zinc Phosphate) -> CIR (Cosmetic Ingredient Review).

Is Zinc Phosphate classified as hazardous?

Hazard statements reported: H400, H410, H361, H372.

What are the key physical properties of Zinc Phosphate?

Melting Point: 900 °C; Density: 4 @25 °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.