醋酸锌

Description

Zinc Acetate · CAS 557-34-6 · Zn(C2H3O2)2. UNII H2ZEY72PME. Melting Point: 237 °C; Density: 1.735 @25 °C.

Identification

CAS Registry Number	557-34-6
PubChem CID	11192
Molecular formula	Zn(C2H3O2)2
IUPAC name	zinc diacetate
UNII (FDA)	H2ZEY72PME

Computed Descriptors

Molecular Weight	183.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	181.955750
Monoisotopic Mass	181.955750
Topological Polar Surface Area	80.3
Heavy Atom Count	9
Formal Charge	0
Complexity	25.5

Physical & Chemical Properties

Melting Point	237 °C
Density	1.735 @25 °C

Physical description & handling notes

• Obtained in both anhydrous form and as a dihydrate. Both are white crystalline solids. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit spread to the environment. Used to preserve wood, to make other zinc compounds, as a food and feed additive.
• Dry Powder; Liquid
• Colourless crystals or fine, off-white powder
• Colorless, white to greyish-white, or yellowish solid; [HSDB] White solid; [CAMEO] White powder; [MSDSonline]
• Exists in two crystalline forms, alpha (wurtzite) and beta (sphalerite)
• White to grayish-white or yellowish powder colorless cubic crystals

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: Use unspecified FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Cosmetic ingredients (Zinc Acetate) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Antimicrobial
GHS notification summary	49.2% (348 / 708)

GHS Hazard Classification

GHS notification summary	49.2% (348 / 708)
Reported hazard statements	H302 (39.7%), H318 (20.6%), H319 (11.4%), H400 (32.9%), H410 (16.4%), H411 (23.2%)

Documented Uses

• Used as a wood preservative, mordant in dyeing, antiseptic, feed additive, cross-linking agent for polymers, catalyst, waterproofing agent, therapeutic styptic and astringent, and topical fungicide; Also used to make glazes for porcelain, to treat Wilson's disease, in dental cement for temporary fillings, in tobacco smoke filters, in adhesives for food contact, and as a reagent in testing for albumin, tannin, urobilin, phosphate, and blood; [HSDB] Used to make other zinc compounds; [CAMEO]
• Working with Glues and Adhesives [Category: Other]
• Applying Wood Preservatives [Category: Other]
• Using Disinfectants or Biocides [Category: Clean]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Farming (Feed Additives) [Category: Industry]

Synonyms

ZINC ACETATE; 557-34-6; Zinc diacetate; Zinc(II) acetate; Dicarbomethoxyzinc; Acetic acid, zinc(II) salt; Acetic acid, zinc salt; Zinc acetate anhydrous; Siltex CL 4; Anhydrous Zinc Acetate; DTXSID8038770; H2ZEY72PME; AI3-04465; NSC-75801; DTXCID6018770; CHEBI:62984

Frequently Asked Questions

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

CAS 557-34-6; molecular formula Zn(C2H3O2)2; molecular weight — g/mol.

What other names is Zinc Acetate known by?

ZINC ACETATE, 557-34-6, Zinc diacetate, Zinc(II) acetate, Dicarbomethoxyzinc, Acetic acid, zinc(II) salt.

What is the regulatory status of Zinc Acetate?

Documented regulatory listings: FDA Substance added to food: Use unspecified; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Cosmetic ingredients (Zinc Acetate) -> CIR (Cosmetic Ingredient Review).

Is Zinc Acetate classified as hazardous?

49.2% of GHS notifications report no hazard classification (348 of 708).

What are the key physical properties of Zinc Acetate?

Melting Point: 237 °C; Density: 1.735 @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.