羟基八氧化二锌重铬酸钾(1-)

Description

potassium hydroxyoctaoxodizincatedichromate(1-) · CAS 11103-86-9 · Cr2HO9Zn2K. UNII NS00075776. Density: 3.40 to 3.60 (USCG, 1999); Density: 3.5 g/cu cm; Density: 3.5 g/cm³.

Identification

CAS Registry Number	11103-86-9
PubChem CID	25466
Molecular formula	Cr2HO9Zn2K
IUPAC name	potassium;dizinc;bis(dioxido(dioxo)chromium);hydroxide
UNII (FDA)	NS00075776

Computed Descriptors

Molecular Weight	418.9
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	9
Rotatable Bond Count	0
Exact Mass	417.66195
Monoisotopic Mass	415.66506
Topological Polar Surface Area	162
Heavy Atom Count	14
Formal Charge	0
Complexity	62.2

Physical & Chemical Properties

Density	3.40 to 3.60 (USCG, 1999)
Density	3.5 g/cu cm
Density	3.5 g/cm³
pH	pH = 7.5

Physical description & handling notes

• Zinc potassium chromate appears as a greenish-yellow odorless solid. used as a pigment Denser than water. Toxic by ingestion. Commonly but mistakenly called zinc chromate.
• Dry Powder
• Greenish-yellow solid; [Hawley] Yellow powder that is sparingly soluble; [Ullmann]
• GREEN-TO-YELLOW POWDER.
• Yellow powder
• Green-to-yellow powder

GHS Hazard Classification

Reported hazard statements	H302 (100%), H317 (100%), H330 (65.9%), H335 (65.9%), H341 (75.1%), H350 (100%), H400 (99.4%), H410 (99.4%)

Documented Uses

• Used for rust-inhibiting coatings and artists' paints; [Hawley]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• ... Zinc chromates are employed primarily in priming paints used for metals, for which they provide resistance against corrosion. /Zinc chromates/
• Zinc green pigment component; anti-corrosion pigment (primer paint)
• Zinc potassium chromates are prepared by a reaction between a solution of sodium dichromate, a slurry of zinc oxide and a solution of potassium chloride. /Zinc potassium chromates/
• Zinc oxide + potassium dichromate + sulfuric acid (reaction)

Synonyms

ZINC POTASSIUM CHROMATE; Potassium zinc chromate hydroxide; Chromic acid, potassium zinc salt (2:2:1); DTXSID2026313; Citron yellow; RefChem:1101164; DTXCID706313; dizinc(2+) ion potassium bis(dioxochromiumbis(olate)) hydroxide; Potassium zinc chromate; 11103-86-9; Potassium hydroxyoctaoxodizincatedichromate(1-); potassium;dizinc;dioxido(dioxo)chromium;hydroxide; 37224-57-0; CCRIS 4743; HSDB 1060; EINECS 234-329-8

Frequently Asked Questions

What are the CAS number and molecular formula of potassium hydroxyoctaoxodizincatedichromate(1-)?

CAS 11103-86-9; molecular formula Cr2HO9Zn2K; molecular weight — g/mol.

What other names is potassium hydroxyoctaoxodizincatedichromate(1-) known by?

ZINC POTASSIUM CHROMATE, Potassium zinc chromate hydroxide, Chromic acid, potassium zinc salt (2:2:1), DTXSID2026313, Citron yellow, RefChem:1101164.

Is potassium hydroxyoctaoxodizincatedichromate(1-) classified as hazardous?

Hazard statements reported: H302, H317, H330, H335, H341.

What are the key physical properties of potassium hydroxyoctaoxodizincatedichromate(1-)?

Density: 3.40 to 3.60 (USCG, 1999); Density: 3.5 g/cu cm; Density: 3.5 g/cm³; pH: pH = 7.5.

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.