ZINC chromate

Base Information

• Chemical Name: ZINC chromate
• CAS No.: 13530-65-9
• Deprecated CAS: 1308-13-0,1328-67-2,14675-41-3,57486-12-1,1328-67-2,14675-41-3
• Molecular Formula: CrO4H2Zn
• Molecular Weight: 183.39
• European Community (EC) Number: 236-878-9,609-398-6
• ICSC Number: 0811
• UN Number: 3288,3077
• UNII: 05F2837HUF
• DSSTox Substance ID: DTXSID7047485
• Wikipedia: Zinc_chromate
• Wikidata: Q204701
• NCI Thesaurus Code: C45893
• Mol file: 13530-65-9.mol

Synonyms:zinc chromate;zinc chromate (H2Cr2O7), Zn salt (1:1);zinc chromate (H2Cr2O7), Zn salt (1:1), trihydrate;zinc chromate (Zn2(CrO4)O), monohydrate

Chemical Property of ZINC chromate

Chemical Property:

• Appearance/Colour: Yellow powder
• Melting Point: 316ºC
• PSA: 80.26000
• Density: 3.4 g/cm³
• LogP: -0.47770
• Water Solubility.: Insoluble in water.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 179.849305
• Heavy Atom Count: 6
• Complexity: 62.2
• Transport DOT Label: Poison

Purity/Quality:

98%,99%, ^*data from raw suppliers

Zinc chromate ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T,N
• Hazard Codes: T,N
• Statements: 8-43-49-50/53
• Safety Statements: 17-45-53

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Chromium Compounds, Inorganic
• Canonical SMILES: [O-][Cr](=O)(=O)[O-].[Zn+2]
• Inhalation Risk: Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
• Effects of Short Term Exposure: The substance is irritating to the eyes, skin and respiratory tract.
• Effects of Long Term Exposure: The substance may have effects on the blood, bone marrow, central nervous system, peripheral nervous system and kidneys. Repeated or prolonged inhalation may cause nasal ulceration. This may result in perforation of the nasal septum. Repeated or prolonged contact may cause skin sensitization. This substance is carcinogenic to humans. May cause toxicity to human reproduction or development.
• Description: Zinc Chromate is a zinc salt of chromate. As a corrosion inhibitor, it is used industrially in chromate conversion coatings, which was developed by the Ford Motor Company in the 1920s. Its major application is used as a coating over iron or aluminum materials in industrial painting with corrosion resistance. It is also used in spray paints, artists'paints, pigments in varnishes, metal surface treatment and in making linoleum. Its putty form can be used as sealant in addition to two O-rings between sections of the failed solid rocket booster on Space Shuttle Challenger. However, it was concerned that it is a potential carcinogen, which can induce chromosome instability and DNA double-strand breaks.
• Uses: Zinc chromate is also called zinc yellow, this pigment is identified as Pigment Yellow 36, as opposed to the lithopone version incorpo- rating barium sulfate which is Pigment Yellow 36:1. It is a bright, green shade of yellow made by the precipitation of hydrated zinc potassium chromate from the reaction of so- dium bichromate with zinc oxide and potassium chloride. The lithopone version is merely a co-precipitate of zinc chromate onto barium sulfate to give an extended pigment that carries the Colour Index name of Pigment Yellow 36:1. Used primarily in corrosion-inhibiting coatings, its poor tinctorial strength and poor resistance to acid and alkali severely limits this pigment's use elsewhere. Zinc yellow has the composition 4ZnCrO4 ? K2O ? H2O. Two other yellow chromate pigments are strontium chromate and barium chromate, both used as corrosion inhibitors. Zinc chromate is used in pigments, rubber, linoleum manufacturing, metal surface treatment, electroplating intermediates, research and development. It finds its application as an useful metal for preventing corrosion when applied to other metals.