Pentazinc Chromate Octahydroxide

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MDL Number:


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Pentazinc Chromate Octahydroxide
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Pentazinc Chromate Octahydroxide Properties (Theoretical)

Compound Formula CrH8O12Zn5
Molecular Weight 578.95
Appearance Yellow powder
Melting Point 316 °C
Boiling Point N/A
Density 3.6 g/cm3
Solubility in H2O Insoluble
pH 6.9-7.1
Exact Mass 577.58038 g/mol
Monoisotopic Mass 571.58779 g/mol

Pentazinc Chromate Octahydroxide Health & Safety Information

Signal Word Danger
Hazard Statements H302-H313-H350-H410
Hazard Codes T, N
Precautionary Statements P301+P310-P302+P352+P363-P304+340-P305+351+338
Risk Codes R22-43-45-50/53
RTECS Number N/A
Transport Information UN 3288 6.1/PG III
GHS Pictograms

About Pentazinc Chromate Octahydroxide

American Elements manufactures Pentazinc Chromate Octahydroxide in both research and bulk quantities. American Elements produces materials to many standard grades when applicable including Mil Spec (military grade), ACS, Reagent and Technical Grades; Food, Agricultural and Pharmaceutical Grades, Optical, Semiconductor, and Electronics Grades, and follows applicable USP, EP/BP, and ASTM testing standards. Most materials can be produced in high and ultra high purity forms (99%, 99.9%, 99.99%, 99.999%, and higher). Standard and custom packaging is available. Additional technical, research and safety (SDS) information is available. Please request a quote above to receive pricing information based on your specifications.

Pentazinc Chromate Octahydroxide Synonyms

Zinc Chromate(VI) Hydroxide; Zinc Octahydroxychromate; Zinc Tetrahydroxychromate; Zinc Tetraoxychromate; Zinc Tetroxy chromate; Basic Zinc Chromate; Zinc Yellow 309; 309 Zinc Chrome Yellow; ZTO; C.I. 77956; 4Zn(OH)2ZnCrO4

Chemical Identifiers

Linear Formula Zn5(CrO4)(OH)8
MDL Number N/A
EC No. 256-418-0
Pubchem CID 44144623
IUPAC Name pentazinc; dioxido(dioxo)chromium; octahydroxide
SMILES [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[O-][Cr](=O)(=O)[O-].[Zn+2].[Zn+2].[Zn+2].[Zn+2].[Zn+2]
InchI Identifier InChI=1S/Cr.8H2O.4O.5Zn/h;8*1H2;;;;;;;;;/q;;;;;;;;;;;2*-1;5*+2/p-8

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Chromium products. Chromium (atomic symbol: Cr, atomic number: 24) is a Block D, Group 6, Period 4 element with an atomic weight of 51.9961. Chromium Bohr ModelThe number of electrons in each of Chromium's shells is 2, 8, 13, 1 and its electron configuration is [Ar] 3d5 4s1. Louis Nicolas Vauquelin first discovered chromium in 1797 and first isolated it the following year. The chromium atom has a radius of 128 pm and a Van der Waals radius of 189 pm. In its elemental form, chromium has a lustrous steel-gray appearance. Elemental ChromiumChromium is the hardest metallic element in the periodic table and the only element that exhibits antiferromagnetic ordering at room temperature, above which it transforms into a paramagnetic solid. The most common source of chromium is chromite ore (FeCr2O4). Due to its various colorful compounds, Chromium was named after the Greek word 'chroma.' meaning color.


See more Zinc products. Zinc (atomic symbol: Zn, atomic number: 30) is a Block D, Group 12, Period 4 element with an atomic weight of 65.38. The number of electrons in each of zinc's shells is 2, 8, 18, 2, and its electron configuration is [Ar] 3d10 4s2. Zinc Bohr ModelThe zinc atom has a radius of 134 pm and a Van der Waals radius of 210 pm. Zinc was discovered by Indian metallurgists prior to 1000 BC and first recognized as a unique element by Rasaratna Samuccaya in 800. Zinc was first isolated by Andreas Marggraf in 1746. In its elemental form, zinc has a silver-gray appearance. It is brittle at ordinary temperatures but malleable at 100 °C to 150 °C.Elemental Zinc It is a fair conductor of electricity, and burns in air at high red producing white clouds of the oxide. Zinc is mined from sulfidic ore deposits. It is the 24th most abundant element in the earth's crust and the fourth most common metal in use (after iron, aluminum, and copper). The name zinc originates from the German word "zin," meaning tin.


May 26, 2024
Los Angeles, CA
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