Barium Dichromate Dihydrate,CAS : 10031-16-0
رمز المنتج : Chem-W009-CU-CU
E FORU specializes in producing high purity Barium Dichromate Dihydrate,CAS : 10031-16-0 with the smallest possible average grain sizes,Purities may include 99%, 99.9%, 99.99%, 99.999% and 99.9999%, which are sometimes referred to as 2N, 3N, 4N, 5N and 6N. 99.99995% (6N5), and in some cases up to 99.99999% (7N) and 99.999999% (8N),E FORU produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Our standard powder particle sizes average in the range of - 325 mesh, - 200 mesh,- 100 mesh, 10-50 microns and submicron ( 1 micron). We can also provide in the nanoscale range.Powders are also useful in any application where high surface areas are desired such as water treatment and in fuel cell and solar applications. Nanoparticles also produce very high surface areas.a tungstate is a compound that contains an oxyanion of tungsten or is a mixed oxide containing tungsten. The simplest tungstate ion is WO2-12, "orthotungstate". Many other tungstates belong to a large group of polyatomic ions that are termed polyoxometalates, ("POMs"), and specifically termed isopolyoxometalates as they contain, along with oxygen and maybe hydrogen, only one other element. Almost all useful tungsten ores are tungstates.[.Quality inspection department staff which uses atomic spectroscopy, x-ray diffraction analysis, scanning electron microscopy, glow discharge mass spectroscopy (GDMS), and BET surface area analysis, among other technologies, to ensure that the elemental composition and structural properties of each product rigorously adhere to our standards.Additional technical, research and safety (MSDS) information is available,
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CAS #: 10031-16-0
Linear Formula: BaCr2O7•2H2O
MDL Number: MFCD00049847
EC No.: N/ASynonyms
CAS 13477-01-5Orthotungstates feature tetrahedral W(VI) centres with short W–O distances of 1.79 Å. Structurally, they resemble sulfates. Six-coordinate, octahedral tungsten dominates in the polyoxotungstates. In these compounds, the W–O distances are elongated.Some examples of tungstate ions:HWO−4 (hydrogentungstate),polymeric W2O2−7 ions of various structures in Na2W2O7, Li2W2O7 and Ag2W2O7
[W7O24]6− (paratungstate A),[W10O32]4− (tungstate Y),[H2W12O42]10− (paratungstate B) ,α-[H2W12O40]6− (metatungstate),β-[H2W12O40]14− (tungstate X)
Compound Formula: BaCr2H4O9
Molecular Weight: 389.35
Appearance: Orange to brown powder or crystals
Melting Point: N/A
Boiling Point: N/A
Density: 3.48 g/cm3
Solubility in H2O: Insoluble
Exact Mass: 389.771789 g/mol
Monoisotopic Mass: 389.771789 g/mol
Crystal Phase / Structure: Monoclinic
Health & Safety Information
Signal Word: Danger
Hazard Statements: H350-H340-H360-H330-H301-H372-H312-H314-H334-H317-H410
Hazard Codes: O, T, N
Precautionary Statements: P301+P310-P303+P361+P353-P305+P351+P338-P320-P405-P501
Risk Codes: R23/25-R50/53
Safety Statements: S(1/2)-S20/21-S28-S45-S60-S61
Transport Information: UN 1479 5.1/PG II
GHS Pictogram: Image,Image,Image,Image
Chemical Identifiers
Linear Formula: BaCr2O7•2H2O
Pubchem CID: 61445
MDL Number: MFCD00049847
EC No.: N/A
IUPAC Name: barium(2+); oxido-(oxido(dioxo)chromio)oxy-dioxochromium; dihydrate
SMILES: O.O.[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-].[Ba+2]
InchI Identifier: InChI=1S/Ba.2Cr.2H2O.7O/h;;;2*1H2;;;;;;;/q+2;;;;;;;;;;2*-1
InchI Key: ZQSMAMHHWPUNEZ-UHFFFAOYSA-NPacking of
Standard Packing:
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. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2316 gallon liquid totes Special package is available on request.