13595-85-2

Basic information

• Product Name: BISMUTH MOLYBDENUM OXIDE
• Synonyms: BISMUTH(III) MOLYBDATE, 99.9%;BISMUTH MOLYBDENUM OXIDE, 99.5% (METALS BASIS);dibismuth;bismuthmolybdenumoxide(bi2mo3o12);BISMUTH MOLYBDENUM OXIDE;BISMUTH MOLYBDATE;BISMUTH(III) MOLYBDATE;dibismuth trimolybdenum dodecaoxide
• CAS NO: 13595-85-2
• Molecular Formula: Bi₂Mo₃O₁₂
• Molecular Weight: 897.77
• EINECS: 237-032-1
• Product Categories: Bismuth;Catalysis and Inorganic Chemistry;Chemical Synthesis
• Mol File: 13595-85-2.mol
• Article Data: 18

Chemical Properties

• Melting Point: >300 °C(lit.)
• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: BISMUTH MOLYBDENUM OXIDE(CAS DataBase Reference)
• NIST Chemistry Reference: BISMUTH MOLYBDENUM OXIDE(13595-85-2)
• EPA Substance Registry System: BISMUTH MOLYBDENUM OXIDE(13595-85-2)

Safety Data

• WGK Germany: 3
• Hazardous Substances Data: 13595-85-2(Hazardous Substances Data)

Usage

General Description

Bismuth Molybdenum Oxide, also known as Bismuth Molybdate, is a compound made up of bismuth and molybdenum. It appears as a yellow powder or crystalline material and is known for its excellent catalytic properties, making it highly useful in the petrochemical industry. It is a key catalyst used in the manufacturing of acrylonitrile - a precursor for synthetic materials like acrylic and nylon. However, safe handling is required as its dust can potentially cause eye and skin irritation, or if inhaled, cause damage to the respiratory tract. The chemical is also known to have low levels of toxicity. Despite the potential hazards, it is environmentally friendly, stable and active under broad operation conditions, making it widely used within several industrial processes.

InChI:InChI=1/2Bi.2Mo.9O/q2*+3;2*+6;9*-2

Upstream product

• 1304-76-3 bismuth(III) oxide 
• 16229-40-6 β-bismuth molybdate 
• 46140-16-3 bismuth(III) nitrate 

Downstream Products

• 7440-69-9 bismuth 
• 13565-96-3 bismuth molybdate 

Relevant articles and documents

The morphological evolution of the Bi2Mo3O 12(010) surface in air-H2O atmospheres

Atomic force microscopy (AFM) has been used to examine the morphological evolution of the Bi2Mo3O12(010) surface at 400-600°C in dry air and air-2.3% H2O. The (010) cleavage surface is characterized by atomically flat terraces separated by straight steps that are integer multiples of b/2 (5.75 A) in height. During treatments at or above 500°C, the surface is etched due to the volatilization of Mo. In dry air, etching affects both steps and flat terraces and results in step recession, the development of half-unit-cell (b/2) step loops (pits and islands), and the accumulation of Bi-rich surface deposits. In air-2.3% H2O, steps are etched with preference to terraces, and this leads to step recession as well as the formation of Bi-rich deposits. Mo volatilization proceeds at an enhanced rate in air-2.3% H2O and culminates in the nucleation and growth of Bi2MoO6 and Bi2Mo2O9 precipitates at 500 and 600°C, respectively.

Determination of standard molar enthalpies of formation of Bi2Mo3O12 (s), Bi2MoO6 (s), Bi6Mo2O15 (s) and Bi6MoO12 (s) by solution calorimetry

The standard molar enthalpies of formation of Bi2Mo3O12 (s), orthorhombic phase of Bi2MoO6 (s), monoclinic phase of Bi2MoO6 (s), Bi6Mo2O15 (s) an

Partial phase diagram of MoO3 rich section of the ternary Bi-Mo-O system

Partial phase diagrams of MoO3 rich section of Bi-Mo-O system have been established at 773, 873 and 1023 K based on phase equilibration studies. Electrical conductivity measurements along with equilibration experiments were used to determine th

PROCESS FOR THE PREPARATION OF HYDROPEROXY ALCOHOLS USING A HETEROGENOUS CATALYST

The present invention relates to a process for preparing hydroperoxy alcohols using hydrogen peroxide as an oxidant in a solvent selected from water-soluble carboxylic acids, in the presence of a metallic mixed oxide heterogeneous catalyst. It also pertains to the use of this catalyst in the synthesis of hydroperoxy alcohols.

Selective oxidation and oxidative dehydrogenation of hydrocarbons on bismuth vanadium molybdenum oxide

A systematic investigation of the oxidative dehydrogenation of propane to propene and 1- and 2-butene to 1,3-butadiene, and the selective oxidation of isobutene to methacrolein was carried out over Bi1-x/3V1-xMoxO4 (x = 0-1) with the aim of defining the effects of catalyst and reactant composition on the reaction kinetics. This work has revealed that the reaction kinetics can differ significantly depending on the state of catalyst oxidation, which in turn depends on the catalyst composition and the reaction conditions. Under conditions where the catalyst is fully oxidized, the kinetics for the oxidation of propene to acrolein and isobutene to methacrolein, and the oxidative dehydrogenation of propane to propene, 1-butene and trans-2-butene to butadiene are very similar - first order in the partial pressure of the alkane or alkene and zero order in the partial pressure of oxygen. These observations, together with XANES and UV-Vis data, suggest that all these reactions proceed via a Mars van Krevelen mechanism involving oxygen atoms in the catalysts and that the rate-limiting step involves cleavage of the weakest C-H bond in the reactant. Consistent with these findings, the apparent activation energy and pre-exponential factor for both oxidative dehydrogenation and selective oxidation correlate with the dissociation energy of the weakest C-H bond in the reactant. As the reaction temperature is lowered, catalyst reoxidation can become rate-limiting, the transition to this regime depending on ease of catalyst reduction and effectiveness of the reacting hydrocarbons as a reducing agent. A third regime is observed for isobutene oxidation at lower temperatures, in which the catalyst is more severely reduced and oxidation now proceeds via reaction of molecular oxygen, rather than catalyst lattice oxygen, with the reactant.