10241-05-1 Usage
Description
Molybdenum(V) Chloride, also known as Molybdenum Pentachloride (MoCl5), is a chemical compound with the formula MoCl5. It exists as greenish-black monoclinic crystals or dark red as a liquid or vapor. Molybdenum(V) Chloride is paramagnetic, hygroscopic, and soluble in dry ether, dry alcohol, and many other organic solvents. It reacts with water and air, making it a versatile and reactive compound.
Uses
Used in Chemical Industry:
Molybdenum(V) Chloride is used as a chlorination catalyst for various chemical reactions, facilitating the process and improving efficiency.
Used in Metallurgical Industry:
Molybdenum(V) Chloride is used in the production of vapor-deposited molybdenum coatings, which are essential for various applications in the metallurgical industry.
Used in Plastics and Resin Industry:
Molybdenum(V) Chloride serves as a component of fire-retardant resins, enhancing the safety and durability of plastic materials.
Used in Soldering and Brazing:
Molybdenum(V) Chloride is used as a brazing and soldering flux, improving the quality and reliability of soldered and brazed joints.
Used in Organometallic Compounds:
Molybdenum(V) Chloride acts as an intermediate for the synthesis of organometallic compounds, such as molybdenum hexacarbonyl, which have various applications in the chemical industry.
Used in Polymerization Reactions:
Molybdenum(V) Chloride is used as a catalyst for several polymerization reactions involving olefins, vinyl monomers, trioxane, ethylene, vinylcyclohexane, cyclopentene, and butadiene, contributing to the production of various polymers with diverse properties and applications.
Preparation
Molybdenum pentachloride may be prepared by heating molybdenite in chlorine. Sulfur chloride formed in the reaction is removed by distillation:
2MoS2 + 7Cl2 → 2MoCl5 + 2S2Cl2
Also, the compound may be prepared by the action of chlorine on molybdenum metal at elevated temperatures (500°C):
2Mo + 5Cl2 → 2MoCl5
The pentachloride may be obtained from the tetrachloride, MoCl4. The latter, when heated in a sealed tube sublimes, and upon cooling, disproportionates to MoCl5 and the trichloride, MoCl3:
2MoCl4 → MoCl5 + MoCl3
Air & Water Reactions
MOLYBDENUM(V) CHLORIDE may react with water to produce corrosive hydrochloric acid and toxic fumes.
Reactivity Profile
MOLYBDENUM(V) CHLORIDE is a corrosive, hygroscopic solid, on contact with water or steam MOLYBDENUM(V) CHLORIDE decomposes to form hydrochloric acid. When heated to decomposition MOLYBDENUM(V) CHLORIDE emits toxic fumes of molybdenum chlorides and metallic molybdenum [Lewis, 3rd ed., 1993, p. 892]. Explodes on contact with finely divided sodium [Berry D. H., Chem. Eng. News, 1989, 67(47), p. 2]. Reaction with finely divided sodium sulfide is violent, may lead to autoignition [Kaner, R. B., Nature, 1991, 349, p. 510].
Hazard
Irritant.
Health Hazard
TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Contact with molten substance may cause severe burns to skin and eyes. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire Hazard
Combustible material: may burn but does not ignite readily. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.
Safety Profile
A poison. A corrosive
irritant to skin, eyes, and mucous
membranes. Reacts with moisture to form
hydrochloric acid. When heated to
decomposition it emits toxic fumes of Mo
and Cl-.
Check Digit Verification of cas no
The CAS Registry Mumber 10241-05-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,2,4 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 10241-05:
(7*1)+(6*0)+(5*2)+(4*4)+(3*1)+(2*0)+(1*5)=41
41 % 10 = 1
So 10241-05-1 is a valid CAS Registry Number.
InChI:InChI=1/5ClH.Mo/h5*1H;/q;;;;;+5/p-5/rCl5Mo/c1-6(2,3,4)5
10241-05-1Relevant articles and documents
Smith, E. F.,Burr, H. C.
, p. 578 - 578 (1894)
Westland, Alan D.,Uzelac, Vladimir
, p. L37 - L39 (1977)
Gutmann, V.,Mairinger, F.
, (1958)
Improved preparations of molybdenum coordination compounds from tetrachlorobis(diethyl ether)molybdenum(IV)
Stoffelbach, Fran?ois,Saurenz, Dirk,Poli, Rinaldo
, p. 2699 - 2703 (2007/10/03)
The reduction of MoCl5 with metallic tin in diethyl ether provides a rapid and convenient entry to [MoCl4(OEt2)2] This compound can be transformed easily and in high yields into a variety of other useful synthon
The Crystal Structure of Nonachlorodimolybdenum(V) Heptachlorodioxo-dimolybdate(V)
Edwards, Anthony J.,Slim, David R.
, p. 485 - 488 (2007/10/02)
The compound Mo2Cl8O was formed as a minor product in the reaction of molybdic acid with thionyl chloride.Its structure has been determined by the heavy-atom method from 1265 reflections, measured with a diffractometer, and refined by full-matrix least-squares methods to R 0.066.Crystals are monoclinic, space group P2/c, with a=10.01(1), b=6.27(1), c=17.89(2) Angstroem, β=101.8(3) grad.The structure consists of singly chlorine-bridged, binuclear cations + and triply chlorine-bridged binuclear anions - which are linked into chains by weak interactions through the oxygen atoms.