Molybdenum Disulfide Properties

molybdenum disulfide Molybdenum disulfide Properties How Follws:

molybdenum disulfide

The main component of molybdenite. Black solid powder with a metallic luster.

Chemical formula MoS2, melting point 1185 ℃, density 4.80g/cm3 (14 ℃), a Mohs hardness of 1.0 ~ 1.5. 1370 ℃ begin to decompose, 1600 ℃ decomposition of molybdenum and sulfur. 315 ℃ when heated in air starts to oxidize, the temperature rises, the rate of oxidation reaction.

Molybdenum disulfide is insoluble in water, dilute acid and concentrated sulfuric acid is generally not soluble in acid, alkali, organic solvents, but soluble in aqua regia and boiling in concentrated sulfuric acid. 400 ℃ is slowly oxidized molybdenum trioxide:

2 MoS2 + 7 O2 → 2 + 4 МоО3 SO2

Can be used to check the generated molybdenum trioxide Tyrone. First, the product is treated with sodium hydroxide or potassium hydroxide (principle molybdates, molybdenum trioxide) and titanium reagent solution was added dropwise and the resulting sodium molybdate or may be reacted with potassium molybdate give a golden yellow solution. This method is very sensitive, a small amount of molybdate salt can be detected. And if not to generate molybdenum trioxide, golden yellow solution is formed from molybdenum disulphide and sodium hydroxide or potassium hydroxide without departing reaction.

molybdenum disulfide molybdenum disulfide molybdenum disulfide

Heating may be molybdenum disulfide and chlorine reaction molybdenum pentachloride:

2 MoS2 + 7 Cl2 → 2 + 2 MoCl5 S2Cl2

Molybdenum disulfide and alkyl lithium in the control reaction, the formation of intercalation compounds (intercalation compounds) LixMoS2. If the reaction product of butyllithium and then LiMoS2. Molybdenum disulfide with a high content of active sulfur, lead to corrosion of copper in many lubricant additives on the books, papers, discussed. Moreover, copper and its alloys are produced in need of lubrication, and not not use molybdenum disulfide lubricant products, we also need to add an anti-copper etchant.

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