Molybdenum disulfide mos2 nanoparticles properties. Mos 2 has been used in bulk for many years as a solid state lubricant, this is due to its low coefficient of friction in addition to its high chemical and thermal stability. Pdf 2d material molybdenum disulfide analyzed by xps. Hazard identificationassessment of molybdenum disulfide mos2. Acute inhalation of molybdenum concentrate dust or fume may produce irritation of the upper airways. Molybdenum disulfide is used as a powder in this method. Molybdenum disulphide is hazardous to people and to environment. Molybdenum is a block d, period 5 element, and sulfur is a block p, period 3 element. Material safety data sheet lts research laboratories, inc. This black crystalline sulfide of molybdenum occurs as the mineral molybdenite. Hazards identification none expected in industrial use.
Ac215785000 casno 17335 synonyms molybdenum disulfide recommended use laboratory chemicals. Molybdenite ore is processed by flotation to give relatively pure molybdenum disulfide 17335, the main contaminant being carbon. Molybdenumdisulfide 2d transistors go ballistic stanford ee. Molybdenum disulfide mos 2 is a member of the tmds, which have a thicknessdependent bandgap, which is in a suitable range for applications in semiconductor devices. Molybdenum disulfide is the inorganic compound with the formula mos 2. Molybdenum trioxide, in turn, transforms to the nontoxic molybdate species under normal enivironmental conditions. Molybdenum disulfide 17335 also arises by the thermal treatment of virtually all molybdenum compounds with hydrogen sulfide. In this work, aisi 316 austenitic stainless steel was coated. Molybdenum disulfide is ubiquitous in the environment and is the naturallyoccurring base mineral from which molybdenum trioxide is produced. Chemical product and company identification product name. Contact with strong acids will generate flammable and highly toxic hydrogen sulphide gas. These compounds exist in various crystalline forms but only the mo and w compounds form. Molybdenum disulfide properties include molecular weight of 160.
Molybdenum disulfides thinnest structure is only three atoms deep, with a central layer of molybdenum atoms linked to layers of sulfur on either side. News molybdenum disulfide transistors could be the next leap in microelectronics february, 2017 by robin mitchell a team of researchers from stanford have created transistors from molybdenum disulphide using standard industrialtype production techniques. Molybdenum disulfide is an ideal antigalling compound because of its combination of high compressive strength and its adherence ability to fill or level to the sliding surfaces. The importance of mos 2 as a catalyst is not only based on its relatively high activity, which for a given process could not be as large as the other metallic derivatives, but also on its resistance to poisoning with sulfur 80, 101, 102, 103. If inhaled if breathed in, move person into fresh air. Metric comments, suggestions, or questions on this document should be addressed to afpaptpt, 2430 c. Surprising discoveries about 2d molybdenum disulfide. Molybdenum disulfide, crystalline, synthetic, nonfibrous components concentration cas no. Molybdenum disulfide is a few steps ahead because researchers have worked with it more than, say, tungsten selenide, and know how to grow the material over large areas. This article discusses the properties and applications of molybdenum disulfide nanoparticles. Molybdenum disulfide 2d transistors go ballistic march 2017 at the ieee international electron devices meeting, researchers presented work they say shows that molybdenum disulfide not only makes for superlative single transistors, but can be made into complex circuits using realistic manufacturing methods. Safety data sheet molybdenum disulfide acs material llc molecular weight. Search results for molybdenum disulfide at sigmaaldrich.
Use this grease where specified in the service manual to use grease m. Molybdenum disulfide mos 2 is the most famous of the single layer transition metal dichalcogenide tmd family. Aug 14, 2015 working at the molecular foundry, berkeley lab researchers used their campanile nanooptical probe to make some surprising discoveries about molybdenum disulfide, a member of the transition metal dichalcogenides tmdcs semiconductor family whose optoelectronic properties hold great promise for future nanoelectronic and photonic devices. Molybdenum disulfide the ideal solid lubricant and anti. Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. Compared to graphite, another common dry lubricant, molybdenum disulfide has a lower coefficient of static friction, better overall lubricating qualities, and will not burn off due its high temperature. Material safety data sheet molybdenum disulfide msds section 1. Show this safety data sheet to the doctor in attendance.
Molybdenum disulfide is classified as a transition metal dichalcogenide tmd which includes the disulfides, diselenides and ditellurides of ti, zr, hf, v, nb, ta, cr, mo, and w. Molybdenum disulfide is the chemical form in which the metal molybdenum is found in natural ore bodies as the mineral molybdenite. The lamellae tend to align and adhere to contact surfaces, particularly under conditions of sliding and pressure, as shown in fig 2. Request safety data sheet sds and refer to points 4, 5, 6, 8, 10, 14, 15. Strong molybdenum disulfide grease 10oz strong p extremepressure grease lubricates high loads is noncorrosive and waterresistant. Safety data sheet molybdenum disulfide acs material llc. Generally, molybdenum disulfide has very good chemical stability and thermal stability. Molybdenum disulfide 17335 15 the specific identity andor exact percentage of composition has been withheld as a trade secret. Exhibits lowfriction properties that protect against wear and galling in difficult operating conditions. Molybdenum disulfide, in its various forms is of great interest in several catalytic reactions. Uses advised against food, drug, pesticide or biocidal product use. Molybdenum disulfide is one of the slipperiest substances on earth and is commonly used a dry lubricant where oils and greases are not ideal.
There are many methods of applying molybdenum disulfide to a surface, from high tech techniques such as vacuum sputtering, to simply dropping. There are no ingredients present which, within the current knowledge of the supplier and in the concentrations applicable, are classified to health or the environment and hence require reporting in this section. The product does not have labelling obligations, but nevertheless, the safety standards must be respected. Hazards identification potential acute health effects. Uses lubricants in greases, oil dispersions, resin bonded films, dry powders. Mos2 can be designated as chemically inert under normal conditions. Molybdenum disulfide material safety data sheet natural molybdenite molykote molybdenumiv sulfide molybdenum sulfide molybdenite disulfanylidenemolybdenum formula mos 2 structure description leadgray, lustrous powder. It is the principal ore from which molybdenum metal is extracted. The toxicological properties of this material have not been fully investigated. Molybdenum disulfide an overview sciencedirect topics. Details of the supplier of the safety data sheet emergency telephone number.
Molybdenum sulfide 15 17335 2152639 zinc dialkyl dithiophosphate 14 68649423 2720283 contains less than 3 % dmso extract as measured by ip 346. Molybdenum disulfide mos2 is one of the most widely used solid lubricants applied in different ways on the surfaces under friction. Molybdenum does not occur naturally as a free metal on earth. Molybdenum sulfide, molybdenum disulfide, molybdenum iv sulfide. The compound is classified as a transition metal dichalcogenide. Molybdenum sulfide or molybdenum disulfide is a moderately water and acid soluble molybdenum source for uses compatible with sulfates. This fact already initially indicates a high stability of this compound under ambientnatural conditions, including low solubility and low reactivity. Mos2 is relatively unreactive, being unaffected by dilute acids and oxygen. This form was only discovered in 2011 and was originally produced, like graphene, by using adhesive tape to peel off a single layer though more recently by growing sheets on a silicon wafer.
Molybdenum disulfide mos 2 17335 2152639 not classified in clp 99% note remainder is. Molybdenite is the principal ore from which molybdenum metal is extracted. Molybdenum disulfide or moly is an inorganic compound composed of molybdenum and sulfur. This burnishing in of the molybdenum disulfide gives it. Molybdenum sds safety data sheet midwest tungsten service. Mos 2 hazardous ingredients chemical characterization. It is a silvery black solid that occurs as the mineral molybdenite, the principal ore for molybdenum. Molybdenum disulfide transistors could be the next leap in.
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