If I go via the imidazole route, I might use more CS2 to make a larger batch of the imidazole intermediate, probably making ~300 mg, but then I’d only use CS2 once. the physical properties of a molecule such as boiling point, surface tension, etc. the reactivity of a molecule and how it might interact with other molecules. (Carbon Disulfide) We draw Lewis Structures to predict: -the shape of a molecule. I was wondering whether anyone has had any experience using CS2, and whether they have any further suggestion? We currently only have nitrile gloves in lab, should I use different gloves? Any help would be appreciated as no one in my lab has used CS2 before, and I'm a bit nervous about using it since its the most hazardous thing I've used so far.Įdit: I forgot to add scale, but I won’t be making more than 100mg of those final products, so I won’t be using that much CS2. Lewis Structure for CS 2 (Carbon Disulfide) Lewis Structure for CS. However, it's one thing to be given advice, and another to actually have experience using the reagent. I have spoken to my safety advisor at my institution, and they've provided some advice - gloves, bleach bath nearby, quench every CS2-contaminated object in bleach overnight, and then dispose. Balance the chemical equation and determine the mass of C2H5OH produced from 750 g of C6H12O6. I am mostly concerned because it is quite volatile with a boiling point of 46.3 degrees Celsius. carbon disulfide (CS2), also called Carbon Bisulfide, a colourless, toxic, highly volatile and flammable liquid chemical compound, large amounts of which are used in the manufacture of viscose rayon, cellophane, and carbon tetrachloride smaller quantities are employed in solvent extraction processes or converted into other chemical products. Methane and sulfur react to produce carbon disulfide (CS2), a liquid often used in the production of cellophane. I am aware that CS2 is a pretty hazardous reagent, and a neurotoxin. I am aware that I’d make a substituted thiourea if I add an amine (and not my desired dithioimidocarbonate), but I suppose I can try and add excess MeI and reflux as the attached paper does. Route 3, using the imidazole compound, has been used for the synthesis of xanthates, substituted ureas, and other such dithio- reagents.ĭoes it seem viable to use a Grignard reagent for the synthesis of a dithioester using this imidazole compound? It has not been explored in literature (from a Reaxys search). Carbon disulfide (CS 2) is a typical organic sulfur compound with an irritating odor and high toxicity.It is mainly emitted from natural and anthropogenic sources, automobiles, chemical industry, and sulfur recovery processes make the most contributions for anthropogenic source 1, 2. Route 1 is something I have seen in a very old paper, route 2 is following: section 4.7, compounds 22 onwards00094-7). I've attached a scheme of my possible synthesis. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass.I am planning to use Carbon Disulfide (CS2) for the synthesis of dithioesters or dithioimidocarbonates. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages. The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. These relative weights computed from the chemical equation are sometimes called equation weights. Its applications include use as an organic chemistry building block. Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance.įormula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. Carbon disulfide is a toxic, flammable, volatile, liquid organosulfur compound. This site explains how to find molar mass. The reason is that the molar mass of the substance affects the conversion. To complete this calculation, you have to know what substance you are trying to convert. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.Ī common request on this site is to convert grams to moles. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.įinding molar mass starts with units of grams per mole (g/mol).
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