Store in cool, dry place in tightly closed containers.Įnsure good ventilation at the workplace. See Section 8 for information on personal protection equipment. See Section 7 for information on safe handling Prevention of secondary hazards: No special measures required. Methods and materials for containment and cleanup:ĭispose of contaminated material as waste according to section 13. Keep unprotected persons away.Įnvironmental precautions: Do not allow material to be released to the environment without official permits. Personal precautions, protective equipment and emergency procedures If this product is involved in a fire, the following can be released: Special hazards arising from the substance or mixture Use fire-fighting measures that suit the surrounding fire. Suitable extinguishing agents Product is not flammable. Indication of any immediate medical attention and special treatment needed: Most important symptoms and effects, both acute and delayed: Rinse opened eye for several minutes under running water. Immediately wash with soap and water rinse thoroughly. If not breathing, provide artificial respiration. (Hazardous Materials Identification System) P501 Dispose of contents/container in accordance with local/regional/national/international regulations.ĭ2B - Toxic material causing other toxic effects P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. Remove contact lenses, if present and easy to do. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. P280 Wear protective gloves/protective clothing/eye protection/face protection. P261 Avoid breathing dust/fume/gas/mist/vapors/spray. Thin Film Deposition & Evaporation Materials.Additive Manufacturing & 3D Printing Materials.These relative weights computed from the chemical equation are sometimes called equation weights. 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. 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. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass.įinding molar mass starts with units of grams per mole (g/mol). 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. 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. 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.Ī common request on this site is to convert grams to moles.