It is produced by many species of plants, particularly wintergreens. 20 C. Index of refraction: 1.3727 at 25 C. References. This means that light travels 1.33333 times slower through water than through a vacuum (or air). Henry's Law constant = 4.23X10-5 atm-cu m/mol at 25 C. Propan-1-ol (also propanol, n-propyl alcohol) is a primary alcohol with the formula CH 3 CH 2 CH 2 OH and sometimes represented as PrOH or n-PrOH.It is a colorless liquid and an isomer of 2-propanol.It is formed naturally in small amounts during many fermentation processes and used as a solvent in the pharmaceutical industry, mainly for resins and cellulose esters, and, The refractive index of a polymer is based on several factors which include polarizability, chain flexibility, molecular geometry and the polymer backbone Formic acid is a colorless liquid having a pungent, penetrating odor at room temperature, comparable to the related acetic acid.Formic acid is about ten times stronger than acetic acid.. 8, 601-605 (1997) Data [Expressions for n] [CSV - comma separated] [TXT - tab separated] [Full database record] Optical transmission calculator Methanol (also called methyl alcohol and wood spirit, amongst other names) is an organic chemical and the simplest aliphatic alcohol, with the formula C H 3 O H (a methyl group linked to a hydroxyl group, often abbreviated as MeOH).It is a light, volatile, colourless, flammable liquid with a distinctive alcoholic odour similar to that of ethanol (potable alcohol). A high-refractive-index polymer (HRIP) is a polymer that has a refractive index greater than 1.50.. Such materials are required for anti-reflective coating and photonic devices such as light emitting diodes (LEDs) and image sensors. New Window. CRC Handbook of Chemistry and Physics. About Optics & Photonics Topics Optica Publishing Group developed the Optics and Photonics Topics to help organize its diverse content more accurately by topic area. 2-Ethylhexanol (abbreviated 2-EH) is an organic compound with formula C 8 H 18 O. J. Rheims, J Kser and T Wriedt. Also note the density of ethanol and methanol in the same solutions. n-Hexane 100 microg/mL in Methanol. Where data points are unavailable for 25 C or 1 atmosphere, values are given at a nearby temperature/pressure. Help. Methanol | CH3OH or CH4O | CID 887 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Colloidal gold is a sol or colloidal suspension of nanoparticles of gold in a fluid, usually water. Here "standard conditions" refers to temperatures of 25 C and pressures of 1 atmosphere. A lens is a transmissive optical device which focuses or disperses a light beam by means of refraction.A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.Lenses are made from materials such as glass or plastic, and are ground and polished or molded to a Measurements are read at the point where the prism and solution meet. (ed.) Refractive-index measurements in the near-IR using an Abbe refractometer, Meas. The colloid is usually either wine-red coloured (for spherical particles less than 100 nm) or blue/purple (for larger spherical particles or nanorods). Sci. Haynes, W.M. It is miscible with water and most polar organic solvents, and is somewhat soluble in hydrocarbons.In hydrocarbons and in the vapor phase, it consists of hydrogen-bonded dimers Here is a practical example of the absolute refractive index of water at 20 C, through which we know light travels at 2.25 x 10 8 m/s. It is produced on a large scale (>2,000,000,000 kg/y) for use in numerous applications such as solvents, flavors, and fragrances and especially as a precursor 16.3g (0.1 mole) phenyl-2-nitropropene was dissolved in 200ml methanol in a 250ml Erlenmeyer flask situated on a magnetic stirrer, and chilled to 0C with an ice/salt bath. Refractive index: Methanol Acetone Ethanol Acetic acid Benzene: 25C 25C 25C 25C 25C : 1.326 1.357 1.359 1.370 1.498 : Paraffin oil Palm oil Olive oil: 20C 20C 20C : 1.412 1. Vinegar is at least 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water and other trace elements. Hexane, UV HPLC spectroscopic, 97%. Methyl salicylate (oil of wintergreen or wintergreen oil) is an organic compound with the formula C 8 H 8 O 3.It is the methyl ester of salicylic acid.It is a colorless, viscous liquid with a sweet, fruity odor reminiscent of root beer, but often associatively called "minty", as it is an ingredient in mint candies. New Window. It is a branched, eight-carbon chiral alcohol.It is a colorless liquid that is poorly soluble in water but soluble in most organic solvents. Bamford HA et al; Environ Toxicol Chem 18: 1905-12 (1999) 3.2.17 Refractive Index. 3.2.22 Refractive Index. Technol. Max absorption : 187.5 nm (log e = 4.48); 211.5 nm Technically pure grades of phenanthrene are obtained by sulfuric acid refining and recrystallization from methanol. Octane is a hydrocarbon and an alkane with the chemical formula C 8 H 18, and the condensed structural formula CH 3 (CH 2) 6 CH 3.Octane has many structural isomers that differ by the amount and location of branching in the carbon chain.One of these isomers, 2,2,4-trimethylpentane (commonly called iso-octane) is used as one of the standard values in the Index of refraction: 1.3292 at 20 C/D. AKOS000269046. Then, with good stirring, 7.6g (0.2 mole) of NaBH 4 was added a little at the time, and the temperature was not allowed to to rise above 15C. Acetic acid / s i t k /, systematically named ethanoic acid / n o k /, is an acidic, colourless liquid and organic compound with the chemical formula CH 3 COOH (also written as CH 3 CO 2 H, C 2 H 4 O 2, or HC 2 H 3 O 2). Help. The prism in the refractometer has a greater refractive index than the solution.
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