Search results
Results from the WOW.Com Content Network
Dry ice: Tetrachloroethylene-22 Dry ice: Carbon Tetrachloride-23 Dry ice: 1,3-Dichlorobenzene-25 Dry ice: o-Xylene-29 Liquid N 2: Bromobenzene-30 Dry ice: m-Toluidine-32 Dry ice: 3-Heptanone-38 Ice: Calcium chloride hexahydrate -40 1 to 0.8 ratio of salt to ice. Dry ice: Acetonitrile-41 Dry ice: Pyridine-42 Dry ice: Cyclohexanone-46 Dry ice: m ...
The "drying", hardening, or, more properly, curing of oils is the result of autoxidation, the addition of oxygen to an organic compound, and the subsequent crosslinking. This process begins with an oxygen molecule (O 2 ) in the air inserted into carbon-hydrogen (C-H) bonds adjacent to one of the double bonds within the unsaturated fatty acid.
Organochlorine chemistry is concerned with the properties of organochlorine compounds, or organochlorides, organic compounds that contain one or more carbon–chlorine bonds. [1] The chloroalkane class (alkanes with one or more hydrogens substituted by chlorine) includes common examples. The wide structural variety and divergent chemical ...
Typical sources of drying oils for alkyd coatings are tung oil, linseed oil, sunflower oil, safflower oil, walnut oil, soybean oil, fish oil, corn oil, dehydrated castor oil (in which dehydration transforms certain of its fatty acids’ single bonds into double bonds, some of them conjugated, creating a semi-drying oil) and tall oil (resinous ...
Vacuum microwave drying is used for the US Army's experimental Close Combat Assault Ration. [3] Freeze drying or lyophilization is a drying method where the solvent is frozen prior to drying and is then sublimed, i.e., passed to the gas phase directly from the solid phase, below the melting point of the solvent. It is increasingly applied to ...
Recrystallization: In analytical and synthetic chemistry work, purchased reagents of doubtful purity may be recrystallised, e.g. dissolved in a very pure solvent, and then crystallized, and the crystals recovered, in order to improve and/or verify their purity.
Morpholine is an organic chemical compound having the chemical formula O(C H 2 CH 2) 2 NH. This heterocycle features both amine and ether functional groups. Because of the amine, morpholine is a base; its conjugate acid is called morpholinium. For example, treating morpholine with hydrochloric acid generates the salt morpholinium chloride.
Iodine value helps to classify oils according to the degree of unsaturation into drying oils, having IV > 150 (i.e. linseed, tung), semi-drying oils IV : 125 – 150 ( soybean, sunflower) and non-drying oils with IV < 125 (canola, olive, coconut). The IV ranges of several common oils and fats is provided by the table below.