iodine value


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iodine value

[′ī·ə‚dīn ‚val·yü]
(analytical chemistry)
References in periodicals archive ?
The iodine value, saponification value, unsaponifiable matter, peroxide value and acid value were determined according to standard methods of AOAC (1990).
Refractive index, density, specific gravity, surface tension, acid value, free fatty acid value, saponification value, iodine value, colour and peroxide value were carried out.
For the chemical characterization of different varieties of cottonseed oil, official methods were used to check oil content, iodine value, saponification value, peroxide value, free fatty acids and oxidative stability as reported in AOCS method [8].
Iodine value (g/g) indicates the number of double bonds present and, therefore, the degree of unsaturation.
Iodine value was determined by the titration of liberated iodine with sodium thiosulphate using starch as indicator.
According to the Chinese standards that define water iodine value less than 10g/L as iodine-deficient district, and according to an Indian study where iodine content of drinking water in goitrous areas ranged from 3-16g/L as compared to 5-64g/L in non-goitrous areas, iodine content in Saudi water is still found low.
Cardanol was subjected to extensive analysis for the determination of iodine value, viscosity, and specific gravity as per the procedures mentioned in IS-Standard 840-1964 (refer to Table 1).
Key statement: The present invention provides an oil extended rubber for a tire, which is obtained by a process for preparing an oil extended rubber for a tire, comprising: (a) a step of preparing an oil-in-water type emulsion by emulsifying a vegetable oil having an iodine value of not less than 135 with a surfactant; (b) a step of mixing said emulsion of vegetable oil and a modified natural rubber latex, and then maturing the mixture; and (c) a step of coagulating the mixture obtained in the step (b) to obtain a lump of a rubber.
The peroxide value (PV) represents the quantity of peroxide in the sample; acid value (AV) represents the present free acids; and iodine value (IV) is a measure of total number of double bonds in the sample.
anates, sucrose fatty acids, polyethylene waxes, fatty alcohols, sucrose fatty esters, stearyl alcohol, sucrose hardened soy esters having an iodine value of less than 107, natural alcohol still bottoms, wax esters, aldol condensation products with melting points greater than 60 C.
Like all other vegetable oils, Camelina-seed oil can be used in the production of biodiesel fuel; however, because of the composition of fatty acids (high content of polyunsaturated acids) (Peiretti, Meineri 2007), it is probable that biodiesel fuel will fail to comply with the requirement of Standard EN 14214:2003 in respect of the iodine value.