Chloroform soluble extractives
WebMelamine-formaldehyde resins may be safely used as the food-contact surface of molded articles intended for use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food in … WebThe GC-MS analysis of the chloroform soluble fraction of the extractives obtained from C. sativa showed the presence of methyl hexadecanoate and octadecanoic acid ( Table 5).
Chloroform soluble extractives
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WebJan 17, 2024 · (a) Oxidized polyethylene is the basic resin produced by the mild air oxidation of polyethylene conforming to the density, maximum n- hexane extractable fraction, and maximum xylene soluble... WebThe oxidation occurred mainly on the polar fraction of the extractives, and then, the solubility in chloroform increased by 12.3%. When the extraction was performed in the autoclave, MoO3 was able to induce an oxidative depolymerization of wood with the consequent increase in the extractives amount.
WebJan 17, 2024 · (2) The net acidified chloroform-soluble extractives from paper and paperboard complying with § 176.170 of this chapter may be corrected for wax, petrolatum, and mineral oil as provided in §... Web( ii) Acidified chloroform-soluble extractives residue. Add 3 milliliters of 37 percent ACS reagent grade hydrochloric acid and 3 milliliters of distilled water to the evaporating dish containing the dried and weighed residue, e, obtained in paragraph (e) (6) (i) of this section.
Web( 2) The net acidified chloroform-soluble extractives from paper and paperboard complying with § 176.170 of this chapter may be corrected for wax, petrolatum, and mineral oil as provided in § 176.170 (d) (5) (iii) ( b) of this chapter. Web(b) The finished food-contact article, when extracted with the solvent or solvents characterizing the type of food and under the conditions of time and temperature characterizing the conditions of its intended use as determined from tables 1 and 2 of § 176.170(c) of this chapter, yields net chloroform-soluble extractives (corrected for zinc ...
WebNet chloroform soluble extractives from n-heptane PASS Remark:Test results in this report are applicable for the item tested and reflects the tested sample as received. …
Webchloroform-soluble extractives shall not exceed 0.05 milligram/square inch3 (0.078 mg/square centimeter) of food- contact surface (water, acetic acid, or ethanol/water extractions) when ex-tracted by the equilibrium method cited in paragraph (e)(2)(ii) of this sec-tion. If when exposed to n-heptane, a particular film splits along die lines, knock cermoniesWeb( ii) Total extractives not to exceed 0.20 percent by weight of homopolymer when extracted for 6 hours with distilled water at reflux temperature and 0.15 percent by weight of homopolymer when extracted for 6 hours with n- heptane at reflux temperature. ( e) Conditions of use. red energy customer loginWebChloroform extract does not necessarily represent toxic molecules but potentially harmful stuff. Secondly chloroform extraction is analytical chemist friendly- after extraction the … knock cemetery co mayoWebChloroform fraction of alcohol extractives 1. Plasticized polymers, including unvulcanized or vulcanized or otherwise cured natural and synthetic rubber … knock certificationWebJan 17, 2024 · Chloroform-soluble extractives shall not exceed 0.2 milligram/inch 2 of food-contact surface when exposed to the following solvents at temperatures and times … knock cemetery belfastWebpresent study includes soluble extractive values and physicochemical analysis of bark of Sesbania .sesban . EXPERIMENTAL SECTION Method recommended in … red energy credit evenpayWebOct 12, 2024 · Chloroform soluble extractive in paper and paperboard; Sensory test; Total extractives from water and n-hexane for rubber articles; Peroxide residue; Specific … red energy customer number