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Starch Chloroacetates

Sodium starch glycolate is the sodium salt of a poly-ot-glucopyranose in which some of the hydroxyl groups are in the form of the carboxymethyl ether (Fig. 6). Starch is carboxymethylated by reacting it with sodium chloroacetate in an alkaline medium followed by neutralization with acid. Cross-linking is achieved by physical or chemical methods. The sodium starch... [Pg.3480]

The chemistry of starch ethers has progressed with the use of a greater variety of alkylating agents, for instance, ethylene oxide,745 chloroacetic acid, epichloro-hydrin, vinyl monomers, and other alkylating agents.746... [Pg.214]

The formation of a trinicotinate was reported.2409 The best method of preparing this starch derivative involved reacting nicotinoyl chloride hydrochloride and starch in boiling pyridine.2410 Starch isonicotinates and 4-(sulfinylamino)benzoates were subsequently prepared. Starch isonicotinate was further cationized by treating it in nitromethane solution with methyl 2-(chloroacetyl)lactate or benzoylhydrazide A-chloroacetate and l-[2-(chloroacetoxy)propanoyl]-3-methylpyrazole.2411... [Pg.272]

Cetyl alcohol Cetyl esters Chloral hydrate Chloroacetamide Chloroacetic acid Chlorobenzene Chloroform Chromium nitrate Chromium potassium sulfate Cl 77000 Cobalt acetate (ous) Coconut acid Coconut (Cocos nucifera) oil Cod liver oil Copal resin Corn (Zea mays) oil Corn (Zea mays) starch Cottonseed (Gossypium) oil Coumarone/indene resin C10-12 pareth-3 C10-12 pareth-6 C10-12 pareth-8 C12-14 pareth-1 C12-14 pareth-3 C12-14 pareth-4 C12-14 pareth-7 C12-14 pareth-8 C12-14 pareth-11 p-Cresol/dicyclopentadiene butylated reaction product Cumene hydroperoxide... [Pg.4796]

When starch granules are heated in an excess of water (>90 per cent w/w) or of another solvent able to form hydrogen bonding e.g. liquid ammonia, formamide, formic acid, chloroacetic acids and dimethyl sulphox-ide) starch undergoes an irreversible order-disorder transition known as gelatinization or destructuration. This... [Pg.325]

Sodium starch glycolate By reacting starch with sodium chloroacetate followed by acidic neutrcJization Disintegrant... [Pg.5]

In its largest scale application, chloroacetic acid is used to prepare the thickening agent carboxymethyl cellulose and carboxymethyl starch. [Pg.82]

See other pages where Starch Chloroacetates is mentioned: [Pg.279]    [Pg.279]    [Pg.279]    [Pg.279]    [Pg.269]    [Pg.44]    [Pg.3553]    [Pg.1463]    [Pg.215]    [Pg.216]    [Pg.216]    [Pg.223]    [Pg.223]    [Pg.259]    [Pg.60]    [Pg.22]    [Pg.257]    [Pg.19]   


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Chloroacetate

Chloroacetates

Chloroacetic

Starch chloroacetate

Starch chloroacetate

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