Dusting powders starch

Dusting Powders are sprinkled onto the intact skin and consist of talc, magnesium stearate, silicon dioxide (silica), or starch. They adhere to the skin, forming a low-friction film that attenuates mechanical irritation. Powders exert a drying (evaporative) effect. 

Starch is widely used in the food industry, and finds considerable applications in medicine. Its absorbent properties make it ideal for dusting powders, and its ability to swell in water makes it a valuable formulation aid, being the basis for tablet disintegrants. Soluble starch is obtained by partial acid hydrolysis, and is completely soluble in hot water. 

In confections, starch is used for gelling centers and to provide attractive coatings. It is also used as a dusting powder and as an impressionable bed where candies are cast. To make jelly bean centers, starch is cooked with water, com syrup and sugar. Flavors may then be added, and the fluid is cast in impressions formed in trays of molding starch. Stacks of trays are placed in heated rooms until the candy is dry enough to be shaken from the mold, coated and packaged. 

Starch is also used in topical preparations for example, it is widely used in dusting powders for its absorbency, and is used as a protective covering in ointment formulations applied to the skin. Starch mucilage has also been applied to the skin as an emollient, has formed the base of some enemas, and has been used in the treatment of iodine poisoning. 

Bio-sorb double-dressed, white maize starch Fluidamid R444P Keoflo ADP Meritena modified starch dusting powder Pure-Dent B851 starch-derivative dusting powder sterilizable corn starch. 

Sterilizable maize starch is a chemically or physically modified corn (maize) starch that does not gelatinize on exposure to moisture or steam sterilization. Sterilizable maize starch is primarily used as a lubricant for examination and surgeons gloves although because of safety concerns unlubricated gloves are now generally recommended. It is also used as a vehicle for medicated dusting powders. 

Sterilizable maize starch is primarily used as a lubricant for surgeons gloves and as a vehicle for topically applied dusting powders. 

Sugar spheres are prepared from crystalline sucrose, which is coated using sugar syrup and a starch dusting powder. 

Rice starch, because of the small size of its granules, is preferred for preparing cosmetic dusting-powders and in the binding of pharmaceutical tablets. Imports into the U. S. are principally from Belgium and Egypt. 

Starch carbonate diesters were formed by reaction of starch with alkylene carbonates under diminished pressure at 100-140 °C 2002 The products were proposed as surgical dusting powders. Another method involved dimethyl sulfoxide as the reaction medium, triethylamine as the catalyst, and trans-carbonates of glycosides as the acylating agents. Thionocarbonates were used similarly. The degree of substitution was O.4.2003 Another method involves 1-acyl I, I -carbodiirnidazole or dicarboxylic acid imidazolides at pH 8.O.2004... 

USE Starching and sizing fabrics etc. paste as indicator in iodometric analyses. In the food industry. Pharmaceutic aid (tablet disintegrant, filler, binder) dusting powder. Dietetic grades of corn starch are marketed as Maizena Mondamin. 

USE Dusting powder, either alone Or with starch or boric acid, for medicinal and toilet prepns excipient and filler for pills, tablets and for dusting tablet molds clarifying liquids by filtration. As pigment in paints, varnishes, rubber filler for paper, rubber, soap in fireproof and cold-water paints lor wood, metal and stone lubricating molds and machinery glove and shoe powder electric and heat insulator. 

OTHER COMMENTS used as an additive to clay in ceramic manufacturing and paper coatings used as a filler in paints, putty, plaster, oilcloth, slate pencils, and crayons formerly used in dusting powder, either alone or with starch or boric acid also used as a pigment in paints, varnishes, and rubber, a filler for paper, rubber, and soap useful as a glove and shoe powder has also been used as an electric and heat insulator. 

VA/crotonates/vinyl neodecanoate copolymer VA/crotonates/vinyl propionate copolymer VA/isobutyl maleate/vinyl neodecanoate copolymer Vinyl acetate Vinyl caprolactam/PVP/dimethylaminoethyl methacrylate copolymer film-former, cosmetics moisturizers Diglycol/CHDM/isophthalates/SIP copolymer film-former, cream rinses Polyquatemium-2 film-former, creams Acetylated lanolin Nitrocellulose film-former, creams/lotions Arachidyl behenate PVM/MA copolymer, isopropyl ester film-former, detergents PVM/MA copolymer film-former, dish detergents Hydrolyzed collagen film-former, disposable gloves Ethylene/methyl acrylate copolymer film-former, dusting powders Rice (Oryza sativa) starch film-former, dyes PVP/VA copolymer film-former, elastomers Dibutyl phthalate... 

Three dusting powders containing boric acid are included in the B.P.C., ue. Boric Talc, 5 per cent of boric acid and 10 per cent of starch in talc Compound Salicylic Acid Dusting Powder, 3 per cent of salicylic acid and 5 per cent of boric acid in talc and Compound Zinc Dusting Powder, containing 5 per cent boric acid, 25 per cent zinc oxide, 35 per cent starch and 35 per cent purified talc. Boric Acid and Starch Dusting Powder, containing 25 per cent of boric acid is official in the B. Vet,C,... 

Compound Dusting-powder of Zinc B.P.C. Zinc oxide 25 per cent and boric acid 5 per cent with starch and talc. 

Dusting-powder of Zinc and Salicylic Acid B.P.C. Zinc oxide, 20 per cent, and salicylic acid, 5 per cent, with starch. 

Dusting-powder of Zinc Starch and Talc, B.P.C. 25 per cent of zinc oxide with starch and talc. 

Dusting-powder of Zinc Undecenoate, B.P,C, Contains 10 per cent of zinc undecenoate with undecenoic acid, pine oil, starch and kaolin. 

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