Scouring Powder

Scouring, or abrasive, cleansers are formulated to remove dense accumulations of soils commonly located in small household hard surface areas. 

Baking soda (sodium bicarbonate NaHCO,) is also a mild abrasive cleanser. This chemical absorbs food odors readily, making it appropriate for cleaning areas constantly in contact with foods, including certain types of countertops and the inside of the refrigerator. 

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The following alternative procedure is recommended and it possesses the advantage that the same tube may be used for many sodium fusions. Support a Pyrex test tube (150 X 12 mm.) vertically in a clamp lined with asbestos cloth or with sheet cork. Place a cube (ca. 4 mm. side = 0 04 g.) of freshly cut sodium in the tube and heat the latter imtil the sodium vapour rises 4 5 cm. in the test-tube. Drop a small amount (about 0-05 g.) of the substance, preferably portionwise, directly into the sodium vapour CAUTION there may be a slight explosion) then heat the tube to redness for about 1 minute. Allow the test tube to cool, add 3-4 ml. of methyl alcohol to decompose any unreacted sodium, then halffill the tube with distilled water and boil gently for a few minutes. Filter and use the clear, colourless filtrate for the various tests detailed below. Keep the test-tube for sodium fusions it will usually become discoloured and should be cleaned from time to time with a little scouring powder. 

Trisodium phosphate is strongly alkaline many of its appHcations depend on this property. For example, many heavy-duty cleaning compositions contain trisodium phosphate as a primary alkalinity source. The crystalline dodecahydrate itself is marketed as a cleaning compound and paint remover. Traditionally, trisodium phosphate has been used in water softening to remove polyvalent metal ions by precipitation as insoluble phosphates. Because the hypochlorite complex of trisodium phosphate provides solutions that are strongly alkaline and contain active chlorine, it is used in disinfectant cleaners, scouring powders, and automatic dishwashing formulations. 

Most of the CA produced commercially is chlorinated to produce SDCC, SDCC-H, PDCC, TCCA, and the double salt TCCA4PDCC. These have become standard ingredients in formulations for scouring powders, household bleaches, institutional and industrial cleansers, automatic dishwasher compounds, and general sanitizers, and most importantly, in swimming pool and spa/hot tub disinfection. The choice of chloroisocyanurate for any particular... 

Vitreous, colourless form of free silica. Formed when quartz is heated to 870°C (1598°F). Aporous siliceous rock resulting from the decomposition of chertorsiliceous limestone. Used as a base in soap and scouring powders, in metal polishing, as a filtering agent, and in wood and paint fillers. A cryptocrystalline form of free silica. 

Several of these compounds and their derivatives are commercially and industrially important. Urea has already been mentioned on p. 311. Again, world production of chloroisocyanurates, (C1NC=0)3, in 1987 was ca. 80000 tonnes (50000 tonnes in USA alone, of which 75% went for swimming pool disinfection and most of the rest for scouring powders, household bleaches and dishwashing powder formulations). 

Scheuer-pulver, n. scouring powder, -trommel, /. scouring barrel, tumbling barrel, -wirkung, /. scouring action or effect. 

Copper and nickel alloys Dip for 1-3 min in 1 1 HCl or 1 10 HjSOj at room temperature. Scrub lightly with bristle brush under running water, using fine scouring powder if needed. 

Stainless steels Clean stainless steels in 20% nitric acid at 60°C for 20 min. In place of chemical cleaning, use a brass scraper or brass bristle brush or both, followed by scrubbing with a wet bristle brush and fine scouring powder. 

Chlorine compounds are found all around the home. On the table is sodium chloride, ordinary table salt. In the kitchen and bath are chlorine scouring powders, and chlorine bleach is used in the laundry. Chlorine is used as a disinfectant in swimming pools, and in industry it is used to make paper. 

Silica, or silicon dioxide, occurs in various forms including chalcedony, which is a decorative material chert, which is used in abrasives flint, which is used in abrasives and ceramics jasper, which is used for decorative purposes quartz, which is a constituent of sand tripoli, which is found in scouring powders, polishers, and fillers cristobalite, which is used in high temperature casting and specialty ceramics diatomaceous earth, which is used in filtration processes and as a filler and finally, silica gel, which is used in dehydrating and drying. Note, however, that the material of concern is silica, and not silicates, which are relatively harmless derivatives of silica, nor silicones, synthetic materials used especially as lubricants. Neither silicates nor silicones cause proliferative conditions. 

Scouring powder Acid toilet cleaner Corrosive hydrochloric acid... 

Scouring powders -CA salts m [CYANURIC AND ISOCYANURIC ACIDS] (Vol 7)... 

Orthoclase is found in the New England pegmatites, in New York. Pennsylvania. Virginia. North Carolina. Arkansas. Texas. Colorado. California, and elsewhere. Its commercial use is in the manufacture of porcelain and as a constituent in scouring powders. 

Renal lesions observed after silica exposure have been associated with ANCA positivity suggesting a pathogenetic role of ANCA [64-67]. Other autoimmune manifestations have been reported in a cohort of 50 workers after occupational exposure to a scouring powder mainly containing silica [68]. Systemic symptoms were present in 32 of these subjects including Sjogren s syndrome (n=6), systemic lupus erythematosus (n=3), "overlap" syndrome (n=5) and with undifferentiated... 

Prospective Sanchez- 50 scouring powder / Systemic illness (32) ... 

Use Household dry bleaches, dishwashing compounds, scouring powders and detergent sanitizers, replacement for calcium hypochlorite. 

Hazard Fire risk in contact with organic materials. Use Manufacture of dry laundry bleaches, detergent-bleach washing compound, scouring powders, plastic dishware cleaners, and metal cleaners hair-wave neutralizers, pharmaceuticals general oxidizing reactions. 

Use Washing powders, laundering, wool scouring powders, bottle cleansers, textile cleaners, mild detergents. 

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