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Solvay process

Solvay process [for Ernest Solvay ], commercial process for the manufacture of sodium carbonate (washing soda). Ammonia and carbon dioxide are passed into a saturated sodium chloride solution to form soluble ammonium hydrogen carbonate, which reacts with the sodium chloride to form soluble ammonium chloride and a precipitate of sodium hydrogen carbonate (sodium bicarbonate) if the temperature is maintained below 15°C. The sodium hydrogen carbonate is filtered off and heated to produce sodium carbonate.

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	Baling Petrochemical Company's fused alkali recovery unit went into operation.(Project News)(Brief Article) Magazine article from: China Chemical Reporter; 12/6/2003; 88 words ; A 7 000 t/a sodium carbonate coarse powder's fused alkali...this unit can recover the fused sodium carbonate produced by waste alkaline liquor...the river and recovered the sodium carbonate products, which reduced the... Read more
	IRAN - Shiraz Fertiliser Plant. Newspaper article from: APS Review Downstream Trends; 4/12/1999; 230 words ; ...240 - Monoammonium phosphate (MAP) 240 - Diammonium phosphate (DAP) 240 - Ammonium nitrate 287 - Sodium carbonate 60 - Heavy sodium carbonate 51 - Sodium bicarbonate 10 - Sodium tripolyphospate 30 - Ammonium disulfate 20 - Nitrate 10 - Methanol... Read more
	Overpowering manure. (Livestock Issues). Magazine article from: Environmental Health Perspectives; 4/1/2002; ; 615 words ; ...dairy cow manure, then added sodium carbonate, a cheap and readily available...Within 5 days, 4 grams of sodium carbonate per kilogram of manure reduced...equipment. Russell found that sodium carbonate also kills many other human... Read more
	Successful research of the fused sodium carbonate recovery unit.(Institute of Mechanics CAS and Hunan Yueyang Baling Petrochemical Company Ltd.)(Brief article) Magazine article from: China Chemical Reporter; 6/26/2006; 183 words ; ...conducted successful research of the fused sodium carbonate recovery unit. Not only the problem...contact with other substances, fused sodium carbonate is crushed by gas/water flow to render...low corrosion and low temperature. Sodium carbonate is then taken back to the recovery... Read more
	CSIR patents detergent-free scouring composition.(Patent Review) Magazine article from: Household & Personal Products Industry; 2/1/2006; 52 words ; ...composition has been assigned to the Council of Scientific & Industrial Research, India. The composition includes a surfactant, sodium carbonate, sodium bicarbonate, processed clay, bentonite clay, sodium chloride, fly ash and optional ingredients such as colors and... Read more
	IRAN: SHIRAZ OUTPUT - STATISTICS. Newspaper article from: IPR Strategic Business Information Database; 8/8/2005; 60 words ; ...starting March 21, a director said. Majid Rastgarian said the products had been supplied on domestic markets only. The company also produces methanol, nitric acid, ammonium nitrate, sodium carbonate and argon. The products in this company total 16. Read more
	What is glass made of?(Science Letters? What makes popcorn pop?)(Brief article) Magazine article from: Highlights for Children; 10/1/2008; ; 94 words ; ...both difficult and expensive to bring a substance to such high heat. It's also possible to make glass by adding sand to sodium carbonate and limestone. After those materials are mixed together, they can melt at a lower temperature to make glass. Ask a science... Read more
	Calcium sulfate may limit C. jejuni contamination of fresh poultry. Newspaper article from: Microbial Update International; 10/1/2004; 426 words ; ...sodium benzoate, sodium chlorate, sodium carbonate and sodium hydroxide for their ability...composed of 0.5% acetic acid, 25 mM sodium carbonate or 0.05 N sodium hydroxide reduced...cfu per g. A treatment of 100 mM sodium carbonate for up to 45 seconds reduced the amount... Read more
	The making of a photographic image. (successful black-and-white darkroom technique) Magazine article from: PSA Journal; 8/1/1993; ; 700+ words ; ...salt to metallic silver. Of the alkalis used in developer, sodium carbonate is often used. Any Kodak formula that has DK in front of...4 ounces Sodium Sulphite 1 pound Hydroquinone 4 ounces Sodium Carbonate 1 pound Kodalk 1 pound Potassium Bromide 4 ounces With... Read more
	Formulating Car Care Products. Magazine article from: Household & Personal Products Industry; 3/1/2001; ; 700+ words ; ...Wt. Water 88.0 Tetrasodium EDTA 2.0 Sodium carbonate 4.0 Sodium metasilicate 3.0 pentahydrate...Wt. Water 90.0 Tetrasodium EDTA 3.0 Sodium carbonate 2.0 Sodium metasilicate 2.0 pentahydrate...wash soaps are made with LAS and some sodium carbonate and sodium metasilicate ... Read more

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Related entries from encyclopedias, dictionaries, and thesauruses

	Ernest Solvay Book article from: The Columbia Encyclopedia, Sixth Edition ...industrial chemist and philanthropist. He originated the Solvay process and established (1863) near Charleroi, Belgium, the first...set up in many countries. He founded at Brussels the Solvay institutes of physiology (1893) and sociology (1901... Read more
	soda Book article from: World Encyclopedia ...especially sodium carbonate (Na 2 CO 3 ), usually manufactured from common salt (sodium chloride, NaCl) and ammonia by the Solvay process. The anhydrous (lacking water) form is known as soda ash; washing soda is hydrated sodium carbonate (Na 2 CO 3 .10H... Read more
	Baking Soda Book article from: How Products Are Made ...where it replaced the Leblanc process. In the Solvay process, carbon dioxide and ammonia...obtained either through the Solvay process or from trona ore, a hard, crystalline...years. Because the synthetic process used in the Solvay method p Read more
	Leblanc, Nicolas Book article from: Chemistry: Foundations and Applications ...By that time the Leblanc process was facing competition from the newer Solvay (ammonia soda) alkali...most notably the Deacon process (1868), which converted...however, the Leblanc and Solvay processes were eclipsed by new electrolytic... Read more
	sodium carbonate Book article from: The Columbia Encyclopedia, Sixth Edition ...soda ash or, simply, soda. The Solvay process provides most sodium carbonate...of chemicals. It is also used in processing wood pulp to make paper, in making...other applications. The Leblanc process, the first successful commercial... Read more

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