CALCIUM SULFITE

CALCIUM SULFITE C화학적 특성, 용도, 생산

화학적 성질

CaSO3.2H2O, white precipitate, pKsp = 7.9, formed by reaction of soluble calcium salt solution and sodium sulfite solution, or by boiling calcium hydrogen sulfite solution; calcium hydrogen sulfite, Ca(HSO3)2, formed in solution by saturating calcium hydroxide or carbonate suspension with sulfurous acid.

용도

A major use of calcium sulfite in the past has been the use of “lime” (Ca(OH)2) in “flue-gas” desulphurization (removal of SO2 gas) at “fossil-fuel” electrical power generating plants. Since calcium sulfite is relatively insoluble in water, it can be removed from the slurry by filtration and converted to gypsum, CaSO4·2H2O. The other usage of calcium sulfite or bisulfite compounds has been in the “wood-pulping” industry.

제조 방법

Calcium sulfite can be prepared by the reaction of sodium sulfite with calcium chloride:
CaCl2＋ Na2SO3→CaSO3＋ 2NaCl
The dihydrate, CaSO3·2H2O is formed. This salt is white powder that is soluble in dilute sulfurous acid to form the bisulfite. It may be dehydrated at 150°C to form the anhydrous salt. It is used in the sulfite process for the manufacture of wood pulp.

CALCIUM SULFITE 준비 용품 및 원자재

원자재

준비 용품

CALCIUM SULFITE 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Beijing Hengye Zhongyuan Chemical Co., Ltd	--	13552281129@163.com	China	6168	64
ChemService Inc.	--		United States	6383	68
MP Biomedicals, Inc.	--		United States	6566	81
Pfaltz & Bauer, Inc.	--	sales@pfaltzandbauer.com	United States	6830	72
Nacalai Tesque, Inc.	--	info-tech@nacalai.co.jp	Japan	6048	75
World Metal, LLC	--	sales@worldmetalllc.com	United States	102	38
Aithaca Chemical Corp.	--	sales@aithaca.com	United States	1684	30
City Chemicals Corporation	--		United States	6462	72
Advanced Technology & Industrial Co., Ltd.	--	sales@advtechind.com	China	6531	75

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