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焦亚硫酸钠的工业用途
来源:/ 日期:2022-07-06 发布人:admin
用途:
Purpose:
医药工业用于生产氯仿、苯丙砜和苯甲醛;橡胶工业用作凝固剂;印染工业用作棉布漂白后的脱氯剂,棉布煮炼助剂;制革工业用于皮革处理,能使皮革柔软、丰满、坚韧,具有防水、抗折、耐磨等性能;化学工业用于生产羟基香草醛、盐酸羟胺等;感光工业用作显影剂等;食品工业用于漂白剂、防腐剂、疏松剂、抗氧剂、护色剂、保鲜剂。
The pharmaceutical industry is used to produce chloroform, phenylpropanesulfone and benzaldehyde; Rubber industry used as coagulant; The printing and dyeing industry is used as dechlorination agent after bleaching of cotton cloth and cotton scouring agent; Leather industry is used for leather processing, which can make leather soft, plump, tough, waterproof, folding resistant, wear-resistant and so on; Chemical industry is used to produce hydroxyvanillin, hydroxylamine hydrochloride, etc; Photosensitive industry used as developer, etc; In the food industry, it is used as bleach, preservative, loosening agent, antioxidant, color protector and preservative.


物理性质:
physical property:
白色或微黄色结晶粉末。相对密度1.4,溶于水(20℃时为54驳/100尘濒水;100℃时为81.7驳/100尘濒水)水溶液呈酸性,溶于甘油,微溶于乙醇。受潮易分解,露置空气中易氧化成硫酸钠,与强酸接触放出二氧化硫而生成相应的盐类,加热到150℃分解。
White or yellowish crystalline powder. The relative density is 1.4, soluble in water (54g/100ml water at 20 ℃; 81.7g/100ml water at 100 ℃) the aqueous solution is acidic, soluble in glycerol and slightly soluble in ethanol. It is easy to decompose when exposed to moisture, and it is easy to oxidize into sodium sulfate in the exposed air. When contacting with strong acid, sulfur dioxide is released to generate corresponding salts, which are heated to 150 ℃ for decomposition.
The above is a detailed introduction about refined naphthalene manufacturers. I hope it will help you If you have any questions, please contact us We will provide you with professional service
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