波多野结衣成人影片,日韩一级片网址,殴美老少z0z0,瑟瑟爱亚洲,毛片黄色一级

Service hotline: 0571-86692169

Sodium bisulfite solution

Product Name: Sodium Bisulfite
English name: Sodium Hydrogen Sulfite
Aliase: sodium bisulfite; acid sodium sulfite
Product Category: Chemical raw materials
CAS: 7631-90-5

Molecular formula: NaHSO3

Molecular weight: 104.06
Properties: white crystalline powder. It has the smell of sulfur dioxide and has an unpleasant taste. Part of the sulphur dioxide is lost in the exposed air and oxidized to sulfate. It is dissolved in 3.5 parts of cold water, 2 parts of boiling water, and about 70 parts of ethanol, and the aqueous solution is acidic.
Uses: 1. Used for bleaching cotton fabrics and organic materials; 2. Used as reducing agent in dyes, paper making, leather making, chemical synthesis, etc. 3. Used in the pharmaceutical industry for the production of intermediates of dipyridamole and aminopyrine ; 4. Food grade products used as bleach, preservatives, antioxidants; 5. For the treatment of chromium-containing wastewater, and used as an electroplating additive.
Storage: Store in a cool, ventilated warehouse. Keep away from fire and heat. Protect from direct sunlight. The package is sealed. It should be stored separately from oxidants, acids and alkalis, and should not be mixed. It should not be stored for a long time to avoid deterioration. The storage area should be provided with suitable materials to contain spills.

亚洲aaa视频| 韩日AV网站| 春色激情站| av高清在线| 日韩无码电影AV| 无码探花资源网站| 丁香操加勒比| 婷婷丁香涩| 日韩三级a片网站| 久久亚洲伊人| 久久六月天| 96亚洲视频| 日韩AV在线免费观看| 毛片不卡myd| 久久久特别黄色一级片| 日本A片一区| 2025日韩无码| 手机AV高清网址| 日韩无码2025| av人人操| 亚洲成人一区黄色电影| 色婷日日综合久久亚洲| 色色五月天亚洲| 岛国免费黄色| 午夜一级婬片A片免费放| 亚洲特级毛片| 人兽AV网站| 日韩无码 第1页| 亚无码一区二区| 超碰av在线观看| 黄色电影A片视频| 欧亚毛片| a片在线观看网站| 超碰操人人| 日韩成人无码手机| 久艹成人在线| 欧美成人AⅤ| 看AV网站| 成人aV高清无码| 久草成人黄色影视网站| 亚洲天堂AV无码|