连二亚硫酸钠/保险粉 SODIUM HYDROSULFITE
保险粉广泛用于纺织工业的还原性染色、还原清洗、印花和脱色及用作丝、毛、尼龙等织物的漂白,由于它不含重金属,经漂白后的织物色泽鲜艳,不易退色。在各种物质方面,保险粉还可用于食品漂白,诸如明胶、蔗糖、蜜等,肥皂、动(植)物油、竹器、瓷土的漂白等。保险粉还可应用于有机合成,如染料、药品的生产里作还原剂或漂白剂,它是最适合木浆造纸的漂白剂。而且在水处理和控制污染方面可将许多重金属离子如Pb2+,Bi3+等还原为金属,还可用于保存食物水果等。
保险粉
Sodium Hydrosulfite
产品名称Product
连二亚硫酸钠(保险粉)Sodium Hydrosulfite
物质特征Properties
分子式: Na2S2O4 危险级别: 4.2级 CAS号 : 7775 -14-6
Molecular formula Risk Level CAS No.
产品用途Applications
- 纺织行业用作还原染料染色的还原剂、还原性漂毛剂 还原染料印花助剂、丝绸的精炼与漂白剂、染色物的剥色剂及染缸的清洗剂等。
- 纸浆造纸业用作机械奖、热磨机械奖及脱墨奖的漂白剂
- 食品行业用作食糖、糖果、蜜饯、饴糖、饼干、粉丝等漂白剂和食品保鲜剂。
- 作为还原漂白剂广泛用于高岭土的漂白;毛皮的漂白和还原增白;竹制和草编制品的漂白等。
- 化学工业中用作还原剂。
1. The textile industry for vat dyes stain reducing agent, reduction of hair bleaching agents, vat dyes printing auxiliaries, silk scouring and bleaching agent, dyeing properties of the stripping agent and dye vat cleaning agents.
2. Pulp and paper industry as a mechanical pulp, thermo mechanical pulp and de-ingking pulp bleaching agent.
3. The food industry as sugar, candy, candied fruit, caramel, cookies, fans, etc. Bleach and food preservative.
4. Widely used as a reducing bleaching agent bleaching kaolin; fur whitening bleaching and reduction; bamboo and straw products, bleach and ther products.
5. The chemical industry as a reducing agent.
产品技术指标Specification
项目Contents |
工业级 Industrial Grade |
||
90% |
88% |
85% |
|
Na2S2O4 ( % ) |
90 |
88 |
85 |
Na2CO3 ( % ) |
1.0 – 5.0 |
1.0 – 5.0 |
1.0 – 5.0 |
铁 (Fe) (ppm) |
20 |
20 |
20 |
锌 (Zn) (ppm) |
1 |
1 |
1 |
重金属总含量 (ppm) (以Pb计) |
1 |
1 |
1 |
水不溶物(%) |
0.05 |
0.05 |
0.05 |
保质期(月) Shelf life(month) |
12 |
12 |
12 |
外观 |
白色结晶粉末 |
||
气味 |
无味或略带而氧化硫气味 |