焦亚流酸钠（工业级，食品级）
分子式：Na2S2O5
质量标准：工业级 HG/T2826-1997
食品级 GB
1893-1998
外观：白色或略带微黄色晶粉末
包装：复合塑料编织袋内衬聚乙烯塑料薄膜袋，净含量25kg/袋；柔性集装袋内衬聚乙薄膜，净含量1000kg/袋或1100kg/袋
指标名称 |
工业焦亚硫酸钠 |
食品添加剂
焦亚硫酸钠 |
一级 |
二级 |
外观 |
白色或微黄色结晶粉末 |
白色或微黄色结晶粉末 |
焦亚硫酸钠(以SO2计)，% ≥ |
65.0 |
62.7 |
65.0 |
铁(Fe)，%
≤ |
0.005 |
0.005 |
0.005 |
水不溶物，%
≤ |
0.05 |
0.10 |
0.05 |
PH |
4.0—4.6 |
4.0—5.0 |
4.0—4.6 |
重金属(以 Pb
计)≤ |
— |
— |
0.002 |
砷(As)，%
≤ |
— |
— |
0.0002 |
用途：可作为印染媒染剂，织物漂百后的脱氯剂；纸纤维漂白剂；化工医药用还原性和磺化剂；有色金属选矿剂；食品保存，酿造工业和饮料的杀菌防腐剂；废水处理剂；制革工业皮革处理剂；橡胶凝固剂等
保存期：自生产之日起半年
运输及注意贮存事项：在运输过程中应防止雨淋，受潮，防暴晒和包装破损；严禁与酸类，氧化剂和有毒有害物质共储混运。应贮存于通风干燥，无腐蚀的仓库内。受潮易分解，露置空气中易氧化变质并不断放出SO2气体，不宜久存。
Sodium
Metabisulphite
Technical Literature
Properties : White or buff
crystal powder.
Application: Mainly
used in printing and dyeing, medicine, tanning,
etc.
Packing:< 25kg/bag
Formula:
Na2S2O5
Standard: GB 1893-86
Items |
Specification |
Result |
Sodium Metabisulphite(as
SO2) |
65% min |
65.2% |
Iron Content |
0.005% max |
0.003% |
Water-insoluble |
0.05% max |
0.043% |
pH Value |
4.0~4.6 |
4.4 |
Heavy Metal(as Pb) |
0.001% max |
0.001% max |
As |
0.0002% max |
0.0001%
max |
Main
use:
Dye printing mordant;
Textile antichlor after being
bleached;
Reducing agent and
sulfonating agent for chemical and medical
use;
Bamboo, wood, paper fiber
bleaching agent, non-ferrous metal ore dressing
agent, waste water treating , rubber freezing
agent; Bleaching agent(such as candy, cakes,
dried slices of tender bamboo shoots etc.)
Loosening agent（such as bread,
biscuits etc.）preservative,disinfector（such as
jam and can etc.）；Antioxidant, antistaling
agent（such as seafood, fruits, vegetables
etc.）
Packaging: Polypropylene woven bag
lined with polyethylene plastic bag.NW:25,50,
1000kg/bag.
|
