有二氧化硫气味。对湿敏感。有酸性反应。与酸接触有二氧化硫逸出。在空气中逐渐氧化成硫酸盐,在湿空气中氧化更快。如研磨成粉灼热时能燃烧。易溶于水,不溶于醇。190℃时分解。有刺激性。 还原剂,显影剂,细菌抑制剂,抗氧剂,制备亚硫酸。
All
Chemical Reagents
Biomedicine
Organic raw materials
Inorganic chemical industry
intermediate
Agricultural chemicals
Auxiliaries and catalysts
Fragrances and Flavors
Dyes and Pigments
Daily chemical industry
Potassium pyrosulfite
Dangerous GoodsCAS number:16731-55-8 molecular formula:K2S2O5
overview
compound introduction
Specs
| Chinese alias | 偏硫代硫酸钾 | 偏重亚硫酸钾 | ||
| English alias | POTASSIUM METABISULFITE | 16731-55-8 | Potassium disulfite | Potassium pyrosulfite | Dipotassium pyrosulfite | Sobisu | potassium metabisulphite | Potassium pentaoxodisulfate | Ins-224 | Potassium metabisulfite [NF] | Potassium metabisulfite (e 224) | 65O | ||
| CAS number | 16731-55-8 | molecular formula | K2S2O5 |
| molecular weight | 222.32 g/mol | Exact mass | 化学纯(CP) |
| PSA | 125.000 Ų | logp | - |
numbering system
No numbering system information yet
physicochemical properties
No physical and chemical property information yet
Safety information
pictogram:
GHS05 , GHS07
Signal word:
Danger
Hazard Statement:
H315: 引起皮肤刺激 H335: 可能引起呼吸道刺激 H318: 造成严重的眼睛损伤
Statement of Preventive Measures:
P261: 避免吸入灰尘/烟雾/气体/雾/蒸汽/喷雾 P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。 P302+P352: 如皮肤沾染:用水充分清洗。 P321: 特殊处理(请参阅此标签上的...)。 P405: 密闭存放 P501: 将内容物/容器处理到。。。 P264: 处理后要彻底洗手。 P271: 仅在室外或通风良好的地方使用。 P304+P340: 如误吸入:将人转移到空气新鲜处,保持呼吸舒适体位。 P403+P233: 存放在通风良好的地方。保持容器密闭。 P362+P364: 脱
Personal protective equipment:
dust mask type N95 (US),Eyeshields,Gloves
UN Number:
1759
Packing Group:
Ⅰ
Production methods and uses
No production method and use information yet
Related
upstream information
No upstream information yet
downstream information
No downstream information yet
MSDS
Found 1 shareMSDS
16731-55-8 | Potassium disulfite.pdf





