- Carbonate[7]
- Chloride[7]
- Chemical Auxiliary Agent[10]
- Other Chemicals[2]
- Sulphate[10]
- Oxide[7]
- Pharmaceutical[7]
- Flavour & Fragrance[2]
- Agrochemicals & Pesticides[2]
- Organic Intermediate[7]
- Other Organic Chemical[6]
- Daily Chemicals[3]
- Contact Person : Ms. Wang Sara
- Company Name : Joy Chemical Co., Ltd. Nanjing
- Tel : 86-25-56612172
- Fax : 86-25-57226086
- Address : Jiangsu,Nanjing,No. 28, Xifengbeilu, Yongyang Town, Lishui County
- Country/Region : China
- Zip : 211200
industrial grade sodium metabisulfite
Industrial grade sodium metabisulfite
Molecular formula: Na2S2O5
Molecular weight :190.09
melting point >300,
Solubility: soluble in water ,alcohol, and acetone and in acidic solution,
Na2S2O5+ strong acid →SO2+salt, Na2S2O5+O2→Na2S2O6, Na2S2O5(1500°C)→SO2 and others .
1.Storage and transportation : To prevent damage, moisture, heat metamorphism;
To forbid to coexist with acid and xidants, storage for six months.
2.Appearance: white or light yellow power
3.Solubility:Soluble in water, water solution is acidity. Soluble in glycerin, slightly soluble in alcohol
4.Application:Used in bleach agent,mordant in dyeing,reductant,rubber solidifying agent,
also used in organic synthesis, pharmaceutical and spices, etc
6.Specification sheet:
Items | Result |
Na2S2O5 | 97.41 |
Appearance | white crystal power |
Fe(%) | 0.003 |
Pb(%) | 0.0004 |
SO2(%) | 65.04 |
Insoluble matter in water(%) | 0.03 |
As(%) | 0.0001 |
PH | 4.5 |
Clarity | Clear |
industrial grade sodium metabisulfite