Anhydrous Sodium sulfite
 Appearance : white crystalline powder .
Molecular formula : Na2SO3
Packing : double-layer plastic woven bag.
Uses : used in medicine, papermaking, tannage, leather, printing, dyeing, bleaching and food .
Quality standard : Q/320124JM02-2003
Index name |
Premium grade |
Super grade |
First grade |
Salable product |
Industrial grade |
| Sodium sulfite ( Na2SO3 ) , % ≥ |
97.0 |
96.0 |
93.0 |
90.0 |
| Fe , ?≤ |
0.003 |
0.005 |
0.01 |
/ |
| Water insoluble matter , % ≤ |
0.02 |
0.03 |
0.05 |
/ |
| Free alkali ( as Na2SO3 ) , % ≤ |
0.10 |
0.40 |
0.60 |
/ |
| Na2SO4 , % ≤ |
2.50 |
/ |
/ |
/ |
| NaCl , % ≤ |
0.10 |
/ |
/ |
/ |
Company : Hunan Yueyang Sanxiang Chemical Co., Ltd.
Address : Qilishan community, Yueyang, Hunan, China
Tel : +86-730-8555768
Fax :+86-730-8555728
Contact :13907300718 (Ms. Xie), 15873093368 (Mr. Yang)
,13469239119 ( Mr. Wang)
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