USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
product name: sodium metabisulfite / sodium metabisulphite
molecular weight: 190.10
specification: 25kg woven bag
quality guarantee period: 6 months
chemical character:
cas no.: 64-19-7
einecs: 200-580-7
molecular formula: c2h4o2
molecular weight: 60.05
melting point: 16.635°c
boiling point: 117.9°c
introduction:
1.company
2.place of orgin: china
specifications:
test item |
specification |
results |
appearance |
colorless transparent liquid |
colorless transparent liquid |
assay |
≥99.5% |
99.6% |
potassium permanganate test time |
≥5min |
170 |
iron |
≤0.0002% |
0.00004% |
evaporation residue |
≤0.02% |
0.008% |
acetaldehyde |
≤0.05% |
0.008% |
formic acid |
≤0.10% |
0.009% |
water content |
≤0.20% |
0.12% |
color(hazen pt-co) |
≤20 |
10 |
conclusion |
qualified |
food grade or industrial grade 99%~99.9%