|
Standard:Q/LNY 043-2003
Appearance: white or light yellow crystalline powder.
Technical requirements:
| Item |
Index |
| Top-grade |
First grade |
Qualified product |
| Assay, ≥ |
99.0 |
99.0 |
98.0 |
| Melting range, °C ≥ |
132 |
132 |
128 |
| As , ≤ |
0.0003 |
0.0003 |
0.0003 |
| Heavy metals(as Pb), ≤ |
0.001 |
0.001 |
0.001 |
| Residue on ignition(as Sulfate ), ≤ |
0.05 |
0.10 |
0.25 |
| Chloride(as Cl-), ≤ |
0.005 |
-- |
-- |
Molecular formula:C9F8O2
Relative molecular mass :148.16
Uses: Relative Density 1.2475(4°C). Melting point 135°C-136°C. Boiling point300°C. : mainly used in sweeting agent, drug and flavor.
Packing & Storage: film bag lined plastic woven bag; load gently, Do not mix with oxidant, food chemicals. Avoid insolation, rain and high temp..
|
