 Name: |
Sodium tetrafluoroborate |
| Molecular formula: |
NaBF 4 |
|
Molecular weight : |
109.811 |
| CAS NO.: |
13755-29-8 |
|
Use : |
In textiles printing & dyeing industry, catalysts, and foundry of aluminium magnesium alloy |
|
Toxicity and protection : |
Highly corrosive to skin and mucous membrane; irritating to eyes and respiratory system. Max. concentration allowed is 2.5mg/m3. If contact eyes or body, wash eyes with clean water, and soap for body. If serious, go to the hospital. Respirator, rubber gloves and working clothes should be worn in operation.
|
|
Packing and storage : |
In polyvinyl plastic drum with carton outside. Net wt. 1KG/drum. Should be stored in cool and dry place. Closed tight, avoid damage to the package; avoid rain, solarization and moisture.
|
| Properties |
white or colorless crystal.When it is dry, sodium tetrafluoroborate is not corrosive to glass. Relative density (20 ) is 2.47. M.P. is 384 (decomposed); easily soluble in water, slightly soluble in alcohols; decomposed in sulphuric acid. |
| Quality Index: |
Item |
Index |
A.R. |
C.P. |
Sodium borofluoride (NaBF4)%≥ |
98 |
99 |
Chlorides (Cl) % ≤ |
0.005 |
0.0025 |
Sulphates (SO 4 ) % ≤ |
0.005 |
0.005 |
Phosphate (PO 4 ) % ≤ |
0.01 |
0.0056 |
Silicon dioxide( SiO 2 ) % ≤ |
0.3 |
0.2 |
Ferrum (Fe) % ≤ |
0.005 |
0.0025 |
Plumbum (Pb) % ≤ |
0.004 |
0.002 |
|
