Language
Negotiable
The date of payment from buyers deliver within days
Beijing
Long-term effective
2017-11-24 08:39
113
chinary(Ms.)
Beijing
A1-A2, 5F, Times Square, Wenzhou, Zhejiang, China (325000)
Specifications | 2nd grade | 1st grade | CP(chemical purity) | AR | USP/FCC grade |
NaF | 98.0% min. | 99.0% min. | 98.0% min. | 98.0% min. | 98.0-102.0% |
Fluoride as F | / | / | / | / | 44.0-46.0% |
Free acid (HF) | 0.1% max. | 0.1% max. | / | / | / |
SO4 | 0.3% max. | 0.1% max. | 0.05% max. | 0.03% max. | / |
SiO2 | 0.4% max | 0.4% max | / | / | / |
Na2CO3 | 0.5% max. | 0.1% max. | / | / | / |
Insoluble Matter in Water | 0.7% max. | 0.3% max. | 0.1% max. | 0.05% max. | / |
Moisture | 0.5% max. | 0.2% max. | / | / | / |
Heavy Metal (as Pb) | / | 0.005% max | 0.005% max | 0.003% max. | 0.003% max. |
Acidity as H | 0.1% max | 0.1% max | 10 mmol/100g % max. | 5 mmol/100g % max. | / |
Chloride | 0.02% max | 0.01% max. | 0.01% max. | 0.005% max. | 0.008% max. |
Fe | / | / | 0.005% max. | 0.005% max. | 0.002% max. |
Arsenic as As2O3 | / | / | / | / | 0.0002% max. |
Loss on Drying | / | / | / | / | 1.0% max. |
Alkalinity as OH | / | / | 4 mmol/100g % max. | 2 mmol/100g % max. | Passes test |
Fluosilicate (SiF6) | / | / | 1.2% max. | 0.6% max. | Passes test |
Solubility test, 2% (W/V) water solution | / | / | Passes test | Passes test | Passes test |
Texture | / | / | / | / | Passes test |
Identification tests A & B | / | / | / | / | Passes test |