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AD:WeiFang Developing Zone
ShanDong Province,China
E-mail: yaochanggroup@vip.126.com
Tel:86-536-8664211
Fax:86-536-8664211
MSN：ben-bps@hotmail.com
Mobile：86 13153617615
Skype：ben-bps
Contact person:Ben |
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Sodium Silicofluoride
It is to certificate that the quality of the mentioned product is assayed getting the result as follows:
Product Description: White free flowing powder |
Batch No.: 20180815010 |
Formular: Na2SiF6 |
Purity: 99% |
Standard: GB23936-2009 |
Un No.: 2674 |
Cas No.: 16893-85-9 |
Hs No.: 2826901000 |
Date of Production: 2017-08-15 |
Date of Expiry: 2018-08-15 |
Country of Origin: China |
Packing: In Plastics Bag then to woven Bags. N.W.: 25 kgs for each bag.
Items |
Standard Index |
Results of Analysis% |
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Sodium Silicofluoride |
99.00%MIN |
99.28% |
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Fluor(F) |
59.70%MIN |
60.10% |
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Loss of weight on drying at 105℃ |
0.30%MAX |
0.25% |
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Free acid(as HCl) |
0.10%MAX |
0.083% |
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Chlorides(as Cl-) |
0.10%MAX |
0.08% |
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Sulphate(SO42-) |
0.25%MAX |
0.21% |
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Iron(Fe) |
0.02%MAX |
0.0033% |
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Water-insoluble matter |
0.5% MAX |
0.30% |
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Heavy metal(as Pb) |
0.01%MAX |
0.00035% |
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Particale Size Distribution |
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Passing through 420 micron (40 mesh) sieve |
98% MIN |
100% |
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Passing through 250 micron (60 mesh) sieve |
90% MIN |
99.3% |
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Passing through 150 micron (100 mesh) sieve |
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95% |
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Passing through 74 micron (200 mesh) sieve |
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44.2% |
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Passing through 44 micron (325 mesh) sieve |
25% MAX |
18.9%
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