氟硅酸钠（工业级）
分子式：Na2SiF6
分子量：188.06
CAS号：16893-85-9
联合国编号：2674
海关编码：2826.9010.00
【氟硅酸钠的物化性质】 无色无味的白色结晶或粉末。常温常压下性质稳定，难溶于水和酸，有吸潮性。
【产品质量标准】：符合国标（GB23936-2009）一级品指标要求。
指标项目 | 标准值(%) | 实测值 |
外观 | 白色粉末 | 白色粉末 |
氟硅酸钠 (Na2SiF6) | ≥99 | 99.0 |
105℃干燥失重 | ≤0.30 | 0.30 |
游离酸 (as HCL) | ≤0.10 | 0.047 |
氯化物(CL) | ≤0.15 | 0.11 |
水不溶物 | ≤0.4 | 0.017 |
硫酸盐 (SO4) | ≤0.25 | 0.23 |
铁（Fe） | ≤0.02 | 0.02 |
水（H2O） | ≤0.4 | 0.18 |
细度通过250µm筛余物 | ≥90 | 99.4 |
【产品用途】：用于玻璃、瓷釉的乳状剂和熔和剂，木材防腐，农业杀虫剂，耐酸水泥吸湿剂，天然乳剂凝结加速剂，镀锌、镍、铁添加剂，整形外科堵塞料，制药业，饮用水氟化处理，用于人造晶体和氟化钠的生产。
【包装】：聚乙烯编织袋内衬塑料袋、阀口袋、集装袋，每袋净重25公斤或1000公斤，或根据客户要求订做。
【贮运】：本品属无机有毒物品，宜存放在干燥、通风良好的储存室，不宜与硫酸或食品同运和贮存。
Sodium silicofluoride（Industry grade）
Formula：Na2SiF6
Molecular weight：188.06
CAS No.：16893-85-9
UN No.：2674
HS No.：2826.9010.00
[Properties]：Sodium fluorosilicate is odorless and tasteless crystalline or powder. Stable at normal temperature and pressure; It is hard to dissolve in water and acid.
[Quality standard]:qualified with the standard [GB23936-2009].
Item | Standard values(%) | Test result |
Appearance | White powder | White powder |
Sodium silicofluoride (Na2SiF6) | ≥99 | 99.0 |
Loss of weight on drying at 105℃ | ≤0.30 | 0.30 |
Free acid (as HCL) | ≤0.10 | 0.047 |
Chlorides(CL) | ≤0.15 | 0.11 |
Water-insolubles | ≤0.4 | 0.017 |
Sulfate (SO4) | ≤0.25 | 0.23 |
Fe | ≤0.02 | 0.02 |
H2O | ≤0.4 | 0.18 |
Grain size passing through 250µm sieve | ≥90 | 99.4 |
[Application]Milky agent and fusing agent for glass and enamel; preserving agent for wood; agricultural insecticide ; hygroscopic agent for acid-resisting cement; coagulation accelerator in natural emulsion products. Additive in electroplating zinc , nickel and iron in three floors; stuffing agent in plastics; pharmacy, fluorating treatment for drinking water and for man-made crystals and Sodium Fluoride.
[Packing]: polyethylene weaving inner lined with plastic bag，flexible freight bag，Valve mouth bag. Net weight is 25kg or 1000kg.As per customer’s required.
[Storage and transportation ]: Inorganic toxic substance, and should be stored in dry and adequately ventilated warehouse, and may not be co-stored or co-transported with sulfuric acid and edible food.
