氟硅酸鈉（工業(yè)級）
分子式：Na2SiF6
分子量：188.06
CAS號：16893-85-9
聯(lián)合國編號：2674
海關(guān)編碼：2826.9010.00
【氟硅酸鈉的物化性質(zhì)】 無色無味的白色結(jié)晶或粉末。常溫常壓下性質(zhì)穩(wěn)定，難溶于水和酸，有吸潮性。
【產(chǎn)品質(zhì)量標(biāo)準(zhǔn)】：符合國標(biāo)（GB23936-2009）一級品指標(biāo)要求。
指標(biāo)項(xiàng)目 | 標(biāo)準(zhǔn)值(%) | 實(shí)測值 |
外觀 | 白色粉末 | 白色粉末 |
氟硅酸鈉 (Na2SiF6) | ≥99 | 99.0 |
105℃干燥失重 | ≤0.30 | 0.30 |
游離酸 (as HCL) | ≤0.10 | 0.047 |
氯化物(CL) | ≤0.15 | 0.11 |
水不溶物 | ≤0.4 | 0.017 |
硫酸鹽 (SO4) | ≤0.25 | 0.23 |
鐵（Fe） | ≤0.02 | 0.02 |
水（H2O） | ≤0.4 | 0.18 |
細(xì)度通過250μm篩余物 | ≥90 | 99.4 |
【產(chǎn)品用途】：用于玻璃、瓷釉的乳狀劑和熔和劑，木材防腐，農(nóng)業(yè)殺蟲劑，耐酸水泥吸濕劑，天然乳劑凝結(jié)加速劑，鍍鋅、鎳、鐵添加劑，整形外科堵塞料，制藥業(yè)，飲用水氟化處理，用于人造晶體和氟化鈉的生產(chǎn)。
【包裝】：聚乙烯編織袋內(nèi)襯塑料袋、閥口袋、集裝袋，每袋凈重25公斤或1000公斤，或根據(jù)客戶要求訂做。
【貯運(yùn)】：本品屬無機(jī)有毒物品，宜存放在干燥、通風(fēng)良好的儲存室，不宜與硫酸或食品同運(yùn)和貯存。
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.
