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氟硅酸钠

来源:未知   时间:2014-09-02 15:25

 

产品信息
无色六方结晶,无臭无味,相对密度2.679,有吸潮性。溶于乙醚等溶剂中,不溶于醇,在酸中的溶解度比在水中大。在碱液中分解,生成氟化钠和二氧化硅,灼热(300℃)后,分解成氟化钠和四氟化硅。有毒!

产品详细信息

氟硅酸钠

分子式 
Formula:Na2SiF6
分子量
Molecular:188.06
执行标准
Execute standard:企业标准
 
指标/名称Item
优级品Excellent grade
一级品Grade
合格品grade ll
氟硅酸钠)含量sodiumfluorosilicate
%≥99.0
%≥98.5
%≥97.5
铁(fe)lron
%≤0.02
游离酸(以hcl)计)含量freeacid(basedonph)
%≤0.1
%≤0.15
%≤0.2
重金属(以p b计)含量Heavemetal(basedonpb)
%≤0.02
%≤0.05
%≤0.05
水不溶物含量Water-insolublematter
%≤0.4
%≤0.5
%≤1.0
105℃干燥失量LossonDryingat105℃
%≤0.3
%≤0.4
%≤0.6
细度通过250/um试验筛Fineness(through250umrestboltelr)
%≥90.0
%≥90.0
%≥90.0
性状
无色六方结晶,无臭无味,相对密度2.679,有吸潮性。溶于乙醚等溶剂中,不溶于醇,在酸中的溶解度比在水中大。在碱液中分解,生成氟化钠和二氧化硅,灼热(300℃)后,分解成氟化钠和四氟化硅。有毒!
Propertieslt is colorless hexagonal ,odorless and tasteless crysteless crystal with relative density 2.679.It ishygroscopic. It is soluble in ether,insoluble in alcohol.The solubility in acid is greater than in water.It decomposes in alkaline solution and produces sodium fluoride and silicon dioxide.It is decomposed to sodium fluoride and silicon tetrafluoride by heating to300℃.It is toxic.
用途:
木材工业中作防腐剂:耐酸水泥的吸湿器。用作玻璃和陶瓷的乳白剂:农药工业中用于制造杀虫剂;天然乳胶制品中用作凝固剂:电镀锌、镍、铁三无镀层中用作添加剂;还用作塑料添加剂。此外,还用于制药和饮用水的氟化处理,及制造人造冰晶石的氟化钠。
Usages:It is used as antiseptic in timber industry,hygroscopic angent of acid –resisting concret,ivory of glass and enamel,insecticide in pesticide industry,solidifying agent in natural latex products,additive in plating with zinc,nickel,iron and filler in plastic and fluorinating agent in phalmaceuticals and drinking water.lt is used to produce sodium fluoride in man-made cryolite.
包装:
50kg编织袋,内衬塑料袋。
PackingIn 50kg plastic woven bag lined with high pressure polyethylene plastic bag.
储运条件:GB12268-90毒害品61514(Un2674)
Storge and tramsportationgb12268-90poison article 61514(UN2674)