Silicic acid
        
        Molecular Structure:
 
        MDL:
MFCD00054122 
        Molecular Formula:
	近似式H2SiO3
        Molecular Weight:
	79.10
        Alias:
	含水二氧化硅,矽酸
        Product order:
        
          
            | Name | Specifications | Packing | Price | Delivery | 
          
            | Silicic acid | AR | 500g | RMB 121 | Consulting service | 
        
         
        Character:
	白色无定形粉未或块状,易溶于氢氟酸,有溶于热氢氧化钾或氢氧化钠的溶液,不溶于水或酸。本品是高纯度不规则颗粒的试剂硅胶,化学性能稳定,不溶于酸(氢氟酸除外),溶于苛性碱溶液。主要用作化学试剂,钨丝加工及机械热处理的熔剂。
        Quality Standard:
	项目Item                        分析纯   化学纯
                                 (AR)     (CP)
灼烧失重Ignition loss,%         20~28   20~28  
氯化物(Cl)Chloride,%           ≤ 0.005   0.005
硫酸盐(SO4)Sulfate,%           ≤ 0.02    0.02
铁(Fe)Iron,%                   ≤ 0.005   0.005
重金属Heavy metals,%           ≤ 0.005   0.01
不挥发物Novolatile             ≤ 0.2     0.4
        Storage:
	密封保存。
		
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