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首页 > 供应产品 > 天科化工 碳酸钠河北厂家 无水碳酸钠价格
天科化工 碳酸钠河北厂家 无水碳酸钠价格
产品: 浏览次数:1041天科化工 碳酸钠河北厂家 无水碳酸钠价格 
品牌: 天科
用途类别: 用作分析试剂,如作基准试剂,分解样品熔剂、沉淀剂、缓冲剂、发射光谱分析中样品挥发剂。还用于制备钠盐、
外观: 白色粉末
单价: 6000.00元/吨
最小起订量: 1 吨
供货总量: 90000 吨
发货期限: 自买家付款之日起 天内发货
有效期至: 长期有效
最后更新: 2021-12-27 16:21
 
详细信息
用途类别 用作分析试剂,如作基准试剂,分解样品熔剂、沉淀剂、缓冲剂、发射光谱分析中样品挥发剂。还用于制备钠盐、
外观 白色粉末
包装 袋装
储藏方法 密封,置阴凉干燥处
用途范围 用作分析试剂,如作基准试剂,分解样品熔剂、沉淀剂、缓冲剂、发射光谱分析中样品挥发剂。还用于制备钠盐、
密度 2.532
包装规格 25kg/袋
产地 河北
产品规格 25KG/袋
产品名称 无水碳酸钠
级别 分析纯、化学纯
名称 碳酸钠
执行质量标准 国标
含量 99
CAS 497-19-8
品牌 天科
厂家(产地) 大城县
含量≥ 99

    


        无水碳酸钠(纯碱)        

        分子式:Na2CO3
分子量:105.99
CAS NO:497-19-8
【性状】白色粉末。在空气中逐渐吸收水分成为一水合物。相对密度2.532。400℃开始分解。熔点851℃,易溶于水,不溶于乙醇。水溶液呈碱性。
【用途】用作分析试剂,如作基准试剂,分解样品熔剂、沉淀剂、缓冲剂、发射光谱分析中样品挥发剂。还用于制备钠盐、钠玻璃及影片印洗,光学玻璃等。                                                                                                                                                                                                                                           

                    

                        规格                    

                    

                        指标名称                    

                
                    

                        分析纯-AR                    

                
                    

                        化学纯-CP                    

                
                    

                        含量(Na2CO3) /%                    

                
                    

                        ≥99.8                    

                
                    

                        ≥99.8                    

                
                    

                        澄清度试验                    

                
                    

                        合格                    

                
                    

                        合格                    

                
                    

                        水不溶物                    

                
                    

                        ≤0.01                    

                
                    

                        ≤0.02                    

                
                    

                        干燥失重                    

                
                    

                        ≤1.0                    

                
                    

                        ≤1.0                    

                
                    

                        氯化物(Cl)                    

                
                    

                        ≤0.002                    

                
                    

                        ≤0.005                    

                
                    

                        硫化合物(以SO4计)                    

                
                    

                        ≤0.005                    

                
                    

                        ≤0.01                    

                
                    

                        氮化合物(以N计)                    

                
                    

                        ≤0.001                    

                
                    

                        ≤0.002                    

                
                    

                        磷酸盐及硅酸盐(以SiO3计)                    

                
                    

                        ≤0.006                    

                
                    

                        ≤0.013                    

                
                    

                        镁(Mg)                    

                
                    

                        ≤0.002                    

                
                    

                        ≤0.005                    

                
                    

                        铝(Al)                    

                
                    

                        ≤0.003                    

                
                    

                        ≤0.01                    

                
                    

                        钾(K)                    

                
                    

                        ≤0.005                    

                
                    

                        ≤0.02                    

                
                    

                        钙(Ca)                    

                
                    

                        ≤0.01                    

                
                    

                        ≤0.02                    

                
                    

                        铁(Fe)                    

                
                    

                        ≤0.0005                    

                
                    

                        ≤0.001                    

                
                    

                        重金属(以Pb计)                    

                
                    

                        ≤0.0005                    

                
                    

                        ≤0.001                    

                
    

        【包装】内塑外编、牛皮纸袋或纸板桶,净重25kg。    


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