广州万从化工有限公司向全国(包括广东、上海、北京、江苏、浙江、山东及香港等地区)及客户提供各类产品价格、性质、结构式和化学式,如您想了解更多详细信息,欢迎拨打020-82552587或在线联系客服,万从化工竭诚为您服务,万从与您共同进步! 别名 ;,,钠氧条,苛性曹达,固碱,火碱 性状 易吸收空气中的水分和。1g溶于0.9ml冷水、0.3ml沸水、7.2ml无水、4.2ml,溶于甘油。溶于水、时或溶液与混和时产生剧热。溶液呈强碱性。有腐蚀性。半数致死量 (小鼠,腹腔)40mg/kg。 gb/t 629-199 项目item 优级纯 分析纯 化学纯 (gr) (ar) (cp) 含量(naoh)assay,% ≥ 97.0 96.0 95.0 碳酸盐(以naco 3 计) carbonate,% ≤ 1.0 1.5 3.0 澄清度试验clarity 合格 合格 合格 化物(cl)chloride,% ≤ 0.002 0.005 0.01 酸盐(so 4 )sulfate,% ≤ 0.002 0.005 0.02 总氮量(n)total nitrogen,% ≤ 0.0005 0.001 0.002 盐(po 4 )phosphate,% ≤ 0.0005 0.001 0.002 硅酸盐(sio 3 )silicate,% ≤ 0.005 0.01 0.05 (mg)magnesium,% ≤ 0.0005 -- -- 铝(al)aluminum,% ≤ 0.001 0.002 0.005 (k)potassium,% ≤ 0.02 0.05 -- 钙(ca)calcium,% ≤ 0.002 0.01 0.05 铁(fe)iron,% ≤ 0.005 0.001 0.002 镍(ni)nickel,% ≤ 0.001 -- -- 锌(zn)zinc,% ≤ 0.001 -- -- (as)aenic,% ≤ 0.001 -- -- 重金属(以pb计)heavy metals,% ≤ 0.001 0.003 0.003 acs级 项目名称 acs grade 含量(naoh)assay ≥97% 碳酸钠sodium carbonate ≤1.0% 酸盐(so 4 )sulfate ≤0.003% 化物(cl)chloride ≤0.005% 氮化合物(以n计)nitrogen compounds ≤0.001% 盐(po 4 )phosphate ≤0.001% 重金属(以pb计)heavy metals ≤0.002% 铁(fe)iron(fe) ≤0.001% 镍(ni)nickel ≤0.001% (hg)mercurous ≤0.1ppm 钙(ca)calcium ≤0.005% (mg)magnesium ≤0.002% (k)potassium ≤0.02% 品级grade 药用级 (ph. eur., bp, nf, e524, 98-100.5%, pellets ) 含量assay 98-100.5% 总氮total nitrogen (n) ≤0.0005% 重金属heavy metals (as pb) ≤0.002% 碳酸钠na2co3 ≤0.5% 离子chloride (cl-): ≤20 ppm 根phosphate (po43-): ≤10 ppm 硅酸根silicate (as sio2): ≤100 ppm 酸根sulfate (so42-): ≤30 ppm al: ≤10 ppm as: ≤2 ppm 钙ca: ≤10 ppm 铁fe: ≤10 ppm hg: ≤1 ppm k: ≤1000 ppm 铅pb: ≤0.5 ppm 品级grade 电子级, 99.99% metals basis (semiconductor grade, 99.99% metals basis) 外观appearance white pellets x-射线衍射分析x-ray diffraction conforms to structure 纯度purity ≥99.99% based on trace metals analysis by icp and aa combined naoh(titration by hcl) 95.0 % 碳酸钠na2co3 1.0 % 痕量金属分析total metallic impurities ≤200ppm by icp atomic emission ≥98%, pellets (anhydrous): 外观appearance white pellets 水溶性solubility clear colorless,100 mg/ml, h2o 纯度purity(titration by hcl) ≥ 98 % 碳酸钠杂质impurity(as na2co3) ≤1.0 % 品级grade 荧光 (for luminescence, ≥98.0% (t), pellets) 外观appearance pellets 含量assay ≥98.0% (t) 不溶物ioluble matter, passes filter test 总氮total nitrogen (n) ≤0.0003% 二氧化硅silicon dioxide (sio2) ≤0.0005% 碳酸钠sodium carbonate (na2co3) ≤1.0% 水溶性solubility h2o: soluble1 m at 20 °c, clear, colorless anion traces chloride (cl-): ≤10 ppm phosphate (po43-): ≤5 ppm sulfate (so42-): ≤5 ppm cation traces ag: ≤5 ppm al: ≤5 ppm as: ≤0.1 ppm ba: ≤5 ppm bi: ≤5 ppm ca: ≤10 ppm cd: ≤5 ppm co: ≤5 ppm cr: ≤5 ppm cu: ≤5 ppm fe: ≤5 ppm hg: ≤0.1 ppm k: ≤200 ppm li: ≤5 ppm mg: ≤5 ppm mn: ≤5 ppm mo: ≤5 ppm ni: ≤5 ppm pb: ≤5 ppm sr: ≤5 ppm zn: ≤5 ppm λ 1 m in h2o uv absorption λ: 260 nm a: ≤0.015 uv absorption λ: 280 nm a: ≤0.01 suitability in accordance for luminescence 品级grade acs级,, k ≤0.02%, ≥98.0% (t), 片状 (acs, k ≤0.02%, ≥98.0% (t), pellets) 外观appearance pellets 含量assay ≥98.0% (t) 总氮total nitrogen (n) ≤0.0003% 二氧化硅silicon dioxide (sio2) ≤0.0005% 碳酸钠sodium carbonate (na2co3) ≤1.0% 水溶性solubility h2o: soluble1 m at 20 °c, clear, colorless anion traces chloride (cl-): ≤10 ppm phosphate (po43-): ≤5 ppm sulfate (so42-): ≤5 ppm cation traces ag: ≤5 ppm al: ≤5 ppm as: ≤0.1 ppm ba: ≤5 ppm bi: ≤5 ppm ca: ≤10 ppm cd: ≤5 ppm co: ≤5 ppm cr: ≤5 ppm cu: ≤5 ppm fe: ≤5 ppm hg: ≤0.1 ppm k: ≤200 ppm li: ≤5 ppm mg: ≤5 ppm mn: ≤5 ppm mo: ≤5 ppm ni: ≤5 ppm pb: ≤5 ppm sr: ≤5 ppm zn: ≤5 ppm 贮存 密封干燥保存。 用途 广泛应用的基本分析试剂。配制分析用标准碱液。少量和水分的吸收剂。酸的中和。钠盐制造。
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