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无水硫酸钠
Sodium sulfate
CAS号: 7757-82-6
分子式: Na2O4S
分子量: 142.04
别名: 芒硝,盐饼;无水硫酸钠
分子结构式:
  货号   品名   产品规格   包装   单价(RMB)   促销价(RMB) 可用库存 备注 数量
114667 无水硫酸钠 AR 500g 30.00 28.5 >10 促销
114666 无水硫酸钠 CP 500g 25.00 23.75 >10 促销
114665 无水硫酸钠 GR,99% 500g 33.00 31.35 >10 Q-D
114664 无水硫酸钠 农残级 500g 186.00 176.7 >10 Q-D
114663 无水硫酸钠 HPLC,≥99.0% 100g 129.00 122.55 >10 J-K
114662 无水硫酸钠 分析标准品, pestizides≤1 ppm 500g 256.00 243.2 >10 J-K
114661 无水硫酸钠 SP 25g 72.00 68.4 >10 Q-D
114660 无水硫酸钠 99.99% 25g 72.00 68.4 >10 Q-D
114659 无水硫酸钠 PT 100g 69.00 65.55 >10 Q-D
性状
质量标准
用途
危险性质
贮存

白色单斜晶系结晶或粉末。 溶于水,水溶液呈碱性。溶于甘油,不溶于乙醇。
熔点  884 °C(lit.)
沸点  1700°C
密度  2.68 g/mL at 25 °C(lit.)
折射率  1.484
 

GB/T 9853-88
项目Item                                              分析纯     化学纯
                                                                (AR)       (CP)
含量(Na2SO4)Assay,%                    ≥  99.0       98.0
pH(50g/L溶液,25℃)pH                      5.0-8.0   5.0-8.0
of water solution
澄清度试验Clarity                          合格      合格
水不溶物Insoluble matter in water,%    ≤  0.005     0.02
灼烧失重Ignition loss,%                ≤  0.2       0.5
氯化物(Cl)Chloride,%                   ≤  0.001     0.005
总氮量(N)Total nitrogen,%             ≤  0.0005    0.001
磷酸盐(PO4)Phosphate,%                 ≤  0.001     0.002
钾(K)Potassium,%                       ≤  0.01       --
钙(Ca)Calcium,%                        ≤  0.002     0.005
铁(Fe)Iron,%                           ≤  0.0005    0.0015
重金属(以Pb计)Heavy metals,%           ≤  0.0005    0.002

ACS级
项目名称                                          ACS Grade
含量(Na2SO4)Assay                                   ≥99.0%
pH(5%溶液,25.0℃)pH of a 5% solution at 25.0℃      5.2-9.2
水不溶物Insoluble matter                            ≤0.001%
灼烧残渣Residue after ignition                      ≤0.5%
氯化物(Cl)Chloride(Cl)                              ≤0.001%
含氮化合物(以N计)Nitrogen compounds                 ≤5ppm
磷酸盐(PO4)Phosphate                                ≤0.001%
重金属(以Pb计)Heavy metals(as Pb)                   ≤5ppm
铁(Fe)Iron(Fe)                                      ≤0.001%
钙(Ca)Calcium                                       ≤0.01%
镁(Mg)Magnesium                                     ≤0.005%
钾(K)Potassium                                      ≤0.01%
萃取-浓缩的适应性实验Extraction-concentration
suitability                                         Passes test



品级Grade                               色谱级  
                                (grade for HPLC,≥99.0% (T))
外观Appearance                          White Powder
纯度Purity                              ≥99.0% (T)
非溶性物质insoluble matter,             passes filter test
水溶性solubility H2O:                   soluble1 M at 20 °C, clear, colorless
λ                                 10 % in H2O
UV absorption λ: 220 nm A:              ≤0.1
  λ: 230 nm A:                          ≤0.05
  λ: 240 nm A:                          ≤0.03
  λ: 250 nm A:                          ≤0.02
  λ: 500 nm A:                          ≤0.02


99.99% metals basis:


外观Appearance                          White Powder and/or Chunks
纯度Purity                              ≥99.99% Based on Trace Metals Impurities
硫酸根Gravimetric Analysis(% SO4)       66.3 - 69.0 %
  , With Barium Chloride
ICP Major Analysis                      Confirmed
总痕量金属杂质total metallic impurities ≤100.0 ppm



99.999% metals basis:


外观Appearance                          White Powder and/or Chunks
纯度Purity                              ≥99.999% Based on Trace Metals Impurities
硫酸根Gravimetric Analysis(% SO4)       66.3 - 69.0 %
  , With Barium Chloride
ICP Major Analysis                      Confirmed
总痕量金属杂质total metallic impurities ≤10.0 ppm


品级Grade                               植物细胞培养级  
                                (for plant cell culture, ≥99.0%)
外观appearance                          white to off-white powder
水溶性solubility                        clear colorless solution at 10 g plus 100 ml water
干燥损失loss on drying                  ≤0.5%
纯度Purity                              ≥99.0% (T)
植物细胞培养试验plant cell culture test passes


品级Grade                               药典级  
                                   (suitable for use as Ph Eur,BP,USP)
含量assay                              99.0-100.5% (calc. to the dried substance)
酸度或者碱度acidity or alkalinity,     complies
残留溶剂residual solvents,             complies
重金属heavy metals (as Pb)             ≤0.001%  
游离碱free alkali (as NaOH)            ≤0.04%  
游离酸free acid (as H2SO4)             ≤0.05%  
干燥损失loss on drying, 130 °C        ≤0.5%  
氯chloride (Cl-):                      ≤200 ppm
砷As:                                  ≤2 ppm
钙Ca:                                  ≤50 ppm
铁Fe:                                  ≤50 ppm
镁Mg:                                  ≤50 ppm
锌Zn:                                  ≤300 ppm
溶液外观appearance of solution         complies
 

用途  焦糖色素制造用剂。食用色素稀释剂。
用途  用作分析试剂和脱水剂

 


 

危险品标志  Xi
WGK Germany  1
RTECS号 WE1650000
F  3
危险类别码  36/37/38
安全说明  24/25
 

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