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Potassium bromide

Cas:
7758-02-3
Molecular Structure:
MDL:
MFCD00011358
Molecular Formula:
KBr
Molecular Weight:
119.00
Alias:
钾溴,灰钾 bromide salt of potassium
Product order:
Name Specifications Packing Price Delivery
Potassium bromide AR 500g RMB 93.5 现货
Potassium bromide GR 500g RMB 99 现货
Potassium bromide 光谱纯SP 25g RMB 121 Consulting service
Potassium bromide 99.95% metals basis,无水级,粉末 25g RMB 121 Consulting service
Potassium bromide ACS 500g RMB 99 Consulting service
Potassium bromide 分析标准品,99.94% 5g RMB 88 Consulting service
Potassium bromide 99.95% metals basis,无水级,粉末 100g RMB 429 Consulting service
Potassium bromide 99.99% metals basis 10g RMB 121 Consulting service
Potassium bromide 99.99% metals basis 50g RMB 539 Consulting service
Potassium bromide FT-IR grade, ≥99.5% 25g RMB 649 Consulting service
Potassium bromide FT-IR grade, ≥99.5% 100g RMB 1738 Consulting service
Potassium bromide 光谱纯SP 100g RMB 385 Consulting service
Potassium bromide 99.999% metals basis 10g RMB 649 Consulting service
Potassium bromide 99.999% metals basis 50g RMB 2739 Consulting service
Character:
无色结晶或白色粉末,溶于水和甘油,微溶于乙醇和乙醚,稍有吸湿性。有强烈咸味,微苦。见光色变黄。水溶液呈中性。有刺激性。溶解度:: 650 g/L 水(20°C), 1020 g/L水(100°C),1.42 g/L 乙醇 (25°C) ,217 g/L 甘油。
密度:2.75
熔点:730℃
沸点:1435℃
Quality Standard:
GBT649-77
项目ltem                               分析纯        化学纯
含量(KBr)Assay,%                      ≥99.0          98.0
水溶液反应Water solution reaction       合格          合格
澄清度试验Clarity                       合格          合格
水不溶物lnsoluble matter in water,%   ≤0.005         0.01
氯化物(Cl)Chloride,%                  ≤0.2           0.5
溴酸盐(BrO3)Bromate,%                 ≤0.001         0.003
碘化物(I)lodide,%                     ≤0.005         0.01
硫酸盐(SO4)Sulfate,%                  ≤0.002         0.005
氮化合物(N)Nitrogen compounds,%       ≤0.001         0.002
钠(Na)Sodium,%                        ≤0.02          0.05
镁(Mg)Magnesium,%                     ≤0.0005        0.002
钙(Ca)Calcium,%                       ≤0.002         0.005
钡(Ba)Barium,%                        ≤0.002         0.005
铁(Fe)lron,%                          ≤0.0002        0.0005
重金属(以Pb计)Heavy metals,%          ≤0.0002        0.0005


项目名称                                            ACS Grade
含量(KBr)Assay                                       ≥99.0%
pH(5%溶液,25.0℃)pH of a 5% solution at 25.0℃        5.0-8.8
水不溶物Insoluble matter                             ≤0.005%
溴酸盐(BrO3)Bromate                                  ≤0.001%
碘酸盐(IO3)Iodate                                    ≤0.001%
氯化物(Cl)Chloride(Cl)                               ≤0.2%
碘化物(I)Iodide                                      ≤0.001%
硫酸盐(SO4)Sulfate                                   ≤0.005%
钡(Ba)Barium                                         ≤0.002%
重金属(以Pb计)Heavy metals                           ≤5ppm
铁(Fe)Iron                                           ≤5ppm
钙(Ca)Calcium                                        ≤0.002%
镁(Mg)Magnesium                                      ≤0.001%
钠(Na)Sodium                                         ≤0.02%


品级Grade                              光谱纯SP  
                                     (optical grade, ≥99.9%)
外观Appearance                         白色粉末或结晶
纯度Purity                             ≥99.9% Based On Trace Metals Analysis(ICP and AA Combined)
ICP: Confirms Potassium Component
溴Br                                   66.5 - 67.8 % (Titration by AgNO3 )
痕量金属分析Trace Metal Analysis       ≤1000.0 ppm by ICP Atomic emission
(Ba,Ca,Mn,Pb )
痕量金属分析Trace Metal Analysis       ≤1000.0 ppm Atomic Absorption
(Na,Ru)

99.999% metals basis:


外观Appearance                         白色粉末或结晶
ICP:                                   Confirms Potassium Component
纯度Purity                             99.999% Based On Trace Metals Analysis
溴Br                                   66.1 - 68.1 % (Titration by AgNO3 )
痕量金属分析Trace Metal Analysis       ≤20.0 ppm by ICP
(Na、Rb、Cs、Zn、B、Al、Pb、Mn)

99.99% metals basis:


外观Appearance                         白色粉末或结晶
ICP:                                   Confirms Potassium Component
纯度Purity                             99.99% Based On Trace Metals Analysis
溴Br                                   66.1 - 68.1 % (Titration by AgNO3 )
痕量金属分析Trace Metal Analysis       ≤200.0 ppm by ICP and AA
(Na、Rb、Cs、Zn、B、Al、Pb、Mn)


99.95% metals basis,无水级,粉末:


外观Appearance                         白色粉末
ICP:                                   Confirms Potassium Component
纯度Purity                             99.95% Based On Trace Metals Analysis
溴Br                                   66.1 - 68.1 % (Titration by AgNO3 )
痕量金属分析Trace Metal Analysis       ≤600.0 ppm by ICP and AA
(Na、Rb、Cs、Zn、B、Al、Pb、Mn)


品级Grade                              FT-IR级  
                                     (FT-IR grade, ≥99.5%)
外观Appearance                         白色粉末或结晶
红外光谱Infrared spectrum              Pass
纯度Purity                             99.5% Based On Trace Metals Analysis
痕量金属分析Trace Metal Analysis       ≤10000 ppm by ICP and AA
(Na、Rb、Ca、Al、Tl、Mn)  

Storage:
易吸潮,密封避光保存
点滴分析测定铜及银。极谱分析铟、镉和砷。显影剂。农药分析。
99.95%和99.99%级别用于分子生物学中去除外围膜蛋白。
FT-IR级用于FT-IR 光谱仪
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