甲基红钠盐|845-10-3 |酸性红2|艾科试剂

货号	品名	产品规格	包装	单价(RMB)	促销价(RMB)	可用库存	备注
132814	甲基红钠盐	ACS reagent, 95 %	100g	586.00	527.4	>10	s-d
132813	甲基红钠盐	ACS reagent, 95 %	25g	155.00	139.5	>10	s-d
132812	甲基红钠盐	IND	500g	875.00	787.5	>10	s-d
132811	甲基红钠盐	IND	100g	315.00	283.5	>10	s-d
132810	甲基红钠盐	IND	25g	98.00	88.2	>10	s-d

性状

橙红色结晶性粉末。溶于水和乙醇。最大吸收波长437nm。

质量标准

品级Grade                               指示剂级（IND)
                                    (indicator (pH 4.2-6.2))
外观Appearance                          红棕色粉末
红外光谱鉴别Infrared spectrometry       Conforms
水溶解试验solubility in water           clear(0.1% in water)
pH变色域visual transition interval      pH 4.2 (red) to pH 6.2 (yellow)

品级Grade                                ACS级
                                     (ACS reagent, 95 %)
外观Appearance                          红棕色粉末
红外光谱鉴别Infrared spectrometry       Conforms
染料含量Dye content,                    95%
水溶解试验solubility in water           clear(0.1% in water)
pH变色域visual transition interval      pH 4.2 (red) to pH 6.2 (yellow)
λ                                       430 - 440 nm
                                        c = 0.01 g/l; Water
消光系数Extinction Coefficient          ≥17000
λ                                       256 - 260 nm
消光系数Extinction Coefficient          ≥8000
Visual Transition Interval              pH 4.2  Pink
Visual Transition Interval              pH 5.5  Orange
Visual Transition Interval              pH 6.2  Yellow
pH变色域visual transition interval      pH 4.2 (red) to pH 6.2 (yellow)