溴甲酚绿
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别名：
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溴甲酚蓝，四溴间甲酚磺酚酞 Bromocresol blue Bromocresol green sodium salt 3,3’,5,5’-Tetrabromo-m-cresosulfonaphth
产品介绍
MSDS与安全信息
质检证书(CoA)
相关产品
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- 白色到微黄色结晶或浅褐色粉末。易溶于醇及稀碱液，微溶于水，不溶于醚及苯；其钠盐能溶于水。内酯型为无色，醌型为砖红色无定型水合物。各文献报告色泽不一。熔点225℃(内酯型)。
密度：0.79
质量标准
项目Item 分析纯
(AR)
变色域Visual transition interval 3.8(黄绿)～5.4(蓝)
最大吸收波长(nm)Wave length of
max absorbance
λ1 (pH 3.8)440-445
λ2 (pH 5.4)615-618
质量吸收系数Absorbance,L/cm·g
α1(λ1,pH 3.8,干样) 24-28
α2(λ2,pH 5.4,干样) 53-58
乙醇溶解试验Solubility in ethanol合格
干燥失重Drying loss,%≤3.0
灼烧残渣(以硫酸盐计)Ignition residue,% ≤0.25
ACS级
项目名称 Item SignACS Grade
澄清度Claroty of solutionPasses test
变色域Visual transition interval pH3.8(yellow)to pH5.4(blue)
贮存：密封保存。
用途：酸碱指示剂。比色测定酸碱度时常用其钠盐。
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Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
