茜素黄R
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别名：
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对硝基苯偶氮水杨酸;媒介橙1;5-(4-硝基苯基偶氮)水杨酸；5-(4-Nitrophenylazo)salicylic acid C.I. 14030
产品介绍
MSDS与安全信息
质检证书(CoA)
相关产品
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- 棕黄色结晶或粉末。能溶于水，呈棕黄色溶液。
熔点:250℃
质量标准
项目ltem 分析纯
(AR)
含量Assay≥ 70.0% (柱层分析-分光光度法)
pH变色域Visnal transition interval 10.0(黄)-12.0(红)
水溶解试验Solubility in water合格
灼烧残渣(以硫酸盐计)Ignition residue,% 20-25
98%：
外观Appearance橙色至棕色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity≥98.0% (HPLC area%)
水溶解试验solubility in hot Water 合格
水溶解试验solubility in hot EtOH合格
干燥损失Drying loss ≤10.0 %
灼烧残渣Ignition residue(Sulfate) 20.0 - 30.0 %(after drying)
pH变色域Transition interval(pH) (红黄色)10.0 - 12.0(黄红色)
吸光度Absorbance（以干基计）≤0.320(5 mg/L, pH 9.6, 375.0 nm）
贮存：密封干燥保存。
用途：酸碱指示剂，pH值10.0（黄色）～12.0（红色）。金属着色剂。常用1%钠盐作指示剂。
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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
