SPADNS釷鋯試劑 基本信息:
Cas號(hào) | 分子式 | 分子量 | 別名 |
23647-14-5 | C16H9N2Na3O11S3 | 570.41 | / |
SPADNS釷鋯試劑 說(shuō)明介紹:
性狀 微溶于水,易溶于氨水,易溶于有機(jī)溶劑。 質(zhì)量標(biāo)準(zhǔn)
項(xiàng)目 指示劑級(jí)
(indicator)
外觀Appearance 類白色至淺灰紅色粉末
紅外光譜鑒定Infrared spectrometry 和對(duì)照品匹配
螯合滴定靈敏性試驗(yàn)Sensitiveness 合格
(Mg, Ca, Sr and Ba)
98%:外觀Appearance 類白色至淺灰紅色粉末
紅外光譜鑒定Infrared spectrometry 和對(duì)照品匹配
純度Purity(以干基計(jì)) ≥98.0% (中和滴定)
熔點(diǎn)Melting point 181-189 °C (dec.)
干燥損失Loss on drying <10 %
硫酸鹽灰分Sulfated ash <0.5 %
游離free cresolphthalein: < 4%
螯合滴定靈敏性試驗(yàn)Sensitiveness 合格
UV-VISIBLE SPECTRUM 0.01G/L, 0.1N NAOH
E(575 +/- 3 NM)≤50,000
用途 螯合指示劑
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17249-80-8 "3-氯噻吩/3-Chlorothiophene
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1641-09-4 "3-氰基噻吩/3-Cyanothiophene
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90069-81-1 "3,4-二氨基噻吩二鹽酸鹽/3,4-Diaminothiophene Dihydrochloride
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4805-22-5 "5,5'-二溴-2,2'-聯(lián)噻吩/5,5'-Dibromo-2,2'-bithiophene
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502764-54-7 "3,5-二溴二噻吩[3,2-b:2',3'-d]噻吩/3,5-Dibromodithieno[3,2-b:2',3'-d]thiophene
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