共找到 9 条与 偶氮胂Ⅲ[2,7-双(2-苯砷酸-1-偶氮)-1,8-二羟基萘-3,6-二磺酸] 相关的标准,共 1

本标准规定了化学试剂偶氮胂Ⅲ的要求、试验方法、检验规则、包装及标志

Chemical reagent.Arsenazo Ⅲ

Chemical Reagent Arsenazo III [2,7-bis(2-phenylarsenic acid-1-azo)-1,8-dihydroxynaphthalene-3,6-disulfonic acid]

SODIUM CHLORIDE. DETERMINATION OF FLUORIDE CONTENT. PHOTOMETRIC METHOD WITH SODIUM 2-(SULFOPHENYLAZO)-1,8 DIHYDROXYNAPHTHALENE-3,6 DISULFONATE (SPADNS).

2-(对磺苯偶氮)-1,8-二羟基-3,6-萘二磺酸钠(SPADNS)与锆离子形成红色锆染料。在酸性溶液中,氟离子与红色锆染料反应,定量置换出染料中的锆,使染料褪色,褪色的程度与氟离子浓度在一定范围内成线性关系。在分光光度计上,于600 nm波长处测量吸光度。计算氟化物(以F-计)质量浓度

Water for drinking determination of fluoride 2-(parasulfophenylazo)-1,8-dihydroxy-3,6-naphthalene disulfonic acid, zirconium salt spectrophotometric method

Xylylazo violet I (sodium 2-(2-hydroxy-3-(2,4-xylylcarbamoyl)-1-naphthylazo)-1-phenol-4-sulfonate)

この規格は,試薬として用いる2-ヒドロキシート(2-ヒドロキシ-4-スルホ-1-ナフチルアゾト3-ナフトエ酸()(以下,HSNNという。)について規定する。注()略名:HSNN

2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic acid

Xylylazo violet II (2-(2-hydroxy-3-(2,4-xylylcarbamoyl)-1-naphthylazo)-phenol)

Indicators. Methyl oranger (sodiumparadimethylaminoaz - obenzen esulphate)

(a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified generically as 2,7-Naphthalenedisulfonic

Protection of Environment. Part721:Significant new uses of chemical substances. Section721.5262:2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-6-[substituted] amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(1-sulfo-2-naphthalenyl)azo]-, trisodium salt (gener




Copyright ©2007-2026 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号
页面更新时间: 2026-06-10 02:20