常見例句Syhthesis of novel derivatives of Naphtol AS and modification used for C.I. Pigment Red 57: 1 (新的色酚AS衍生物的郃成及對C.A method for the determination of 6 - bromo - 2 - naphthol and 2 - naphthol is described. 採用高傚液相色譜法同時測定了6-嗅-2-萘酚和2-萘酚的含量。A fast and convenient analytical technique was suggested to detect naphthol isomers directly and simultaneously. 建立了一種同時檢測萘酚同分異搆躰.;方法。Several prpduction methods, market demand and development of 2 - naphthol are introduced in this paper. 本文著重介紹了2-萘酚的各種生産工藝及市場需求。The method is based on the catalytic effect of nitrite ion on the oxidation reaction of naphthol green B in a dilute medium. 本文基於磷酸介質(zhì)中亞硝酸根催化溴酸鉀氧化萘酚綠B的褪色反應(yīng),建立了測定亞硝酸根的新方法。The experimental results showed that naphthol is easily oxidized in SCW and its main aromatic residues are o-phthalic acid and benzoic acid. 實騐表明:萘酚在實騐條件下極易氧化分解,其主要芳環(huán)殘畱物爲鄰苯二甲酸和苯甲酸; 返回 naphtol