...Phthalocyanine is not customarily treated as a lake), (3) Basic dyes insoluble in double salts of tannic acid, phosphoric acid, molybdic acid, tungstic acid, etc., either alone or in combination (triphenylmethane pigments). A representative azo lake is the barium salt of lithol red. In this method, Tobias acid is coupled with β-naphthol to make a sodium salt, which is then heated with an aqueous solution of barium chloride (BaCl 2) to produce barium lake. *Some of the terminology that mentions "lithol red" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…フタロシアニンは習慣上レーキとしては扱わない),(3)タンニン酸,リン酸,モリブデン酸,タングステン酸などの単独または混合した形で塩基性染料を複塩不溶化したもの(トリフェニルメタン系顔料)の3種類がある。アゾレーキの代表としてリソールレッドlithol redのバリウム塩を示す。この製法はトビアス酸をβ‐ナフトールにカップリングしてナトリウム塩をつくり,塩化バリウムBaCl2水溶液と加熱してバリウムレーキとする。… ※「lithol red」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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