C.I. 酸性红42 (C.I. 17070) 生产工艺  CAS号 [6245-60-9]

CAS名: 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-5-[[2-(phenylsulfonyl)phenyl]azo]-,monosodium salt.

发明者: E. Fischer 1932 年。复配EC 号: 911-820-1.

生产工艺文献:

BIOS 1548,47-8.(=胶卷 PB 85593)  Anthralan Red B.(Leverkusen). 英国人译自德文。抄录如下。

反应式: 本人有加注。本生产工艺未注明译自哪个PB报告？
 

o-Aminodiphenylsulphone  à  Gamma Acid.

o-Aminodiphenylsulfone (M.W. 223), = 75 kg. NaNO₂ , is stirred overnight in 225 l. Hydrochloric Acid 19.5⁰Be’. Next morning cool with 1,500 kg. ice to 0⁰C. and diazotize with 84 kg. Sodium Nitrite as 30% solution. Volume 3,500-4,000 l. Temperature 5-10⁰C. The Nitrite excess is removed with Sulphamic Acid.

Gamma Acid, = 82.5 kg. NaNO₂ , is dissolved in the coupling vat in 9,000 l. water with about 45 l. Caustic Soda as 40% solution. The weakly alkaline solution is then made congo-violet acid with about 100 l. Hydrochloric Acid 19.5⁰Be’.

The diazo is run down during ¹/₂ hour. Temperature 17-18⁰C. The coupling is finished in 3 hours and is then filtered. The paste is stirred in a solution of 700 kg. salt in 7,000 l. water for 2 hours, filtered and dried in vacuum at 95⁰C.

Standardise with salt. Yield = 1,170 kg. Type.

PB 25626, 1187. Anthralanrot B. 德文生产工艺。1940年2月。1美元。未抄录。

美国人说明是: Detailed direction are given for the production of about 2,200 kilograms of a paste of this dye. Chief starting materials are o-aminodiphenylsulfone and gamma acid. In German.

加注：PB 25626, 1188-9. 是2-硝基二苯砜 [31515-43-2] 和 2-氨基二苯砜 [4273-98-7] 的生产工艺。后者是C.I. 冰染重氮组分18的色基。其英国人译文，见BIOS 1149,17-8.

PB 74025, 1098. Anthralanrot B. 德文生产工艺。（是生产工艺摘录文）未抄录。

PB 82232, 64. Anthralanrot B. 德文生产工艺。（同上。） 1946年。 2美元。未抄录。

加注：抄录德文原件目录，是因为本人发现英国人译文有少译，漏译和错译的地方。

    PB 74024. 和 PB 74025. 上海染料所曾复制成书本式的资料，但后来不知道去哪里了。、

陈忠源  2016年12月11日     于 无锡  明辉国际。