C.I. 直接黄6:1 (C.I. 40006) 生产工艺 CAS号 [1325-42-4]
CAS名: Benzenesulfonic acid, 2-methyl-5-nitro-, alk. Cond. Products, oxidized.
用途; 纸品染色等。反应类别: 缩合,氧化。
生产工艺参考文献: 按本人手头资料整理如下。
BIOS 1548, 145.(=胶卷PB 85593)Direct Yellow R extra.
(LeVerkusen). 英国人译自德文Direktgelb
R ex. 抄录如下。
Condensation in caustic soda of
4-nitro-toluene-2-sulphonic acid, followed by oxidation with hypochlorite.
The charge is 150 kg. nitrite and the condensation is
as described for Curcumine S (page
169). The condensation temperature is maintained four hours at 84-850C. The completed and cooled condensation is
blown into 3,000 l. water and 700 l. HCl 19.50Be’, well stirred and
then brought to a volume of 8,000 l. The
batch, showing an alkaline reaction, is warmed to 370C., and 600 l.
hypochlorite solution, with an available Chlorine content of 135 g. per liter,
run in. The temperature rises to 400C. After about 1/2 – 3/4 hour, the reaction with Acetic acid on starch iodide paper has disappeared.
If the shade has not been reached on comparing a dilute solution against
standard, a further 80 l. hypochlorite solution are added. The product is filtered as soon as standard
shade has been reached.
Dry in vacuo at 950C. and standardize with
salt.
Yield =
660 kg. dry = 915 kg. standard. = 6.1 times the
charge in kg. nitrite of 4-nitro-toluene-2-sulphonic acid.
PB 25625, 847. Method for producing “Papiergelb F” highly
conc. C.I.直接黄6:1 德文生产工艺。1935年5月。1美元。如下。
美国人介绍:”Diaminechtgelb A” is oxidized by means of hypochlorite
solution. In German. 未抄录。
本胶卷国内有进口,上海图书馆收藏编号是F-
108.
抄注: 原版Colour Index 介绍,C.I. 直接黄6:1其商品有: Chloraminbraungelb
GG; Direktgelb R ex; Papiergelb F kochkz
C.I. 直接黄11其商品有:Curcumine
S; Diaminechtgelb A.
因为商品使用对象不同,所以有不同商品名称。当然它的组分会有所不同,也就是配方有不同。如果读者感兴趣请看德文的品种卡片,它含商品名称,配方等数据等,具体请见《书评 - 4》.
如,Reel No. 114 =PB
74767 – An à Br. Reel No. 115 =PB
74706 – Br à Ch. Reel No 116=PB
74772 – Ch à Co. 等。其中胶卷号(Reel No)是有序的,但PB号是无序的!所以至今无人利用它,当然一些商品名也就无法知道了。
过去的资料(PB报告)已经成为历史,不再多写了!
随想: 谢谢读者的提问,说明资料还有点用,这也就是我继续工作的动力。
能力有限,算是养老吧。欢迎读者的提问,我是不会收取任何费用的!
加注:
无锡日报2017年9月23日报导,9.23 – 24日是《第二届江苏志愿服务展示交流会》,今天上午去了,参加的有几所大学,接触了一些学生,看来参加无门(我应该是他们的服务对象),我是多此一举吧!
陈忠源 2017年9月24日星期日 于
无锡 明辉国际。