酸性大红G与 酸性大红GR是不是同一种东西

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2025-04-04 00:51:19
推荐回答(1个)
回答1:

不是一种东西!

名称 酸性红G;酸性大红G;偶氮萤光桃红;偶氮焰红;5-(乙酰基氨基)-4-羟基-3(苯基偶氮)-2,7-萘二磺酸二钠盐;Acid scarlet G;Azophloxine;2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-4-hydroxy-3(phenylazo)-, disodium salt;C.I. Acid red 1;1379 red;7-naphthalenedisulfonic acid, 5-(acetylamino)-4-hydroxy-3-(phenylazo)- disod;acetyl red g;acetyl red j;acetyl rose 2gl;acid bright red;acid brilliant red
CAS:3734-67-6
分子式:C18H13N3Na2O8S2
分子质量:509.430
中文名称:酸性红G;酸性大红G;偶氮萤光桃红;偶氮焰红;5-(乙酰基氨基)-4-羟基-3(苯基偶氮)-2,7-萘二磺酸二钠盐
性状描述:红色粉末,溶于水为大红色溶液,微溶于酒精和溶纤素,不溶于其他有机溶剂。遇浓硫酸呈蓝光红色,将其稀释后呈较黄的红色;遇浓硝酸呈桔红色溶液,后转橙色;遇浓盐酸生成红色沉淀,稀释后即溶解。其水溶液加浓盐酸呈红色;加氢氧化钠液呈桔棕色。染色时遇铜离子使色泽带蓝光而暗;遇铁离子色泽带蓝光而浅。匀染性好。
生产方法:苯胺重氮化后,与乙酰H酸偶合,盐析而得。
H酸(100%) 400 硫酸(100%) 172 苯胺(99%) 114 元明粉 273 乙酐 180 精盐 2000 亚硝酸钠(98%) 90 碳酸钠 550 盐酸(31%) 163
用途:主要用于羊毛织物的染色。拼混性强,适宜于染浅,中色,可以直接在毛织物;锦纶和蚕丝织物上印花。还可以用来制造色淀以及化妆品、纸张、肥皂、和木材等的着色制造墨水用。其钡盐可作用有机颜料,还用于塑料和医药。
结构式:http://chemyq.com/xz/img/img3/3734-67-6.gif

来自:http://chemyq.com/xz/xz12/114385xioyh.htm

名称 酸性大红GR;酸性大红105;酸性朱红;酸性大红GB;C.1.Acid Red 73(27290);Brilliant Crocein MOO;Aclian Cro-ceine MOO (拜耳);BrilliantScarlet R(住友);Eriosin Red GR(汽巴-嘉基)
分子式:C22H14N4Na2O7S2
分子量:556.490
CAS号:5413-75-2
性质:黄光红色粉末。溶于水呈红色溶液,能溶于酒精和溶纤素,难溶于丙酮,不溶于其他有机溶剂。遇浓硫酸呈红紫色,稀释后生成红棕色沉淀;遇浓硝酸呈蓝色,反变成橄榄棕色转橙色。其水溶液加浓盐酸生成暗红棕色沉淀,加氢氧化钠液生成深棕色沉淀。染色时遇铜、铁离子色均较暗。拔染性好。
制备方法:由对氨基偶氮苯重氮化,再与G盐偶合,盐析而得。1.重氮化 将240kg对氨基偶氮苯盐酸盐加入1200L水中,加30%盐酸200kg。搅拌4h,冷至8℃,在3h内从液面下加入30%亚硝酸钠溶液(折100%80公斤)温度不超过15℃,以亚硝酸微过量为终点,保持1h,加冰冷至5℃以下,过滤,滤渣弃去,滤液按体积28%加盐,搅拌20min,过滤,滤饼以水和冰稀释到3000L,温度为0-5℃。2.偶合 在桶中放水1500L,纯碱160kg,搅拌,加入G盐270kg,使其全溶。冷至5℃,3h内加入上述重氮液,温度不超过12℃。加毕,测pH应为9,G盐过量。搅拌6h后,升温至60℃,按体积9%加盐,过滤,干燥,得原染料680kg。标准化后得成品染料1000kg。G盐(100%) 280 亚硝酸钠(98%) 82对氨基偶氮苯(100%) 248 盐酸(31%) 196碳酸钠(98%) 157 元明粉 160
用途:用于毛丝织物的染色,也用作纸张和皮革的染色。还可用于塑料、木材、香料、医药、电化铝和水泥的着色。还可用于制造墨水。其重金属盐可作颜料。
结构式:http://chemyq.com/xz/img/img5/5413-75-2.gif

来自:http://chemyq.com/xz/xz1/4586tstpb.htm

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