Product Name：vat orange
Feature：
vat orange 2#/7#/9#/11#/15#
Chemical PropertiesOrange-red powder. Insoluble in acetone, ethanol, chloroform, toluene, slightly soluble in pyridine, o-chlorophenol. In concentrated sulfuric acid was dark red light yellow liquid in alkaline hydrosulfite also in olive colored (with red fluorescence) in acidic solution was red brown.
Use
Brilliant Orange GR reduction for cotton dyeing and printing cotton, also suitable for dyeing polyvinyl alcohol, nylon and polyester, cotton fabric dimensions. Also used in the manufacture of organic pigments.
Use
Dark-colored printing for cotton
Production methods
To 1,4,5,8 - naphthalene carboxylic acid and o-phenylenediamine 4 as raw materials, condensation in acetic acid medium, after separation of the product obtained after purification. .
Cis-isomer and trans isomer mixture shall restore the Red GG (CIVat Red 14), After separation, the cis-isomer shall restore the Claret 2R (CIVat Red 15); trans-isomer shall restore the Orange GR (CIVat Orange 7).
In the reactor by adding 1 naphthalene 4 acid, o-phenylenediamine were 0.9 and 7.5 were acetic acid, heated to 115 ℃, 5h back after steaming to acetic acid. Then add hot water, boiled at 90 ℃ 30min, filter, filter cake with hot water to neutral. At below 100 ℃ drying, reducing red GG. To the reduction of red GG obtained in ethanol solution of sodium hydroxide for two separate heating, by reducing, respectively, and restore the Claret Brilliant Orange GR 2R.
Packing:25kgs/pp bag or at buyer's option
Payment:50% tt in advance and 50% paid by lc
Delivery time：two weeks after we recieved the deposit(for 1fcl)
Supply:1000mt/month
MOQ:1mt
