Quick Detail
Place of Origin
HS-CODE
32-
Package & Delivery Lead Time
Detailed Description
Product Name：acid yellow
Feature：
acid yellow 36#/27#/199#/49#/99#/199#/59#/17#/128#/
PackingChemical Properties
Yellow powder, soluble in water, adding 10% sulfuric acid solution or sodium hydroxide, the color unchanged. Soluble in ethanol, yellow. Soluble in acetone, glycol ether. Slightly soluble in benzene, insoluble in other organic solvents. Yellow in concentrated sulfuric acid, diluted unchanged; in concentrated nitric acid in yellow. Staining encountered more red copper color; encounter dark iron color.
Use
Acid Yellow G is mainly used for wool, silk and fabric dyeing and direct printing, discharge and levelness of both good. Usually in the acid dye bath dyeing, also used for dyes beige, camel, gray and other light to medium color. Can also be used for dyeing of nylon. For wool and other fibers bath dyeing, nylon can be dyed, silk serious stain, a little staining acetate, cellulose fiber without staining. Acid Yellow G can also be used for paper, leather, paint, medicine, cosmetics, color, paint color lakes can also be made.
Use
Mainly used for wool, silk, nylon fabric dyeing, and can be printed directly on the wool fabric
Use
For painting, baking finish, celluloid, polyvinyl chloride, glass coloring
Use
Paint, rubber, glass, celluloid, aluminum foil and amino paint colorant.
Use
Mainly used for wool and silk fabrics dyed in the acid bath, acid bath can also be dyed nylon, can also be dyed leather. Can also be made of color lakes. In the paper for paint and surface color, can be used to paint, pharmaceutical, cosmetics and for polyvinyl chloride and polyethylene and other plastic coatings.
Production methods
Aniline diazotization, and 1 - (sulfonic acid phenyl) -3 - methyl -5 - Pyrazolidone coupling, salt derived. 1. Diazotization in 560L water plus 30% hydrochloric acid 163kg, 100% of the aniline 55.8kg, stirring solution, with ice cooling to 0 ℃, 30% from the surface to add sodium nitrite (equivalent to 100% 41.4kg ), Diazo temperature 0-2 ℃, time of 30min, then Congo red test paper blue, potassium iodide starch test paper was micro blue. Finally adjust the volume to 1100L. 2. Coupled pan with water 900L, heated to 40 ℃, add soda ash 60kg, stirring all dissolved. Then add 1 - (sulfonic acid phenyl) -3 - methyl -5 - Pyrazolidone 154.2kg, dissolved and then adding 10% soda solution (equivalent to 100% 48kg). Ice and water to adjust the volume to 2400L, temperature 2-3 ℃. Sieve the liquid into the pot for diazo coupling. Discharge time for 30-40min. Throughout the coupling process, maintaining pH8-8.4, temperature of not more than 5 ℃. Coupled Bi, 1 - (sulfonic acid phenyl) -3 - methyl -5 - Pyrazolidone be excessive. Continue stirring 2h. Temperature to 80 ℃, 20-20% by volume calculated by adding the amount of salt, for salt, stirring to cool to below 45 ℃ filter. Dried at 80 ℃. Was 100% 460kg. Material consumption (kg / t) 1 - (sulfonic phenyl) -3 - methyl -5 - Pyrazolidone aniline 399 (99%) 149 Sodium hydroxide (100%) 112 Sodium carbonate 87 sodium nitrite ( 98%) 145 HCl (31%) 546 salt 2700
Production methods
Aniline and 3 - methyl -1 - (p-sulfo-phenyl) -5 - Pyrazolidone [3-methyl-1-(p-sulfophenyl)-5-pyrazolone] as raw materials, aniline diazotization and The latter was the product of coupling by salt precipitation, filtration, drying, grinding finished. .
Diazo added 560L of water in the pot, 163kg hydrochloric acid (30%) and 55.8kg aniline (100%), stirring solution, with ice cooling to 0 ℃, then added 30% sodium nitrite solution (containing NaNO2 41.4kg), to maintain 0 -2 ℃, reaction 30min. Diluted with water to 1100L.
In coupling the pot by adding water 900L, Soda 60kg, heated to dissolve (about 60 ℃). Then add 3 - methyl -1 - (p-sulfo-phenyl) -5 - Pyrazolidone 154.2kg, dissolved, supplement of 10% sodium carbonate solution (containing sodium carbonate 48kg). Ice down to 2-3 ℃, in 30-40min to add the diazo solution. Been raised to continue stirring 2h, then heated to 80 ℃, adding salt to salt. Cooled to below 45 ℃, filtration and drying product of about 460kg. :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
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