Keywords

• Hot Sale 3441-14-3
• high quality 3441-14-3
• Direct Red 23 factory sells

Quick Details

• ProName: Hot Sale 3441-14-3 high quality Direct...
• CasNo: 3441-14-3
• Molecular Formula: C35H28N7NaO10S2
• Appearance: purplish red powder
• Application: Mainly used for cotton, viscose, hemp ...
• DeliveryTime: Stocks
• PackAge: according to customers' requirements
• Port: Any port
• ProductionCapacity: 100 Metric Ton/Day
• Purity: 99%
• Storage: Room Temprature
• Transportation: By air(EMS or EUB or FedEx or TNT ect....
• LimitNum: 1 Gram

Superiority

  Hot Sale 3441-14-3 high quality Direct Red 23  factory sells

Chemical properties purplish red powder. The water solubility is medium, and it is bright red when dissolved in water. The aqueous solution is added with dilute sulfuric acid to turn light blue, and concentrated hydrochloric acid to produce wine red precipitate, and concentrated alkali to turn red, light, orange and brown. Slightly soluble in ethanol is orange, insoluble in acetone. It is red to magenta in concentrated sulfuric acid, and turns to brown-orange after dilution; orange-yellow precipitate is produced in concentrated nitric acid; it is insoluble in concentrated lye; it is red in concentrated ammonia water. When dyeing, the color light of copper ions becomes dark, and the color light of iron ions does not change.

production method

1. Aniline and p-aminoacetylbenzene are diazotized, coupled with scarlet acid, and then salted out, filtered and dried. Raw material consumption (kg/t) aniline 55 scarlet acid (100%) 330 paracetamilide (100%) 95 hydrochloric acid (31%) 380 sodium nitrite (100%) 110 soda ash (industrial) 170 refined salt 210 sodium hydroxide (100%) 85

2. using paracetamilide, scarlet acid and bis-j acid (5,5 '-dihydroxy -7,7'-disulfonic acid -2,2 '-dinaphthylamine) as raw materials, paracetamilide is first diazotized, then coupled with the mixture of scarlet acid and bis-j acid in the presence of soda ash to obtain the product, which is salted out, filtered..

3. using scarlet acid, aniline and paracetamidine as raw materials, aniline and paracetamidine are first diazotized, then coupled with scarlet acid to obtain the product, which is salted out, filtered, dried and crushed to obtain the finished product..

P> add clear water and paracetamidine to the diazo pot, stir and cool to about 0 ℃, add aniline and hydrochloric acid, add sodium nitrite solution under stirring, keep the reaction solution at 0-5 ℃, and add a small amount of hydrochloric acid when the reaction is completely clear and clear diazonium salt solution.

add clear water, scarlet acid, soda ash and 30% liquid alkali into the coupling pot, and stir to dissolve them all (water can be added appropriately to ensure scarlet acid is dissolved). Cool to 4-6 ℃, add 1/2 amount of diazonium salt solution, add salt, then slowly add another 1/2 amount of diazonium salt solution, control the temperature 5-10 ℃,pH = 7-7.5, until the reaction is complete (spot test with H acid). Then raise the temperature to 60 ℃, add salt to salt out, and raise the temperature to 70 ℃, add water to dilute, filter while hot, dry and crush to obtain the finished product.

Details

Established in 2010, located in Hangzhou Qinglan science park, lingruichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals tovarious industries.n our R&D centre. we have a staff of skilled and experienced research chemists. This has enabled us to meet the special reauirements of our customers and it has enabled us to provide quality products at competitive prices.

1. How can we guarantee quality

Always a pre-production sample before mass production;

Always final Inspection before shipment; 

2.What can you buy from us

Plant Extracts,Cosmetics Raw Materials,Vitamin Raw Materials,Pharmaceutical Raw Materials and Intermediates

3. Why should you buy from us not from other suppliers

Our company mainly devoted in producing pharmacetical intermediates , Vitamins , and health supplement , the quality and technical content can reach the advance level in China .Our products are sold well in China as well as in more than 20 countries.

Lingrui's credo is committed to your reliable business partner,reliable quality, competitive prices and superior service, lf you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future !