SJZ Chenghui chemical co ltd O Aminobenzoic Acid,Sulfanilic Acid and Alpha Naphthylamine,Diazo Sulfanilic Acid

diazotization of sulfanilic acid

حصة ل:  
    الدفع نوع: L/C,T/T,D/P
    Incoterm: FOB,CFR,CIF
    أدني كمية الطلب: 5 Ton
    موعد التسليم: 10 أيام

معلومات أساسية

علامة تجاريةchenghui

Additional Info

تفاصيل التعبئة والتغليف25kgs/500kgs/750kgs

إنتاجية20000 mts per year

نقلOcean

مكان المنشأChina

تفاصيل التجارة القدرة علي التوريد20000 mts

الشهاداتISO 9002

الدفع نوعL/C,T/T,D/P

IncotermFOB,CFR,CIF

موعد التسليم10 أيام

وصف المنتج

Methods of Manufacturing
By heating aniline with weak fuming sulfuric acid and pouring the reaction product into water. /Monohydrate/Readily prepared from aniline and sulfuric acid.
Equimolar amounts of aniline and sulfuric acid are reacted in a lead-lined reactor. The reaction mass is spread on trays and baked in an oven at 190 - 220 deg C, the water of the reaction being removed continuously. The process is complete if a sample dissolves clearly in a dilute alkaline solution and has practically no smell of aniline. The crude product is dissolved as a sodium salt in water that has been rendered alkaline with sodium carbonate solution; traces of aniline are removed by blowing with steam. The solution is clarified by filtration and can then be processed further immediately. The baking operation can be carried out in vacuo, which facilitates the removal of the water of the reaction

sulfuric acid

Specs: Appearance:Grey-white powder

Purity: 99% min

Content 80% Min (wet) 96% Min (dry)

Insoluble 0.1% Max (wet) 0.2% Max (dry)

Para Cresidine 0.02% Max (wet) 0.02% Max (dry)

sulfanilic acid

Uses:

1. It is one important dyes intermediates, it can be used in Acid orange ,Acid light yellow 2G,Acid intermediary yellowish brown 4G,Acid intermediary dark yellow GG, Direct yellow GR,Reactive yellow K-RN, Brilliant red K-2G, datish red K-DG and blue K-3R, etc.

2. It also can be used in production of dyes Whitening agent, such as solute salt B, optical brightener BG, optical brightener BBU, dyeing proof salt H, etc.

3. It is also used in agriculture pesticide to proof wheat rust.

4. It is also one ideal intermediary in spices, food pigment, medicine, building materials, etc.

We have been exporting this item for more than 15 years, our main market is Europe and South America, also some quantity in Asia market.

sulfuric acid





صورة المنتج
  • diazotization of sulfanilic acid
  • diazotization of sulfanilic acid
  • diazotization of sulfanilic acid
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