SHANDONG ZHISHANG CHEMICAL CO.LTD
Model No.: X-CAS 102-28-3
MP:: 247 °C, 86-88 °C(lit.)
Bp:: 189ºC, 388.9ºC At 760mmHg
Packaging: in 25kg drum
Productivity: 10000kg per month
Place of Origin: Shandong, China (Mainland)
Supply Ability: in stock
Certificate: ISO CE
HS Code: 2921519090
Production method: 1, m-phenylenediamine acylated from phenylenediamine derived. Add water and m-phenylenediamine to the reaction kettle to dissolve. Then add 30% hydrochloric acid, stirred for half an hour, then add acetic acid, the reaction temperature was controlled at 40 ℃, incubated for 1h, add salt salting, filtration. After the neutralization of amino acetanilide. Acylation is also possible using acetic anhydride as the starting material. Raw materials consumption fixed amount of phenylenediamine 1021kg / t, acetic anhydride 1013kg / t, hydrochloric acid 475kg / t.
2. Inter nitroanilide method 10g of nitroacetanilide and 5g of iron powder were mixed uniformly in a mortar and put into a 500ml beaker containing 200ml of boiling water. A few drops of acetic acid acidified mixture was added and incubated for 1h. Then add ammonia to neutralize Congo red test paper. Boil, hot filtered, the filtrate on a water bath and evaporated to a paste. Friction wall or into the seed crystal slurry, available close to the theoretical amount of product, the melting point of 87 ~ 89 ℃.Application:
Dye intermediates. It is mainly used to prepare reactive dyes such as yellow k-rn and disperse dyes.
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