-
We detected your language preference as English. Would you like to switch to the English version for a better experience?
Switch to English
Stay here
????? ????????? ?????????? ????? ????? ???-?????????? (????? ??????? ???????)
?????: ??????? ???????
- ???????? ???????:
- ?? ?????? ????? ??? ??? ???-?????????? ??????? ????? ????????: ?? ?????? ????? ??? ?????????? ??? ?????? ???? ???? ??? ?? ????? ?? ???? ??????? ??? ?????? ???? ???? ??? ?? ????. ??? ?? ??????? ????? ?????? ??????? ??????? ?? ??? ????? ??? ?????? ???? ???? ??? ?? ????—?? ?????? ?????? ??? ???? ???????.
- ??? ????? ?? ????? ?? ??? ??????? ??? ??????? ????? ??????. ???? ??? ?????? ????????? ?? ???? ???? ?????.??? ??? ????????? ???? ???? ??? ?? ????? ??? ???? ???? ??????? ??????? ?? ????? ???? ?????: ??? ??? ????? ?????? ?? ?????? ??????? ??????? ?????? ???? ???? ??? ?? ????? ????? ???? ??????? ???????? ?????? ?????? ?? ??? ?????? ??????? ???? ???? ??? ?? ????? ????? ????? ??????? ??????? ??????? ?????? ??? ?????? ??????? ???? ???? ??? ?? ????.
- ??? ?????? ???? ??????? ?? ??????? ???????: ??? ?? ??? ?????? ??? ??? ?????? ????????? ?? ???? ???? ?????.??? ????????? ???? ???? ??? ?? ????—?? ???????? ????? ?? ??????? ?????? ?????. ??????? ?? ?????? ????? ??? ?????? ???? ???? ??? ????????? ???? ???? ??? ?? ????? ?? ???? ???????? ?????? ????? ?????.
- ???? ????? ??? ??????? ??????? ?? ???? ??? ?????? ??? ????????? ???? ???? ??? ?? ????—??? ????? ??? ????? ?????.
- ????????? ????????? ?? ???????:
- ???? ??????? ??????? ????? ?? ???????. ???? ???? ??????? ?? ?? ?????? ????? ???? ????? ?????????? ???????? (?????? ?????? ????) ????? ???? ?????? ???? ???? ??? ?? ????? ????? ????? ???? ??????? ???????? ????????? ???????? ???????? (?????? ???????) ????? ???? ?????? ???? ???? ??? ?? ????? ??? ???? ??????? ?????? ?????? ?????????? ??????? ???????? (???????? ?????? ???????) ??? ????? ????? ??????? ???? ??? ?????? ???? ???? ??? ?? ????.
- ?????? ????? ????????? ??? ?? ????: ??? ??? ???? ????? ?????????? ???????? (?????? ????) ???? ?????? ???? ???? ??? ?? ????? ???? ???? ??????? ???????? ????????? ???????? ???????? (?????? ???????) ?? ?????? ???? ???? ??? ?? ????? ??? ?? ??? ???? ??????? ?????? ????? ??????? (???????) ???????? (?????? ???????) ?? ????? ?????? ???? ???? ??? ?? ????? ????? ?? ???? ???? ??????? ?????? ?????? ?????????? ??????? ???????? (???????? ???????) ????? ????? ???? ?????? ???? ???? ??? ?? ????.
??????: ????? ????? ??????
- ???? ?????:
- ???? ?????? ????????? ??????? ??????? ????? ?????? ?? ???? ??????? ??????? ???? ????? ??????? ???????? ????? ??? ????? (CR5) ???. ????? ??????? ??????? ???? ?????? ??????? ??????? ????? ??????? ????????? ????? ????? ??? ???? ??????? ????? ?????.
- ??? ??? ????? ?? ????? ??? ?????? ?? ????/??? ?? ??????? ????????? ??? ????????? ?????????? ?? ???? ??? ???? ?? ???????? ?? ?????? ????????? ???????. ???? ??????? ?????? ??? ?????? ?? ????? ???? ???? ??????? ?????? ????????? ??? ??? ?????.
- ??? ???? ??? ?????? ???? ??????? ????? ???? ??????? ????????? ?? ???? ??? ??????? ??? ?????.
- ???? ?????:
- ?????? ????? ??????? ?????????? ????????? ?? ???????? ???????? ???? ????? ?? ???? ?????? ????? ???????? ?? ????? ?????? ??????? ???????? ??? ??? ???-??????????.
- ???? ????? ?? ???? ??????? ????? ??????? ????? ?????? ??????? ???? ?????? ????? ???-??????????.
- ??? ????? ????????? ???????—??? ?? ??? ?????? ???? ??????? ?????????? ???????? ????????-???? ?????? ?????????? ???????—??? ??? ????? ???? ???-??????????.
??????: ???? ????? ????? ???????
- ???? ?????:
- ?????? ???? ??????? ??? ?????? ?? ????? ("??????? ??? ????? ???????")? ??? ????? ??????? ??????? ??????? ?????? ??????? ??? ???? ??????? ????? ?????????? ?????????? ???????.
- ???? ????? ?? ?? ??????? ??????? ????? ??? ??????? ??????? ????????? ??? ????? ?????? ????? ?? ????????—??? ?? ??? ??? ???? ?????? ??? ?? ??????? ??? ????? ??????.
- ???? ???????:
- ?? ????? ??????? ??????? ??????? ???? ???? ????? ???????? ????? ??? ???????? ???????????? ?? ???? ??? ????? ???? ?? ????????? ??????? ???? ???????.
- ??????? ?? ?? ??? ?????????? ?????? ?????? ??????? ???? ???????? ???????? ????????? ?? ????? ????? ????? ???? ?????.
??????: ??????? ??????? ????????
- ???? ?????? ?????:
- ?????? ????? ????????? ??? ???-???????????? ????? ??? ?????? ??????. ??? ??????? ???????? ???? ??? ????? ???????? ?? ??????? ???????? ?????? ??? ?????? ??? ????? ??????? ?????????? ?? ??? ??? ????? ????? ?????? ????? ?????.
- ??? ???? ?? ????? ????? ?? ??????? ?????? ????? ??? ?????? ???? ??????? ?????? ??? ????? ???-??????????.
- ????????? ?? ????? ????????:
- ???? ???????? ?? ????? ?? ???????? ????????—????? ????? ??????? ????????—???? ???? ??? ??? ???-??????????.
- ????? ?? ???? ?? ????? ?? ????? ?? ???? ??????? ??? ??????? ????? ?? ??? ???-??????????.
- ??????? ???????????:
- ???? ????? ?? ??? ???? ????? ????? ?????? ??? ??????? ??????????? ??? ??? ???-??????????? ??? ????? ?????????? ???????? ???????? ?????? ???? ?????? (??? ???????) ???? ?????? ????? ???? ???????? ???????????—??? ??? ??? ??????? ?????? ?????? ?????????? ??????? ???????????.
- ????????? ??? ?? ???? ??? ???-?????????? ????? ???? ?????? ???????? ???????? ??? ????????.
??????: ??????? ??????? ?????????? ???????
- ?????? ??????? ?????:
- ?? ??????? ?? ??? ????? ???-?????????? ??? ??????? ??????? ??? ?????? ???? ?????? ????? ?????.
- ??? ???? ??????? ??????? ?????? ?? ???????? ???????? ???? ??? ???? ?????? ?????? ??????? ????? ????????? ????? ????? ???????.
- ?????? ??????? ?????:
- ???? ????? ??????? ?? ????? ???????? ?? ??????? ??? ????? ??? ??????? ????? ???????? ?? ???????—??? ?? ???? ??? ????? ??????? ?????? ?????.
- ??? ???? ?? ?? ?? ???????? ??????? ???? ??????? ?????? ????? ???????? ????? ????????.
- ?????? ????? ??????? ??????? ???? ?????? ??? ????? ????? ??????? ????????? ??????? ?? ??????? ?? ???? ????? ????? ???? ?????? ?????? ???????? ??????? ??????? ?? ??? ??????.
m-Aminophenol (MAP) is an important starting material for dyes, including a variety of leuco (or latent) dyes used in imaging technology, optical bleaches and fluorescent agents, drugs, agricultural chemicals; and high-performance polymers. Although the synthesis of m-aminophenol(s) by the reaction of resorcinol with ammonia or (di)alkylarnines has been known for about 100 years,the preferred manufacturing process had been for many years a route involving the sulfonation of nitrobenzene to m-nitrobenzenesulfonic acid, the reduction of the nitro group to give m-aminobenzenesulfonic acid, followed by the caustic fusion of sodium m-aminobenzenesulfonate to yield sodium m-aminophenolate. The m-aminophenol was isolated/purified by neutralization, filtration, and recrystallization; the overall yield of m-aminophenol from nitrobenzene was estimated by SRI International to be 58%. (Doubtless, process improvements were made by the producers using this process.) The nitrobenzene/sulfonationlreductionlcaustic fusion route is still being used commercially, notably by ACNA in Italy, the largest producer of MAP, as well as a few smaller manufacturers. Sumitomo Chemical Co. used this process as well into the early 1980s and had licensed their knowhow to Hindustani Organic Chemicals, Ltd. of India which started up a plant on this basis with a capacity for MAP of 1.5 mill. lb /yr in 1970.The output of the Indian plant was said to be devoted to making sodium p-aminosalycilate (PAS), a tuberculostatic agent.
Light grey crystal powder
Guidechem assumes no responsibility or liability for any errors or omissions in the content of this site. The information contained in this site is provided on an “as is” basis with no guarantees of completeness, accuracy, usefulness, fitness for purpose or timeliness.
AR
