메타닐산
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메타닐산 속성
- 녹는점
- >300 °C (lit.)
- 밀도
- 1.69
- 굴절률
- 1.5500 (estimate)
- 저장 조건
- Keep in dark place,Inert atmosphere,Room temperature
- 용해도
- 에탄올: 매우 약간 용해됨(lit.)
- 산도 계수 (pKa)
- 3.73(at 25℃)
- 물리적 상태
- 가루
- 색상
- 흰색에서 회색빛이 도는 베이지색
- 수용성
- 약간 용해됨
- Merck
- 14,5927
- BRN
- 473264
- 안정성
- 안정적인. 타기 쉬운. 강한 산화제, 산과 호환되지 않습니다.
- LogP
- -2.77 at 21℃
- CAS 데이터베이스
- 121-47-1(CAS DataBase Reference)
안전
- 위험 및 안전 성명
| 위험품 표기 | Xn | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 20/21/22 | ||
| 안전지침서 | 23-28-28A-25 | ||
| 유엔번호(UN No.) | 3261 | ||
| WGK 독일 | 1 | ||
| RTECS 번호 | OY2300000 | ||
| TSCA | Yes | ||
| 위험 등급 | IRRITANT | ||
| HS 번호 | 29214200 | ||
| 기존화학 물질 | KE-01191 |
메타닐산 C화학적 특성, 용도, 생산
화학적 성질
white powder용도
Metanilic acid was used in the synthesis of cytocompatible sulfonated polyanilines. It was used in fabrication of novel glucose biosensor having large active surface area and excellent conductivity. It undergoes microbial desulfonation to 3-aminophenol by Pseudomonas sp. strain S-313. It can be used to produce CN3O6(1-)*Cs(1+) and dicesium salt of N-nitrometanilic acid at temperature of 25°C.생산 방법
Metanilic acid can be obtained by sulfonation of aniline sulfate with oleum and boric acid at 20 – 50 ℃. The yield is 98%. For industrial production, however, nitrobenzene is sulfonated to m-nitrobenzenesulfonic acid, which is then reduced either with iron or catalytically with hydrogen. Crude 3-aminobenzenesulfonic acid can be used directly, either as a solution or dried, to obtain 3-aminophenol by alkali fusion. It is not sufficiently pure for use in dye manufacture, however. Therefore the crude solution is acidified; after filtration the product thus obtained is of satisfactory purity.일반 설명
White powder. Small colorless needles; toxic.공기와 물의 반응
Water insoluble [Hawley].반응 프로필
Metanilic acid is an amino acid. Reacts weakly with both acids and bases.위험도
See aniline.화재위험
Flash point data for Metanilic acid are not available, however Metanilic acid is probably combustible.Purification Methods
Crystallise the acid from water (as the hydrate), under CO2 in a semi-darkened room. The solution is photosensitive. Dry it over 90% H2SO4 in a vacuum desiccator. [Beilstein 14 H 688, 14 IV 2640.]메타닐산 준비 용품 및 원자재
원자재
니코틴산
발연황산
Iron filings
Congo red paper
Iron mud
3-나이트로벤젠설폰산 나트륨 염
Benzenesulfonic acid sodium salt
삼산화황
METANILIC ACID SODIUM SALT
Light red
염산
나이트로벤젠
철분
황산
탄산나트륨(경회)
준비 용품
cleaner LS
메타닐 옐로
3-아세틸아미노-벤젠설포닐클로라이드
REACTIVE BLUE 4
Direct Blue 106
리액티브네이비블루커
disodium 4-[[2,4-diamino-5-[(3-sulphonatophenyl)azo]phenyl]azo]-2-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]phenyl]azo]benzenesulphonate
몰단도브라운33
ACID BLUE 113
2-아미노-1,4-벤젠 다이설폰산
Tracid Rubine 5bl
SIRIUS YELLOW GC
반응성오렌지2
Reactive Orange 5
Reactive Brilliant Orange K-R
REACTIVE 청색 5
산성오렌지116
Reactive Blue 49
Reactive Brilliant Orange K-7R
ACID BLUE 120
3-아미노페놀
Benzoic acid, 5-4-4-4-(4-amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino-2-sulfophenylamino-6-(phenylamino)-1,3,5-triazin-2-ylaminophenylazo-2-hydroxy-, trisodium salt
반응성빨간198
1-아미노안트라퀴논
Reactive Blue 198
tetrasodium [mu-[[7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(2-hydroxy-5-sulphophenyl)azo]naphthalene-2-sulphonato]](8-)]]dicuprate(4-)
tetraammonium [mu-[[5,5'-[carbonylbis[imino(2-hydroxy-5-sulpho-p-phenylene)azo]]bis[6-hydroxynaphthalene-2-sulphonato]](8-)]]dicuprate(4-)
메타닐산 공급 업체
글로벌( 468)공급 업체
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