Naphthionic acid
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Naphthionic acid 속성
- 녹는점
- ≥300 °C(lit.)
- 끓는 점
- 220°C (rough estimate)
- 밀도
- 1.67
- 굴절률
- 1.5250 (estimate)
- 저장 조건
- Store below +30°C.
- 용해도
- 디클로로메탄에 거의 용해되지 않습니다. 수성 염기에 용해됩니다.
- 산도 계수 (pKa)
- pK1: 2.81 (25°C)
- 물리적 상태
- powder to crystal
- 색상
- White to Light yellow to Light red
- 수용성
- 309.9mg/L(20 ºC)
- Merck
- 14,6403
- BRN
- 1971299
- CAS 데이터베이스
- 84-86-6(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | C | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 34-22 | ||
| 안전지침서 | 26-36/37/39-45-25 | ||
| 유엔번호(UN No.) | UN 2585 8/PG 3 | ||
| WGK 독일 | 3 | ||
| RTECS 번호 | QK1270000 | ||
| TSCA | Yes | ||
| 위험 등급 | 8 | ||
| 포장분류 | III | ||
| HS 번호 | 29214500 | ||
| 기존화학 물질 | KE-05-0135 |
Naphthionic acid C화학적 특성, 용도, 생산
화학적 성질
?slightly greyish to beige powder and granules. 1-Aminonaphthalene- 4 -sulfonic acid [84- 86-6]. (4-aminonaphthalene-1-sulfonic acid), naphthionic acid, Piria’s acid, C10H9NO3S, Mr 223.24, is sparingly soluble in water (0.25 % at 100℃), but the sodium, potassium, calcium, and barium salts are all readily soluble. Chlorination of 1-Aminonaphthalene- 4 -sulfonic acid with copper(II) chloride produces 4-chloro-1-aminonaphthalene, whereas the action of chlorine on an aqueous sulfuric acid solution gives 2,3-dichloro-1,4-naphthoquinone. High-temperature bromination gives 2,4- dibromo-1-aminonaphthalene, whereas vigorous nitration yields 2,4-dinitro-1-hydroxynaphthalene. Sulfonation with 25 % oleum gives 1-aminonaphthalene-4,6- and 4,7-disulfonic acids, whereas prolonged heating with sulfuric acid at 130℃ leads to 1-aminonaphthalene-5- and 6- sulfonic acids. Hydrolysis of the 1-amino group to give 1-hydroxynaphthalene-4-sulfonic acid is best achieved by a reverse-Bucherer reaction but also results from prolonged heating with 50 % sodium hydroxide.용도
Intermediate for azo dyes, e.g., Congo red. Naphthionic acid is used as an intermediate in the production of 1-hydroxynaphthalene-4-sulfonic acid, 1-aminonaphthalene-2-sulfonic acid, and 1-aminonaphthalene-4,6- and 4,7-disulfonic acids. Use as a diazo component has been previously described, e.g., C.I. Food Red 3, C.I. Food Red 7, C.I. Food Red 9, and C.I. Acid Red 25.일반 설명
4-Amino-1-naphthalenesulfonic acid is a diazo compound. It is also known as Piria′s acid.Purification Methods
It crystallises from H2O as needles of the 0.5 hydrate. Salt solutions fluoresce strongly blue. The S-benzylisothiuronium salt has m 195o (from aqueous EtOH). [Beilstein 14 IV 2793.]Naphthionic acid 준비 용품 및 원자재
원자재
황화나트륨
페놀
1,2,4-트라이클로로벤젠
2-나프틸암모니움 클로라이드
N-Acetyl-1-aminonaphthalene
1-나프틸아민
5-Amino-1-naphthalenesulfonic acid
준비 용품
콩고레드
식용 적색 2호
식용 적색 102호
2,3-디클로로-1,4-나프토퀴논
식용 황색 5호
4-하이드록시나프탈렌-1-술포닉산
황색 106 직접염료
C.I. 14720
나프티온산소다
DIRECT RED 26
1-Naphthalenesulfonic acid, 4-amino-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:1)
2,7-Naphthalenedisulfonic acid, 4-amino-5-[[(4-methylphenyl)sulfonyl]oxy]-3-[(4-sulfo-1-naphthalenyl)azo]-, trisodium salt
BRILLIANT PURPURIN R
trisodium 5-[[(2,3-dichloro-6-quinoxalinyl)carbonyl]amino]-4-hydroxy-3-[(2-sulphonatophenyl)azo]naphthalene-2,7-disulphonate
Aluminum, 3-hydroxy-4-[(4-sulfo-1-naphthalenyl)azo]-2,7-naphthalenedisulfonic acid complex
콩고레드
Naphthionic acid 공급 업체
글로벌( 158)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12456 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21691 | 55 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8823 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49390 | 58 |
| career henan chemical co | +86-0371-86658258 15093356674; |
factory@coreychem.com | China | 29826 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569266 15319487004 |
1015@dideu.com | China | 2263 | 58 |
| SIMAGCHEM CORP | +86-13806087780 |
sale@simagchem.com | China | 17367 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 |
sales@tnjchem.com | China | 34572 | 58 |