2,3-다이하이드록시나프탈렌
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2,3-다이하이드록시나프탈렌 속성
- 녹는점
- 161-165 °C (lit.) 162-164 °C
- 끓는 점
- 246.06°C (rough estimate)
- 밀도
- 1.0924 (rough estimate)
- 증기압
- 0.8 hPa (149 °C)
- 굴절률
- 1.5178 (estimate)
- 인화점
- 175 °C
- 저장 조건
- Store below +30°C.
- 용해도
- 4g/L
- 물리적 상태
- 가루
- 산도 계수 (pKa)
- 9.10±0.40(Predicted)
- 색상
- 흰색에서 분홍빛이 도는 베이지색 회색까지
- 수소이온지수(pH)
- 6 (1g/l, H2O, 20℃)
- 수용성
- 약간 용해됨
- BRN
- 742375
- CAS 데이터베이스
- 92-44-4(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xi | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 36/37/38 | ||
| 안전지침서 | 26-37/39 | ||
| WGK 독일 | 3 | ||
| RTECS 번호 | QJ4750000 | ||
| F 고인화성물질 | 10-23 | ||
| 자연 발화 온도 | >330 °C | ||
| TSCA | Yes | ||
| HS 번호 | 29072900 | ||
| 독성 | LD50 orally in Rabbit: 970 mg/kg | ||
| 기존화학 물질 | 2004-3-2637 |
2,3-다이하이드록시나프탈렌 C화학적 특성, 용도, 생산
화학적 성질
Off white to redish white powder. 2,3-Naphthalenediol [92-44-4], mp 161℃, gives a dark blue color with iron(III) chloride; is aminated to 2- amino-3-naphthol at 140℃ and 2,3-naphthalenediamine at 240℃; and couples with diazotized anilines in the 1- or 1,4-positions.용도
2,3-Dihydroxynaphthalene is used in making dyes, pigments, fluorescent whiteners, tanning agents, antioxidants, and antiseptics.일반 설명
2,3-Dihydroxynaphthalene is a polyhydroxy phenol. It is an aromatic dihydroxy compound having hydroxyl groups at ortho positions. Its reaction with molybdenum(VI) complexes has been reported. The asymmetric oxidative coupling polymerization of 2,3-dihydroxynaphthalene using the Cu(I)-bisoxazoline complex as catalyst has been reported to afford poly(2,3-dihydroxy-1,4-naphthylene), having a continuous 1,1′-bi-2-naphthol main chain structure. The nitrodisplacement reaction between nitrophthalodinitriles and 2,3-dihydroxynaphthalene has been investigated.건강위험
2,3-Naphthalenediol shows low toxicity andmild irritant actions on the skin and eyes. Theoral LD50 value for rats of a 5% solutionin propylene glycol may be on the orderof 675 mg/kg (calculated by the method ofWeil). The intravenous LD50 value for miceis 56 mg/kg. At 1% concentration, it causedslight eye irritation in female albino rabbitsand exhibited erythemal response in guineapigs. At the 0.1% level (concentration in hairdye), it had no reaction on human skin. Thiscompound was nonmutagenic in Salmonellatyphimurium strain tests.There is very little information in the literatureon the toxicity of 2,3-naphthalenediol.Assessment by the CIR expert panel on thesafety of this compound as used in cosmeticshas been inconclusive (Cosmetic, Toiletryand Fragrance Association 1987b).
Synthesis
2,3-Dihydroxynaphthalene is prepared by caustic fusion of 3-hydroxynaphthalene-2,6-disulfonic acid followed by treatment with dilute sulfuric acid under pressure, or by acid desulfonation of 2,3-dihydroxynaphthalene-6-sulfonic acid.2,3-다이하이드록시나프탈렌 준비 용품 및 원자재
원자재
2H-naphtho[2,3-d][1,3]dioxole
(1aS,1bR,2aS,6bR)-1a,1b,2a,6b-Tetrahydronaphtho[1,2-b:3,4-b']bisoxirene
Naphthalene-2,3-diol diacetate
준비 용품
2,3-다이하이드록시나프탈렌 공급 업체
글로벌( 409)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Hebei Jingbo New Material Technology Co., Ltd | +8619931165850 |
hbjbtech@163.com | China | 1000 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 |
info@fdachem.com | China | 7378 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21695 | 55 |
| QINGDAO HONG JIN CHEMCIAL CO.,LTD. | 532-83657313 |
hjt@hong-jin.com | China | 228 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Accela ChemBio Inc. | (+1)-858-699-3322 |
info@accelachem.com | United States | 19965 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 |
sale@chuangyingchem.com | CHINA | 5909 | 58 |
| career henan chemical co | +86-0371-86658258 15093356674; |
factory@coreychem.com | China | 29826 | 58 |
2,3-다이하이드록시나프탈렌 관련 검색:
1-히드록시에틸리덴-1,1-디포스포닌산 부틸산화 히드록시톨루엔 다이하이드록시아세톤 트리클로산 디하이드로나프탈렌 3,6-다이하이드록시나프탈렌-2,7-다이설폰산, 다이소듐염 4,5-디히드록시-2,7-나프탈렌디설폰산, 이나트륨 염 1,4-디하이드록시나프탈렌 크로모트로프산 1,3-나프탈렌 디올 크로모트로픽산 1,5-나프탈렌디올 2,3-다이하이드록시나프탈렌
3,5-Dihydroxybenzoic acid
1,6-DIHYDROXYNAPHTHALENE 98%,1,6-DIHYDROXYNAPHTHALENE pure
Macleaya cordata extract
Gossypol-acetic acid
GOSSYPOL