Naphthalene-2-sulfonic acid
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Naphthalene-2-sulfonic acid 속성
- 녹는점
- 124 °C
- 끓는 점
- 317.43°C (rough estimate)
- 밀도
- 1.44 g/cm
- 증기압
- 2.33Pa at 20℃
- 굴절률
- 1.4998 (estimate)
- 저장 조건
- Inert atmosphere,Room Temperature
- 용해도
- 물: 자유롭게 용해됨(lit.)
- 물리적 상태
- 고체
- 물리적 상태
- 단단한 모양
- 산도 계수 (pKa)
- 0.27±0.10(Predicted)
- 색상
- 하얀색
- 수용성
- 물에 용해됩니다.
- 감도
- Hygroscopic
- Merck
- 6377
- LogP
- -0.944 at 23℃
- CAS 데이터베이스
- 120-18-3(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | C,F | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 35-34-11 | ||
| 안전지침서 | 26-36/37/39-45-16 | ||
| 유엔번호(UN No.) | UN 2583 8/PG 2 | ||
| WGK 독일 | 1 | ||
| RTECS 번호 | QK1225000 | ||
| 위험 참고 사항 | Corrosive | ||
| TSCA | Yes | ||
| 위험 등급 | 8 | ||
| 포장분류 | III | ||
| HS 번호 | 2904100090 | ||
| 기존화학 물질 | KE-25557 |
Naphthalene-2-sulfonic acid C화학적 특성, 용도, 생산
화학적 성질
Nondeliquescent, white plates.Soluble in water, alcohol, and ether. Combustible.용도
Naphthalene-2-sulfonic acid is used in making direct dyes, reactive des and employed as dye and agrochemical intermediates.정의
ChEBI: Naphthalene-2-sulfonic acid is a naphthalenesulfonic acid in which the sulfo group is linked to position 2 of the naphthalene ring. It has a role as an environmental contaminant and a xenobiotic.제조 방법
Naphthalene-2-sulfonic acid is prepared by sulfonation of naphthalene.Step: With naphthalene as raw material, 98% sulfuric acid is used as sulfonating agent, and it is obtained by sulfonation at 160-166 ℃. During the sulfonation process, a small amount of α-naphthalenesulfonic acid by-product is generated. By heating, the unstable α-naphthalenesulfonic acid can be hydrolyzed at 140-150 °C to remove the sulfonic acid group, and become naphthalene and sulfuric acid. Naphthalene can be blown out. During the hydrolysis of naphthalene, a small amount of lye should be added to neutralize part of the sulfuric acid. It also acts with naphthalenesulfonic acid to form β-naphthalenesulfonic acid sodium salt crystals, which can be filtered to obtain the finished product of Naphthalene-2-sulfonic acid.
일반 설명
The fluorescence of 2-naphthalenesulfonic acid (NSA) is effectively quenched by colloidal silver via photoinduced interfacial electron transfer from the excited singlet of NSA to silver. Adsorption behavior of NSA on a conventional macroporous resin Amberlite XAD4 and hypercrosslinked resins NDA101 and NDA100 has been investigated.Purification Methods
Crystallise the acid from conc HCl. The S-benzylisothiuronium salt has m 192o (from aqueous EtOH). [Berger Acta Chem Scand 8 432 1954, Beilstein 11 H 171, 11 IV 527.]Naphthalene-2-sulfonic acid 준비 용품 및 원자재
원자재
나트륨 2-나프탈렌 설포네이트
1-나프탈렌설폰산, 테크니칼
1-Naphthalenesulfinic acid
DI-2-나프틸디설파이드
2-나프탈렌술포닐클로라이드
2-나프탈렌티올
1,6-나프탈렌디술폰산
준비 용품
Naphthalene-2-sulfonic acid 공급 업체
글로벌( 311)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Suzhou Actchem Co., Ltd. | +8618762124502 |
actchem@qq.com | China | 27 | 58 |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12470 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 |
info@fdachem.com | China | 18374 | 58 |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29797 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 15954 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21687 | 55 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8829 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |
Naphthalene-2-sulfonic acid 관련 검색:
나프탈렌 다이노닐 나프탈렌 설폰산 아세트산 나트륨 2-나프탈렌 설포네이트 시트르산 엽산 1-나프탈렌설폰산, 테크니칼 3-하이드록시-4-((2-설포-4-((4-설포페닐)아조)페닐)아조N-2,7-나프탈렌디술폰산 테트라나트륨 이나트륨 7-하이드록시-8-((4-(페닐아조)페닐)아조)-1,3-나프탈렌- 디설폰산 오렌지색 012 산염료 선홍색 2R C.I. 산성 레드 71 비스(2-메틸프로필)나프탈렌술포닉 산 나트륨염 아연 디노닐나프탈렌 술폰산 나프탈렌설폰산 나트륨-포름알데하이드 공중합체 나프톨 녹색 B C.I. 산성 레드 114 디노닐나프탈렌설폰 산, 칼슘 염