2,7-나프탈렌 다이설폰산
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2,7-나프탈렌 다이설폰산 속성
- 녹는점
- >300 °C(lit.)
- 밀도
- 1.6832 (rough estimate)
- 굴절률
- 1.7640 (estimate)
- 용해도
- DMSO(약간 용해됨, 가열), 메탄올(약간 용해됨), 물(약간 용해됨)
- 물리적 상태
- 고체
- 물리적 상태
- 단단한 모양
- 산도 계수 (pKa)
- -0.95±0.40(Predicted)
- 색상
- 라이트 베이지부터 베이지까지
- CAS 데이터베이스
- 90-20-0(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
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| 유해·위험 문구: |
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| 예방조치문구: |
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2,7-나프탈렌 다이설폰산 C화학적 특성, 용도, 생산
화학적 성질
1-Amino-8-hydroxynaphthalene-3,6-disulfonic acid [90-20-0]. (4-amino-5-hydroxynaphthalene-2,7-disulfonic acid), H acid, C10H9NO7S2, Mr 319.3, is usually isolated as its monosodium salt [5460-09-3], a gray powder that is slightly soluble in cold water and readily soluble in hot water; the disodium salt is very soluble in water. With diazo compounds, H acid couples ortho to the amino group under acid conditions and ortho to the hydroxyl group under alkaline conditions. Bisazo derivatives are formed by stepwise acid and alkaline coupling, with the much slower acid coupling being performed first.Purification Methods
A slightly alkaline solution of Na2CO3 (ca 22g) in water (litmus) is added to a solution of 100g of the dry acid in 750mL of hot distilled water, followed by 5g of activated charcoal and 5g of Celite. The suspension is stirred for 10minutes and filtered by suction. The acid is then precipitated by adding ca 40mL of conc HCl (solution is blue to Congo Red), then filter it by suction through a shark skin filter circular sheet (or hardened filter paper) and wash it with 100mL of distilled water. The purification process is repeated. The acid is dried overnight in an oven at 60o and stored in a dark bottle The diethylamine salt has m 306-307o(dec, from aqueous EtOH). [Post & Moore Anal Chem 31 1872 1959]. [Beilstein 14 H 840, 14 I 758, 14 II 502, 14 III 2292, 14 IV 2824.]2,7-나프탈렌 다이설폰산 준비 용품 및 원자재
원자재
준비 용품
2,7-나프탈렌 다이설폰산 공급 업체
글로벌( 248)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Changzhou waston chemical technology Co.,Ltd | +86-051985861892 +8618112881323 |
info@wastonchem.com | China | 237 | 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 | 15928 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21691 | 55 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +86-18949832763 |
info@tnjchem.com | China | 2989 | 55 |
| Shanghai Zheyan Biotech Co., Ltd. | 18017610038 |
zheyansh@163.com | CHINA | 3620 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 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 |
2,7-나프탈렌 다이설폰산 관련 검색:
설파닐산 설파닐산 나트륨 염 설파믹산암모늄 설파믹산 글리신 설파민산니켄 당밀 H 액시드 모노나트륨 염 1-아미노-8-나프톨-3,6-다이설폰산
Sulfamic acid monosodium salt
AZOMETHINE H
1-AMINO-8-NAPHTHOL-2,4-DISULFONIC ACID MONOSODIUM SALT
4-acetamido-5-hydroxynaphthalene-2,7-disulfonic acid
PALATINE CHROME GREEN
2-amino-5-hydroxynaphthalene-1,7-disulphonic acid
8-AMINO-1-NAPHTHOL-3,6-DISULFONIC ACID MONOSODIUM SALT N-HYDRATE
N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea
2-Amino-8-naphthol-3,6-disulfonic acid