피로갈롤
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피로갈롤 속성
- 녹는점
- 43-47 °C(lit.)
- 끓는 점
- 309 °C
- 밀도
- 1.112 g/mL at 25 °C(lit.)
- 증기 밀도
- 4.4 (vs air)
- 증기압
- 10 mm Hg ( 167.7 °C)
- 굴절률
- n
20/D 1.387
- 인화점
- >230 °F
- 저장 조건
- Store below +30°C.
- 용해도
- 물에 용해
- 물리적 상태
- 매우 미세한 결정성 분말
- 산도 계수 (pKa)
- pK1:9.03(0);pK2:11.63(+1) (25°C)
- 색상
- 하얀색
- 수소이온지수(pH)
- 4-5 (50g/l, H2O, 20℃)
- 수용성
- 400g/L(25℃)
- 감도
- Light Sensitive
- Merck
- 14,8000
- BRN
- 907431
- 안정성
- 안정적이지만 빛에 따라 탈색됩니다. 타기 쉬운. 강산화제, 알칼리, 금속 산화물, 암모니아, 안티피린, 페놀, 요오드, 석회수, 멘톨, 과망간산 칼륨, 강염기와 호환되지 않습니다.
- InChIKey
- WQGWDDDVZFFDIG-UHFFFAOYSA-N
- LogP
- -0.47
- CAS 데이터베이스
- 87-66-1(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xn | ||
---|---|---|---|
위험 카페고리 넘버 | 20/21/22-52/53-68-40-36/38 | ||
안전지침서 | 22-24/25-61-36/37-26 | ||
유엔번호(UN No.) | UN 2811 6.1/PG 3 | ||
WGK 독일 | 3 | ||
RTECS 번호 | UX2800000 | ||
F 고인화성물질 | 8 | ||
TSCA | Yes | ||
HS 번호 | 2907 29 00 | ||
위험 등급 | 6.1 | ||
포장분류 | III | ||
유해 물질 데이터 | 87-66-1(Hazardous Substances Data) | ||
독성 | LD50 orally in rabbits: 1.6 g/kg (Dollahite) | ||
기존화학 물질 | KE-02669 |
피로갈롤 C화학적 특성, 용도, 생산
화학적 성질
White or nearly white needle- or leaf-shaped crystals or crystalline powder.Pyrogallol is practically odorless.용도
Pyrogallol possesses importance as a spectrophotometric reagent in the determination of niobium and tantalum. The absorptions of niobium and tantalum complexes are usually measured at 340 and 335 nm, respectively. The niobium complex is formed in slightly acidic medium, and the tantalum complex in strongly acidic medium (4 N HC1). The absorption spectra are pH-dependen.
생산 방법
Pyrogallol is prepared by heating dried gallic acid at about 200°C with the loss of carbon dioxide or by the chlorination of cyclohexanol to tetrachlorocyclohexanone, followed by hydrolysis.정의
ChEBI: A benzenetriol carrying hydroxy groups at positions 1, 2 and 3.일반 설명
Odorless white to gray solid. Sinks and mixes with water.공기와 물의 반응
Turns gray on exposure to light or air. Water soluble.반응 프로필
Pyrogallol is a strong reducing agent. Reacts with alkalis, NH3, antipyrine, camphor, phenol, iron and lead salts, iodine, lime water, menthol and KMnO4.위험도
Toxic by ingestion and skin absorption.건강위험
Inhalation of dust causes irritation of nose and throat. Ingestion may cause severe gastrointestinal irritation, convulsions, circulatory collapse, and death. Contact with eyes causes irritation. Skin contact can cause local discoloration, irritation, eczema, and death; repeated contact can cause sensitization.화재위험
Pyrogallol is probably combustible.색상 색인 번호
Pyrogallol belongs to the phenols group. It is an old photograph developer and a low sensitizer in hair dyes.Safety Profile
Human poison by ingestion and subcutaneous routes. An experimental poison by ingestion, subcutaneous, intravenous, and intraperitoneal routes. Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. 1 198 PPRSOO PYROSULFURYL CHLORIDE Readdy absorbed through the skin. Human systemic effects by ingestion: convulsions, dyspnea, gastrointestinal effects. A severe skin and eye irritant. Incompatible with alkalies, NH3, antipyrine, phenol, iron and lead salts, iodine, KMn04. When heated to decomposition it emits acrid smoke and irritating fumes. Used as a topical antibacterial agent, as an intermediate, hair dye component, and analytical reagent.Carcinogenicity
Pyrogallol was not carcinogenic in mouse and rabbit chronic dermal studies. Mice were treated twice weekly with pyrogallol in acetone (50%) on the shaved flank for life. There was no increase in dermal or systemic tumors. A similar study in rabbits also revealed no skin tumors, although positive controls showed an increase in tumors in both mice and rabbits.Pyrogallol was considered to be cocarcinogenic when administered dermally three times a week together with the skin carcinogen benzo[a]pyrene for 440 days; pyrogallol administered alone caused no increase in skin tumors.
피로갈롤 준비 용품 및 원자재
원자재
준비 용품
유비데카레논
벤디오캅
Exifone
GALLEIN
아크릴산 4-하이드록시부틸
1,2,3-Trimethoxybenzene
1-CHLOROMETHYL-2,3,4-TRIMETHOXYBENZENE
7,8-DIHYDROXY-4-METHYLCOUMARIN
1,4-부탄디올 디아크릴레이트
갈라민 트리에티오다이드
Atracurium besylate
1,3-Benzenediol, 2,5-dimethoxy-
7,8-Dihydroxyflavone
7,8-Dihydroxycoumarin
2'-HYDROXY-3',4'-DIMETHOXYACETOPHENONE
5-TERT-BUTYLPYROGALLOL
C.I.Mordant Green 22
GALLEIN
피로갈롤 공급 업체
글로벌( 717)공급 업체
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