1,2,3-Trihydroxybenzol
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1,2,3-Trihydroxybenzol Eigenschaften
- Schmelzpunkt:
- 43-47 °C(lit.)
- Siedepunkt:
- 309 °C
- Dichte
- 1.112 g/mL at 25 °C(lit.)
- Dampfdichte
- 4.4 (vs air)
- Dampfdruck
- 10 mm Hg ( 167.7 °C)
- Brechungsindex
- n
20/D 1.387
- Flammpunkt:
- >230 °F
- storage temp.
- Store below +30°C.
- L?slichkeit
- water: soluble
- Aggregatzustand
- Very Fine Crystalline Powder
- pka
- pK1:9.03(0);pK2:11.63(+1) (25°C)
- Farbe
- White
- PH
- 4-5 (50g/l, H2O, 20℃)
- Wasserl?slichkeit
- 400 g/L (25 ºC)
- Sensitive
- Light Sensitive
- Merck
- 14,8000
- BRN
- 907431
- Stabilit?t:
- Stable, but decolourises in light. Combustible. Incompatible with strong oxidising agents, alkalies, metal oxides, ammonia, antipyrine, phenol, iodine, lime water, menthol, potassium permanganate, strong bases.
- InChIKey
- WQGWDDDVZFFDIG-UHFFFAOYSA-N
- LogP
- -0.47
- CAS Datenbank
- 87-66-1(CAS DataBase Reference)
- NIST chemische Informationen
- 1,2,3-Benzenetriol(87-66-1)
- EPA chemische Informationen
- Pyrogallol (87-66-1)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher | Xn | ||
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R-S?tze: | 20/21/22-52/53-68-40-36/38 | ||
S-S?tze: | 22-24/25-61-36/37-26 | ||
RIDADR | UN 2811 6.1/PG 3 | ||
WGK Germany | 3 | ||
RTECS-Nr. | UX2800000 | ||
F | 8 | ||
TSCA | Yes | ||
HS Code | 2907 29 00 | ||
HazardClass | 6.1 | ||
PackingGroup | III | ||
Giftige Stoffe Daten | 87-66-1(Hazardous Substances Data) | ||
Toxizit?t | LD50 orally in rabbits: 1.6 g/kg (Dollahite) |
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Sicherheit |
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1,2,3-Trihydroxybenzol Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
WEISSER FESTSTOFF IN VERSCHIEDENEN FORMEN, VERF?RBT SICH GRAU BEI KONTAKT MIT LICHT UND LUFT.CHEMISCHE GEFAHREN
Schwache S?ure in w?ssriger L?sung. Reagiert mit Oxidationsmitteln und Basen.ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt (ACGIH 2005).MAK nicht festgelegt (DFG 2006).
AUFNAHMEWEGE
Aufnahme in den K?rper durch Verschlucken.INHALATIONSGEFAHREN
Verdampfung bei 20°C vernachl?ssigbar; eine gesundheitssch?dliche Partikelkonzentration in der Luft kann jedoch schnell erreicht werden.WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION:Der Stoff ist reizend auf die Augen und die Atemwege und schwach reizend auf die Haut
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Wiederholter oder andauernder Kontakt kann zu Hautsensibilisierung führen.LECKAGE
Pers?nliche Schutzausrüstung: Atemschutzger?t, P2-Filter für sch?dliche Partikel. NICHT in die Umwelt gelangen lassen. Verschüttetes Material in Beh?ltern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgf?ltig sammeln. An sicheren Ort bringen.R-S?tze Betriebsanweisung:
R20/21/22:Gesundheitssch?dlich beim Einatmen,Verschlucken und Berührung mit der Haut.R52/53:Sch?dlich für Wasserorganismen, kann in Gew?ssern l?ngerfristig sch?dliche Wirkungen haben.
R68:Irreversibler Schaden m?glich.
R40:Verdacht auf krebserzeugende Wirkung.
S-S?tze Betriebsanweisung:
S22:Staub nicht einatmen.S24/25:Berührung mit den Augen und der Haut vermeiden.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
Chemische Eigenschaften
White or nearly white needle- or leaf-shaped crystals or crystalline powder.Pyrogallol is practically odorless.Verwenden
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.
Definition
ChEBI: A benzenetriol carrying hydroxy groups at positions 1, 2 and 3.Vorbereitung Methode
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.Allgemeine Beschreibung
Odorless white to gray solid. Sinks and mixes with water.Air & Water Reaktionen
Turns gray on exposure to light or air. Water soluble.Reaktivit?t anzeigen
Pyrogallol is a strong reducing agent. Reacts with alkalis, NH3, antipyrine, camphor, phenol, iron and lead salts, iodine, lime water, menthol and KMnO4.Hazard
Toxic by ingestion and skin absorption.Health Hazard
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.Brandgefahr
Pyrogallol is probably combustible.Kontakt-Allergie
Pyrogallol belongs to the phenols group. It is an old photograph developer and a low sensitizer in hair dyes.Sicherheitsprofil
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.
1,2,3-Trihydroxybenzol Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Coenzym Q-10
Bendiocarb (ISO)
Exifon
3',4',5',6'-Tetrahydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-on
4-Hydroxybutylacrylat
1,2,3-Trimethoxybenzol
1-CHLOROMETHYL-2,3,4-TRIMETHOXYBENZENE
7,8-Dihydroxy-4-methyl-2-benzopyron
1,4-Butandioldiacrylat
Gallamintriethiodid
Atracuriumbesilat
1,3-Benzenediol, 2,5-dimethoxy-
7,8-Dihydroxy-2-phenyl-4-benzopyron
7,8-Dihydroxycumarin
2'-HYDROXY-3',4'-DIMETHOXYACETOPHENONE
5-TERT-BUTYLPYROGALLOL
C.I.Mordant Green 22
3',4',5',6'-Tetrahydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-on
1,2,3-Trihydroxybenzol Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
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87-66-1(1,2,3-Trihydroxybenzol)Verwandte Suche:
Phloroglucin
Phloroglucinol dihydrate
3,4,5-Trimethoxyphenylacetonitril
3-Hydroxy-4,5-dimethoxybenzoesure
3,4,5-Trimethoxybenzoylchlorid
Colchicin
Octyl-3,4,5-trihydroxybenzoat
4-Hydroxy-3,5-dimethoxybenzoesure
Methyl-β-D-galaktopyranosid
2,3,4-Trimethoxybenzoesure
2,3,4-Trihydroxybenzoesure
3,4,5-Triethoxybenzoesure
Propyl-3,4,5-trihydroxybenzoat
3-Methoxycatechin
3,4,5-Trimethoxyhydrozimtsure
2,3,4-Trimethoxybenzonitril
3-(2,3,4-Trimethoxyphenyl)propionsure
Dodecyl-3,4,5-trihydroxybenzoat
- 1,2,3-TRIHYDROXYBENZENE TRIMETHYL ETHER
- 1,2,3-BENZENETRIOL TRIMETHYL ETHER
- 1,2,3-Trihydroxybenene
- Pyrogallic acid~1,2,3-Trihydroxybenzene
- Pyrogallol solution
- PYROGALLOL REAGENT (ACS)
- PYROGALLOL,CRYSTAL,REAGENT,ACS
- 1,2,3-trihydroxy-benzen
- 1,2,3-trihydroxybenzen(czech)
- 1,2,3-trihydroxybenzene(pyrogallol)
- 2,3-Dihydroxyphenol
- Benzene, 1,2,3-trihydroxy-
- C.I. Oxidation Base 32
- c.i.oxidationbase32
- cioxidationbase32
- Fouramine base ap
- Fouramine Brown AP
- fouraminebrownap
- Fourrine 85
- Fourrine PG
- fourrine85
- fourrinepg
- PYROGALLOL TRIMETHYL ETHER
- PYROGALLIC ACID TRIMETHYL ETHER
- PYROGALLOL (1,2,3-TRIHYDROXYBENZENE)
- Pyrogallol (Pyrogallic Acid)
- PYROGALLOL extrapure AR
- 1,2,3-Trihydroxybenzene, Pyrogallolum
- Pyrogallol, Crystal, Reagent
- Pyrogallol ,99%
- C.I. 76515
- Pyrogallol
- ISOCINCHOMERONIC ACID(RG)
- PYROGALLOL, >=98% (HPLC)
- 1,2,3-Trihydroxybenzene Pyrogallol Pyrogallic acid 1,2,3-Benzenetriol
- Focus of gallic acid
- Pyrogallol, 99% 500GR
- (1S,3R)-1-(2-Nitrophenyl)ethylcarboxyaminocyclopentane-1,3-dicarboxylicacid
- NPEC-caged-(1S,3R)-ACPD
- Pyrogallol solution,1,2,3-Trihydroxybenzene
- Pyrogallol, synthesis grade
- Spiro[3H-2,1-benzoxanthiole-3,9′-xanthene]3′,4′,5′,6′-tetrol-1,1-dioxide
- PYROGALLOL(RG)
- Progallic acid
- PYROGALLIC ACID AR GRADE
- PYROGALLIC ACID NF POWDER
- PYROGALLOL EXTRA PURE, PF. FRANC.
- PYROGALLOL 99% A.C.S. REAGENT
- Pyrogallol solution 25 %
- PYROGALLOL, PH HELV
- PYROGALLOL SOLUTION, ~25% IN WATER
- Pyrogallic Acid, ACS Reagent Grade
- Pyrogallic Acid, CP Grade
- Pyrogallic Acid, Powder CP1
- Pyrogallic Acid, Powder CP2
- Pyrogallic Acid, Technical Grade
- Pyrogallol Acetone Resin 205-215
- PyrogallolGr-(1,2,3-Trihydroxybenzene)