| Customization: | Available |
|---|---|
| CAS No.: | 87-66-1 |
| Formula: | C6h6o3 |
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Pyrogallol quick Details
Chemical Name: Pyrogallol
CAS No.: 87-66-1
Molecular Formula: C6H6O3
Pyrogallol structure:
Molecular weight: 126.11
Appearance: White and lustrous crystalline powder
Assay: 99%min
Pyrogallol typical Properties
| Appearance | White to light yellow powder |
| Appearance | White and lustrous crystalline powder |
| Content | ≥99.5% |
| Water | ≤0.5% |
| Melting point | 131-135ºC |
| Solubility in water | Passes test |
| Residue on ignition | ≤0.05% |
| Chlorides | ≤0.002% |
| Sulfates | ≤0.01% |
| Gallic acid | Passes test |
Pyrogallol Usage
Used for preparing metal colloidal solution, leather coloring, dyeing of fur, hair, etc., etching, etc.; and can be used as a developer for film film, infrared photographic heat-sensitive agent, styrene and polystyrene polymerization inhibitor, medicine and Intermediates for dyes, reagents for analysis, etc. Pyrogallic acid is used as an absorbent for oxygen in gas analysis, and is used in cosmetics for powders, hair conditioners, hair dyes, and the like.
Pyrogallol Packaging and Shipping
Packing:25kg/drum
Delivery:by sea/by air
Pyrogallol Storage
Avoid moisture, rain; keep it in dry and ventilating place.
| Pyrogallol Basic information |
| Product Name: | Pyrogallol |
| Synonyms: | Pyrogallic, AR;Pyrogallol 87-66-1 1,2,3-Trihydroxybenzene;1,2,3-Trihydroxybenzene 87-66-1 Pyrogallol;Pyrogallic, >99.0%(GC);1,2,3-Trihydroxybenzen;1,2,3-trihydroxy-benzen;1,2,3-trihydroxybenzen(czech);1,2,3-trihydroxybenzene(pyrogallol) |
| CAS: | 87-66-1 |
| MF: | C6H6O3 |
| MW: | 126.11 |
| EINECS: | 201-762-9 |
| Product Categories: | FINE Chemical & INTERMEDIATES;Aromatic Hydrocarbons (substituted) & Derivatives;ACS Grade;Building Blocks;Chemical Synthesis;Essential Chemicals;Inorganic Salts;Organic Building Blocks;Oxygen Compounds;Polyols;Research Essentials;Solutions and Reagents;Hypericum perforatum (St John′;Nutrition Research;Phytochemicals by Plant (Food/Spice/Herb);s wort);Pharmacopoeia;Pharmacopoeia A-Z;Food additive , Antioxidant anticorrosive |
| Mol File: | 87-66-1.mol |
| Pyrogallol Chemical Properties |
| Melting point | 43-47 °C(lit.) |
| Boiling point | 309 °C |
| density | 1.112 g/mL at 25 °C(lit.) |
| vapor density | 4.4 (vs air) |
| vapor pressure | 10 mm Hg ( 167.7 °C) |
| refractive index | n20/D 1.387 |
| Fp | >230 °F |
| storage temp. | Desiccate at RT |
| solubility | water: soluble |
| pka | pK1:9.03(0);pK2:11.63(+1) (25°C) |
| form | Very Fine Crystalline Powder |
| color | White |
| PH | 4-5 (50g/l, H2O, 20ºC) |
| Water Solubility | 400 g/L (25 ºC) |
| Sensitive | Light Sensitive |
| Merck | 14,8000 |
| BRN | 907431 |
| Stability: | Stability Stable, but decolourises in light. Combustible. Incompatible with strong oxidising agents, alkalies, metal oxides, amonia, antipyrine, nol, iodine, lime water, menthol, potassm peanganate, strong bases. |
| InChIKey | WQGWDDDVZFFDIG-UHFFFAOYSA-N |
| CAS DataBase Reference | 87-66-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,2,3-Benzenetriol(87-66-1) |
| EPA Substance Registry System | Pyrogallol (87-66-1) |
| Safety Information |
| Hazard Codes | Xn |
| Risk Statements | 20/21/22-52/53-68-40-36/38 |
| Safety Statements | 22-24/25-61-36/37-26 |
| RIDADR | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | UX2800000 |
| F | 8 |
| TSCA | Yes |
| HS Code | 2907 29 00 |
| HazardClass | 6.1 |
| PackingGroup | III |
| Hazardous Substances Data | 87-66-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in rabbits: 1.6 g/kg (Dollahite) |
| MSDS Information |
| Provider | Language |
|---|---|
| SigmaAldrich | English |
| ACROS | English |
| ALFA | English |
| Pyrogallol Usage And Synthesis |
| Chemical Properties | white crystalline solid |
| Chemical Properties | White or nearly white needle- or leaf-shaped crystals or crystalline powder.Pyrogallol is practically odorless. |
| Uses | Pyrogallol is used in the manufacture of various dyes; in dyeing furs, hairs, and feathers; for staining leather; in engraving;as a developer in photography; and as an analytical reagent.. |
| Uses | Metal-complexing agent |
| Uses | Complexing agent; reducing agent; alkaline solution indicator for gaseous oxygen. |
| Definition | ChEBI: A benzenetriol carrying hydroxy groups at positions 1, 2 and 3. |
| Production Methods | 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. |
| General Description | Odorless white to gray solid. Sinks and mixes with water. |
| Air & Water Reactions | Turns gray on exposure to light or air. Water soluble. |
| Reactivity Profile | Pyrogallol is a strong reducing agent. Reacts with alkalis, NH3, antipyrine, camphor, phnol, iron and lead salts, iodine, lime water, menthol and KMnO4. |
| Hazard | Toxic by ingestion and skin absorption. |
| Health Hazard | The toxic symptoms are similar to those of pheol. It can enter the body by absorption through skin and ingestion. The poisoning effects are nausea, vomiting, gastritis, hemolysis, methemoglobinemia, kidney and liver damage, convulsions, and congestion of lungs. High doses can cause death. Ingestion of 2-3 g of solid can be fatal to humans. The LD50 values varied widely in species. The oral LD50 value in mice is about 300 mg/kg. |
| 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. |
| Fire Hazard | Pyrogallol is probably combustible. |
| Contact allergens | Pyrogallol belongs to the phnols 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, penol, 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 actone (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. |
| Pyrogallol Preparation Products And Raw materials |
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