ChemicalBook >>2-Methylhydroquinone>>2,5-Dihydroxytoluene(95-71-6)

2,5-Dihydroxytoluene(95-71-6)

2,5-Dihydroxytoluene(95-71-6)
Product IdentificationBack to Contents
【Product Name】

2,5-Dihydroxytoluene
【Synonyms】

1,4-Dihydroxy-2-methylbenzene
2,5-Dihydroxytoluene
2,5-Toluenediol
4-Hydroxy-2-methylphenol
Methyl-p-hydroquinone
Toluhydroquinone
【CAS】

95-71-6
【Formula】

C7H8O2
【Molecular Weight】

124.14
【EINECS】

202-443-7
【RTECS】

MX6700000
【RTECS Class】

Other
【Beilstein/Gmelin】

2041489
【Beilstein Reference】

4-06-00-05866
【EC Class】

harmful, irritant
Physical and Chemical PropertiesBack to Contents
【Appearance】

White to off-white solid.
【Solubility in water】

Slightly soluble
【Melting Point】

123 - 126
【Boiling Point】

285
【Vapor Pressure】

0.003 (25 C)
【pKa/pKb】

10.59 (pKa)
【Partition Coefficient】

1.1
【Heat Of Vaporization】

53.7 kJ/mol
First Aid MeasuresBack to Contents
【Ingestion】

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
【Inhalation】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Handling and StorageBack to Contents
【Storage】

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use only in a chemical fume hood. Wash clothing before reuse.
Hazards IdentificationBack to Contents
【Ingestion】

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
【Inhalation】

Dust is irritating to the respiratory tract. The toxicological properties of this substance have not been fully investigated.
【Skin】

Causes skin irritation.
【Eyes】

Causes eye irritation.
【Hazards】

Contact with metals may evolve flammable hydrogen gas.
【EC Risk Phrase】

R 22 36/37/38
【EC Safety Phrase】

S 22 26 36/37/39
【UN (DOT)】

2811
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
【Poison Class】

3
Fire Fighting MeasuresBack to Contents
【Flash Point】

140
【Autoignition】

468
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【Fire Potential】

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stability and ReactivityBack to Contents
【Disposal Code】

3
【Stability】

Stable under normal temperatures and pressures.
【Incompatibilities】

Strong oxidizing agents, strong bases.
【Decomposition】

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
【Combustion Products】

Fire may produce irritating, corrosive and/or toxic gases.
Transport InformationBack to Contents
【UN Number】

2811
【Hazard Class】

6.1
【Packing Group】

I; II; III
【HS Code】

2907 29 00
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