Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
Home > 2,5-Di(tert-amyl)hydroquinone > 2,5-Di(tert-amyl)hydroquinone(79-74-3)

2,5-Di(tert-amyl)hydroquinone(79-74-3)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
2,5-Di(tert-amyl)hydroquinone
Synonyms
2,5-Bis(1,1-dimethylpropyl)-1,4-benzenediol
2,5-Bis(1,1-dimethylpropyl)hydroquinone
2,5-Bis(2-methylbutan-2-yl)benzene-1,4-diol
2,5-di-T-Amylhydroquinone
2,5-di-tert-Amylhydroquinone
2,5-di-tert-Pentylhydroquinone
3,3-Tetramethyleneglutaric anhydride
8-Oxaspiro[4.5]decane-7,9-dione
CAS
5662-95-3
CAS
79-74-3
Formula
C16H26O2
Formula
C9H12O3
Molecular Weight
250.38
Molecular Weight
168.19
EINECS
201-222-2
EINECS
227-116-6
RTECS
MX6300000
RTECS Class
Reproductive Effector
Merck
12,3359
Beilstein/Gmelin
2214556
Beilstein/Gmelin
383703
Beilstein Reference
5-17-11-00080
Beilstein Reference
3-06-00-04748

Physical and Chemical Properties

Appearance
Crystals.
Appearance
White crystals.
Solubility in water
Slightly soluble
Solubility in water
Soluble
Melting Point
185
Melting Point
68
Boiling Point
323
Boiling Point
349
Vapor Pressure
0.0003 (25 C)
Density
1.05 g/cm3 (25 C)
Density
1.28 g/cm3
Partition Coefficient
5.5
Partition Coefficient
.6
Heat Of Vaporization
56.5 kJ/mol
Usage
Antioxidant for uncured rubber & for unsaturated resins & oils, food packaging, polymerization inhibitor.

First Aid Measures

Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated.
Ingestion
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Ingestion
Seek medical assistance.
Inhalation
Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
Inhalation
Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Can produce delayed pulmonary edema.
Skin
Causes skin irritation.
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.
Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.
Eyes
Causes eye irritation. May cause chemical conjunctivitis.

Handling and Storage

Storage
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Inhalation
Ingestion has caused dyspnea, anoxia, and respiratory failure. Quinone has caused asphyxia and pulmonary damage.
Skin
May cause burns.
Eyes
See Skin.
Ingestion
Vomiting and gi tract irritation have been seen.
UN (DOT)
1325

Exposure Controls/Personal Protection

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 minimize contact with skin.
Personal Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Exposure Effects
Dizziness, headache and delirium have been reported with hydroquinone exposure. Quinone has cause paralysis of the medullary centers and coma. Both quinone and hydroquinone may cause seizures. In rat studies, maternal toxic effects from exposure to hydroquinone included changes in the ovaries, fallopian tubes, and menstrual cycle. Post-implantation mortality was also observed in rat studies. <br>Observed paternal toxic effects from exposure to hydroquinone included changes in the testes, epididymis, sperm duct, prostate, seminal vesicle, Cowper's gland, accessory glands, and male fertility index. <br>Exposure to hydroquinone produced skeletal malformations in chickens and ocular and skeletal malformations in rabbits.
Exposure Effects
Effects may be delayed.
Poison Class
3

Fire Fighting Measures

Flash Point
155
Fire Fighting
Small Fires: Dry chemical, carbon dioxide, sand, earth, water spray or regular foam. Large Fires: Water spray, fog or regular foam.
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. Runoff from fire control or dilution water may cause pollution. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire.
Fire Potential
Flammable/combustible material. May be ignited by friction, heat, sparks or flames.

Accidental Release Measures

Small spills/leaks
Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. With clean shovel place material into clean, dry container and cover loosely; move containers from spill area.
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 Reactivity

Stability
No data.
Incompatibilities
Oxidizing agents.
Stability
Stable under normal temperatures and pressures.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Combustion Products
Fire may produce irritating and/or toxic gases.

Transport Information

UN Number
1325
Hazard Class
4.1
Packing Group
II; III
Contact More