Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- Hydroquinone
- Product Code
- AC120910000, AC120910020, AC120910050, AC120915000, AC219930000, AC219930050, AC219930500, H329-500
- Synonyms
- 1,4-Benzenediol; p-Dihydroxybenzene; Hydroquinol; Quinol; 1,4-Dihydroxybenzene; p-Hydroxyphenol; HQ.
Regulatory Identifiers
- CAS Number
- N/A
Manufacturers & Suppliers
Fisher Scientific
One Reagent Lane Fair Lawn, NJ 07410
Emergency Contacts
Fisher Scientific
201-796-7100
CHEMTREC
800-424-9300
Hazard Identification
GHS classification, signal word, pictograms, and hazard statements
GHS Pictograms
GHS05
GHS07
GHS08
Hazard Statements
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Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| Hydroquinone EC: 204-617-8 | 123-31-9 | 99% | Yes |
First Aid Measures
Emergency procedures for chemical exposure incidents
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Get medical aid. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Do not induce vomiting. 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 immediately.
Immediate Medical Attention
Get medical aid immediately.
Firefighting Measures
Extinguishing media, specific hazards, and firefighter protection
Use foam, dry chemical, or carbon dioxide.
Dusts at sufficient concentrations can form explosive mixtures with air. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Firefighter Protection
wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Accidental Release Measures
Spill cleanup procedures, containment, and environmental protection
Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Sweep up or absorb material
Related Products
Similar products with comparable safety profiles
Handling and Storage
Safe handling precautions, storage conditions, and workplace requirements
Wash thoroughly after handling. Use only in a well-ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Store in a cool, dry place. Do not store in direct sunlight.
Wash thoroughly after handling.
Exposure Controls / PPE
Occupational exposure limits, engineering controls, and protective equipment
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Wear appropriate protective gloves to prevent skin exposure.
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.
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a Respirators: NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Wear appropriate protective clothing to prevent skin exposure.
Physical and Chemical Properties
Appearance, physical state, melting point, boiling point, and material characteristics
Stability and Reactivity
Chemical stability, hazardous reactions, and incompatible materials
Stable under normal temperatures and pressures. Substance undergoes color change upon exposure to light and air.
Has not been reported.
Light, dust generation, moisture.
Strong oxidizing agents, strong bases, caustics (e.g. ammonia, ammonium hydroxide, calcium hydroxide, potassium hydroxide, sodium hydroxide), alkalies.
Carbon monoxide, carbon dioxide, phenol.
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
The data for this section has not been processed yet.
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
The data for this section has not been processed yet.
Transport Information
UN numbers, shipping names, transport classes, and regulatory requirements
- UN Number
- UN3077
- Shipping Name
- ENVIRONMENTALLY HAZARDOUS SUBSTANCES, SOLID, N.O.S.
- Transport Class
- 9
- Packing Group
- III
Regulatory Information
Chemical regulations, safety assessments, and compliance status
The data for this section has not been processed yet.
Frequently Asked Questions
Common questions about safety, handling, and properties
What other names is Hydroquinone known by?
Hydroquinone is also known as: 1,4-Benzenediol; p-Dihydroxybenzene; Hydroquinol; Quinol; 1,4-Dihydroxybenzene; p-Hydroxyphenol; HQ.
What is the hazard signal word for Hydroquinone?
The signal word is warning.
What is the physical form of Hydroquinone?
Hydroquinone is a solid with white to off-white color. It has odorless odor.
What are the hazard statements for Hydroquinone?
This substance has 9 hazard statements:
- H302: Harmful if swallowed.
- H315: Causes eye and skin irritation.
- H317: May cause allergic skin reaction.
- H318: Eye contact may result in permanent eye damage.
- H335: May cause respiratory tract irritation.
- H340: May cause methemoglobinemia.
- H350: May cause dermatitis.
- H360: May cause reproductive and fetal effects.
- H372: Possible risks of irreversible effects.
What is the melting point of Hydroquinone?
The melting point is 170 - 174 deg C and the boiling point is 285 - 287 deg C @ 760 mmHg.