Hydroquinone (EC: 204-617-8)
Corrosion
Exclamation Mark
Health Hazard
Environment
Precautionary Statements
| Code | Statement |
|---|---|
P203 |
Obtain, read and follow all safety instructions before use. |
P261 |
Avoid breathing dust/fume/gas/mist/vapors/spray. |
P264 |
Wash hands [and ...] thoroughly after handling. |
P264+P265 |
Wash hands [and ...] thoroughly after handling. Do not touch eyes. |
P270 |
Do not eat, drink or smoke when using this product. |
P272 |
Contaminated work clothing should not be allowed out of the workplace. |
P273 |
Avoid release to the environment. |
P280 |
Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... |
P301+P317 |
IF SWALLOWED: Get medical help. |
P302+P352 |
IF ON SKIN: wash with plenty of water/... |
P305+P354+P338 |
IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. |
P317 |
Get emergency medical help. |
P318 |
if exposed or concerned, get medical advice. |
P321 |
Specific treatment (see information on this label and safety datasheet)). |
P330 |
Rinse mouth. |
P333+P317 |
If skin irritation or rash occurs: Get medical help. |
P362+P364 |
Take off contaminated clothing and wash it before reuse. |
P391 |
Collect spillage. |
P405 |
Store locked up. |
P501 |
Dispose of contents/container to ... |
Exposure Limits
| OSHA PEL | 2 mg-m3 |
| NIOSH REL | Ceiling: 2 mg-m3 |
| NIOSH IDLH | 50 mg-m3 |
| Skin Notation | Yes — can be absorbed through skin |
Physical Properties
Light-tan, light-gray, or colorless crystals.
| Boiling Point | 545°F |
| Flash Point | 329°F |
| Vapor Pressure | 4 mmHg at 302°F |
| Specific Gravity | 1.332 at 59°F |
NFPA 704 Diamond
1
2
0
Health
Fire
Reactivity
Target Organs
eye irritation, conjunctivitis, corneal edema, ulceration, scarring
Synonyms
p-benzenediol; 1,4-benzenediol; dihydroxybenzene; 1,4-dihydroxybenzene; quinol
Data Sources
- GHS Classification: PubChem CID 785
- OSHA PEL: OSHA Occupational Chemical Database
- NIOSH REL/IDLH: NIOSH Pocket Guide
Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.
See something wrong? Report a data issue.