| Product Identification | Back to Contents | 【Product Name】
Oxidation base 33 | 【Synonyms】
1-Hydroxynaphthalene | 【CAS】
90-15-3 | 【Formula】
C10H8O | 【Molecular Weight】
144.16999999999999 | 【EINECS】
201-969-4 | 【RTECS】
QL2800000 | 【RTECS Class】
Mutagen; Reproductive Effector; Primary Irritant | 【Merck】
12,6470 | 【Beilstein/Gmelin】
1817321 | 【Beilstein Reference】
4-06-00-04208 | 【EC Index Number】
604-029-00-5 | 【EC Class】
Harmful; Irritant |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Colorless or yellow crystals or powder, phenolic odor. | 【Solubility in water】
Insoluble | 【Melting Point】
94 | 【Boiling Point】
282 | 【Vapor Pressure】
0.0014 (25 C) | 【Density】
1.224 g/cm3 | 【pKa/pKb】
9.40 (pKa) | 【Partition Coefficient】
2.85 | 【Heat Of Vaporization】
54.8 kJ/mol | 【Heat Of Combustion】
-4956 kJ/mol | 【Usage】
For the dyes mordant black 11, acid brown 6, chemical intermediate for dye coupling agents for azo dyes, plant growth regulator. | 【Vapor Density】
4.5 | 【Saturation Concentration】
0.1% at 94 C (calculated) | 【Refractive Index】
1.6224 (99 C) |
| First Aid Measures | Back to Contents | 【Ingestion】
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. | 【Inhalation】
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. | 【Skin】
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Discard contaminated clothing in a manner which limits further exposure. SPEEDY ACTION IS CRITICAL! | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. |
| Handling and Storage | Back to Contents | 【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. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. |
| Hazards Identification | Back to Contents | 【Inhalation】
May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation. May cause effects similar to those described for ingestion. | 【Skin】
Harmful if absorbed through the skin. Causes skin burns. | 【Eyes】
Causes eye burns. May cause eye injury. | 【Ingestion】
May be harmful if swallowed. Overexposure may result in hemolytic anemia, leading to kidney failure. Symptoms include diarrhea, headache, perspiration, listlessness and | 【Hazards】
Contact with metals may evolve flammable hydrogen gas. | 【EC Risk Phrase】
R 21/22 37/38 41 | 【EC Safety Phrase】
S 22 26 37/39 | 【UN (DOT)】
2811 |
| Exposure Controls/Personal Protection | Back 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】
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】
May cause liver and kidney damage. May cause anemia and other blood cell abnormalities. | 【Poison Class】
2 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
125 | 【Autoignition】
510 | 【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. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam. | 【Upper exp. limit】
5 | 【Lower exp. limit】
.8 | 【Fire Potential】
Combustible. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
3 | 【Stability】
Stable under normal temperatures and pressures. Substance undergoes color change upon exposure to light and air. | 【Incompatibilities】
Strong oxidizing agents, strong bases, acid chlorides, acid anhydrides, halogens. | 【Decomposition】
Carbon monoxide, carbon dioxide, acrid smoke and fumes. | 【Combustion Products】
Fire may produce irritating, corrosive and/or toxic gases. |
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