| Product Identification | Back to Contents | 【Product Name】
C.I. 45350 | 【Synonyms】
9-(o-Carboxyphenyl)-6-hydroxy-3H-xanthen-3-one, disodium salt
D and C Yellow No. 8
Fluorescein sodium
Fluorin
Resorcinol phthalein sodium
Uranine | 【CAS】
518-47-8 | 【Formula】
C20H10Na2O5 | 【Molecular Weight】
376.28 | 【EINECS】
208-253-0 | 【RTECS】
LM5425000 | 【RTECS Class】
Tumorigen; Drug; Mutagen; Reproductive Effector; Human Data | 【Merck】
13,4185 | 【Beilstein/Gmelin】
3833041 | 【Beilstein Reference】
5-19-06-00456 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Orange-red to dark red powder. Odorless and almost tasteless. | 【Solubility in water】
500 g/L | 【Melting Point】
> 300 | 【Density】
1.601 g/cm3 (20 C) | 【pKa/pKb】
2.2, 4.4, 6.7(at 25℃) (pKa) | 【Usage】
Dye, ink pigment, in cosmetic products. |
| First Aid Measures | Back 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 if irritation or symptoms occur. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear. | 【Skin】
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid. |
| Handling and Storage | Back 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. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Ingestion】
In high doses may cause gastric irritation, nausea, vomiting, fever, skin rashes, and blood abnormalities including anemia. | 【Inhalation】
Inhalation of dust may cause respiratory tract irritation. | 【Skin】
May cause skin irritation. | 【Eyes】
May cause eye irritation. | 【EC Safety Phrase】
S 22 24/25 |
| 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. |
| Fire Fighting Measures | Back to Contents | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam. | 【Fire Potential】
This material is probably combustible. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
3 | 【Stability】
Stable under normal temperatures and pressures. | 【Incompatibilities】
Strong oxidizing agents. | 【Decomposition】
Carbon monoxide, carbon dioxide, sodium oxide. |
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