90Th
THORIUM
CAS: 7440-29-1
Molecular Formula: Th
90Th - Names and Identifiers
| Name | THORIUM |
| Synonyms | 90Th Torio THORIUM Thorium-232 Thorium, pyrophoric thorium metal,pyrophoric THORIUM PLASMA EMISSION STANDARD |
| CAS | 7440-29-1 |
| EINECS | 231-139-7 |
90Th - Physico-chemical Properties
| Molecular Formula | Th |
| Molar Mass | 232.04 |
| Density | 1.03g/mLat 25°C |
| Melting Point | 1750° (Katzin, Sonnenberger); mp 1690° (Cuthbert) |
| Boling Point | bp ~3800° |
| Water Solubility | soluble acids; insoluble H2O, alkalies [HAW93] |
| Appearance | soft gray-white metal |
90Th - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 3264 8/PG 3 |
| Hazard Class | 7 |
| Packing Group | Commercial |
90Th - References
| (IARC) carcinogen classification | 1 (Vol. 78, 100D) 2012 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| category | more flammable solids |
| explosive hazard characteristics | dust explosion in fire |
| flammability hazard characteristics | powder is flammable when exposed to open flame, high temperature and oxidant |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from oxidant |
| fire extinguishing agent | dry sand, dry powder |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-06-12 16:38:06
