TELLURIUM(VI)FLUORIDE
TELLURIUM HEXAFLUORIDE
CAS: 7783-80-4
Molecular Formula: F6Te
TELLURIUM(VI)FLUORIDE - Names and Identifiers
TELLURIUM(VI)FLUORIDE - Physico-chemical Properties
| Molecular Formula | F6Te |
| Molar Mass | 241.59 |
| Density | (solid; -191°) 4.006; d (liq; -10°) 2.499 |
| Melting Point | -37 |
| Boling Point | -38,9°C |
| Water Solubility | slowly mixes with H2O, hydrolyzing to telluric acid [MER06] |
| Appearance | colorless gas |
TELLURIUM(VI)FLUORIDE - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R20 - Harmful by inhalation R31 - Contact with acids liberates toxic gas R34 - Causes burns |
| Safety Description | S3/7 - S9 - Keep container in a well-ventilated place. 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 | 2195 |
| Hazard Note | Toxic |
| Hazard Class | 2.3 |
TELLURIUM(VI)FLUORIDE - References
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Toxicity | Tellurium hexafluoride decomposes in water to release highly toxic and corrosive smoke. It has a strong irritating effect on the eyes, skin and mucous membranes. Inhaled vapors can stimulate the lungs and throat. Short-term overexposure can cause drowsiness, discomfort, exhaustion, weakness, dizziness, breathing with garlic smell, sweating, liver and kidney damage, pulmonary edema, bronchitis, cramps, and even suffocation to death. Skin contact can cause dermatitis. |
| storage and transportation | tellurium hexafluoride is packed in special cylinders and stored in a cool and ventilated warehouse. Isolated storage and transportation with organics, combustibles and alkalis. The "poison gas" sign must be affixed. Air and rail transportation is prohibited. In case of fire, water can be used to cool the container and close the valve quickly. Use mist water, foam, dry powder and carbon dioxide to extinguish the fire. |
| category | compressed gas and liquefied gas |
| toxicity classification | highly toxic |
| acute toxicity | inhalation-rat LCL0: 5 PPM/4 hours; Inhalation-mouse LCL0: 5 PPM/1 hour |
| flammability hazard characteristics | Decomposition of toxic hydrogen fluoride gas and tellurite in water |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from alkali and mercury |
| fire extinguishing agent | foam, carbon dioxide, dry powder, sand. |
| occupational standard | TLV-TWA 0.2 mg (tellurium)/m3; STEL 0.6 mg (tellurium)/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-threatening and health concentration | 1 ppm |
Last Update：2024-04-09 21:54:55
