Tantalum pentachloride (Tantalum chloride) Physical and Chemical Properties and Hazardous Characteristics Table

Tantalum pentachloride (Tantalum chloride) Physical and Chemical Properties and Hazardous Characteristics Table

Marker

 Alias. Tantalum chloride Dangerous Goods No. 81516
English Name. Tantalum chloride UN No. No information available
CAS number: 7721-01-9 Molecular formula. TaCl5 Molecular weight. 358.21

physical and chemical properties

 Appearance and Properties. Light yellow crystalline powder, easily deliquescent.
Main uses. Used in medicine, used as raw material of pure tantalum metal, intermediate, organic chlorination agent.
Melting point (°C). 221 Relative density (water=1). 3.68
Boiling point (℃). 239.3 Relative vapor density (air=1). No information available
Flash Point (℃). Pointless Saturated vapor pressure (k Pa). Pointless
Ignition temperature (°C). No information available Upper/lower explosion limit [%(V/V)]. No information available
Critical temperature (°C). No information available Critical pressure (MPa). No information available
Solubility. Soluble in alcohol, aqua regia, concentrated sulfuric acid, chloroform, carbon tetrachloride, slightly soluble in ethanol.

Toxicity

 LD50:1900mg/kg (rat oral)

health hazards

 This product is toxic. In contact with water, it can produce hydrogen chloride, which has an irritating effect on skin and mucous membranes.

Flammability hazards

 No information available

First aid

Measures

 Skin contact. Remove contaminated clothing and rinse thoroughly with soap and water.
Eye contact. Immediately open the upper and lower eyelids and rinse with running water for 15 minutes. Seek medical attention.
Inhalation. Remove from scene to fresh air. Keep warm and seek medical attention.
Ingestion. Rinse mouth, give milk or egg white and seek medical attention.

combustion and explosion hazards

 Hazardous characteristics. It does not burn itself, but emits toxic fumes when exposed to high heat.
Building Code Fire Hazard Classification. No information available
Hazardous Combustion Products. Hydrogen chloride.
Fire extinguishing methods. Foam, carbon dioxide, dry powder, sand and soil.

spill disposal

 Isolate the leaking contaminated area and restrict access. It is recommended that emergency personnel wear dust masks (full face masks) and acid and alkali resistant overalls. Avoid raising dust, sweep up carefully, put in bag and transfer to safe place. If there is a large amount of leakage, cover it with plastic sheet or canvas. Collect and recycle or transport to the waste treatment place for disposal.

storage and transportation precautions

 ①Precautions for operation: closed operation, local exhaust. Operators must be specially trained and strictly follow the operating procedures. It is recommended that operators wear self-absorbing filtering dust masks, chemical safety glasses, rubber acid and alkali resistant clothing, rubber acid and alkali resistant gloves. Avoid generating dust. Avoid contact with alkalis. When handling, load and unload gently to prevent damage to packaging and containers. Equip with emergency equipment to deal with leakage. Empty containers may retain hazardous materials.

②Storage Precautions:Store in a cool, dry, well-ventilated warehouse. Keep away from fire and heat source. Packaging must be sealed, do not get wet. Should be stored separately from alkalis, etc., do not mix storage. The storage area should be equipped with suitable materials to contain the leakage.

③Transportation precautions: the package should be complete when starting transportation, and the loading should be stable. During transportation, make sure the container does not leak, collapse, fall or get damaged. Strictly prohibit mixing with alkali and edible chemicals. Transportation vehicles should be equipped with leakage emergency treatment equipment. During transportation, it should be protected from exposure to sunlight, rain and high temperature.
Post time: Mar-08-2024