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| | Tellurium tetrachloride Basic information |
| | Tellurium tetrachloride Chemical Properties |
| Melting point | 224 °C(lit.) | | Boiling point | 380 °C(lit.) | | density | 3.26 g/mL at 25 °C(lit.) | | Fp | 380°C | | solubility | reacts with H2O; soluble in ethanol,toluene | | form | Powder | | Specific Gravity | 3.26 | | color | Off-white to light yellow | | Water Solubility | MAY DECOMPOSE | | Specific Heat Capacity | Cp(crystal): 0.51 J/(g·K), at 25℃ | | Sensitive | Moisture Sensitive | | Merck | 14,9126 | | Exposure limits | ACGIH: TWA 0.1 mg/m3
NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3 | | InChI | 1S/Cl4Te/c1-5(2,3)4 | | InChIKey | SWLJJEFSPJCUBD-UHFFFAOYSA-N | | SMILES | Cl[Te](Cl)(Cl)Cl | | CAS DataBase Reference | 10026-07-0(CAS DataBase Reference) | | NIST Chemistry Reference | Tellurium tetrachloride(10026-07-0) | | EPA Substance Registry System | Tellurium chloride (TeCl4), (T-4)- (10026-07-0) |
| Hazard Codes | C | | Risk Statements | 34 | | Safety Statements | 26-36/37/39-45 | | RIDADR | UN 3260 8/PG 2 | | WGK Germany | 3 | | RTECS | WY2635000 | | TSCA | TSCA listed | | HazardClass | 8 | | PackingGroup | II | | HS Code | 28121099 | | Storage Class | 8A - Combustible corrosive hazardous materials | | Hazard Classifications | Skin Corr. 1B |
| | Tellurium tetrachloride Usage And Synthesis |
| Chemical Properties | off-white to light yellow powder | | Uses | Tellurium(IV) chloride is used in organic synthesis to prepare Cl-C-C-TeCl3derivatives by reacting with alkenes and aryl tellurium compounds by reacting with electron rich arenes. It is involved in the preparation of diaryl telluride from anisole. | | Safety Profile | Mutation data reported. Experimental reproductive effects. Incompatible with ammonia. Irritant. When heated to decomposition it emits very toxic fumes of Cland Te. See also TELLURIUM COMPOUNDS. | | Synthesis | Put the tellurium dioxide with purity of 99.9% in graphite burner boat and put it in tubular electric furnace with stainless steel stove pipe; in the tubular electric furnace, pass hydrogen at the flow rate of 3L-30 L/min, and then reduce it at 500-550 for 7-9h, and get the purity of 99.9% at the end of the reaction. The metal tellurium powder obtained by hydrogen reduction is loaded into a heat-resistant glass three-necked flask with a volume of 1-5L, and a heat-resistant glass tube is inserted into the bottom of the flask from one side of the flask; firstly, the air in the three-necked flask is driven off with dry nitrogen, and the three-necked flask is heated up to 250 with an electrically heated thermal insulation set, and the air is passed through the flask by a flow rate of 2-200 ml/min, and the purity is 99.9%. The metal tellurium powder starts to be chlorinated and gradually changes into black tellurium dichloride liquid, continue to pass the chlorine gas, the tellurium dichloride gradually changes into liquid tellurium tetrachloride, and the product tellurium tetrachloride still contains some tellurium dichloride; the three-necked flask containing tellurium tetrachloride is heated up to 420 with an electric heating jacket, and the material is distilled out in the other flask with the chlorine gas gas stream, and the material in the other flask is distilled out. material is distilled out, and tetrachlorotellurium with a purity of 99.99% is obtained in another collection flask; the tetrachlorotellurium in the collection flask is moved to a distillation tower, and the interior of the distillation tower is replaced with nitrogen, and is heated with an electric heating jacket to 420C and a condenser is heated to 270C, at which time the tetrachlorotellurium begins to be distilled out; about 10% of the initial distillate is separated, and about 90% of the distillate is subsequently obtained as a pure purity of greater than 99.99% of the Anhydrous tellurium tetrachloride. |
| | Tellurium tetrachloride Preparation Products And Raw materials |
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