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| CAS No.: | 10026-12-7 |
|---|---|
| Name: | Niobium chloride(NbCl5) |
| Article Data: | 186 |
| Cas Database | |
| Molecular Structure: | |
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|
|
| Formula: | Cl5Nb |
| Molecular Weight: | 270.171 |
| Synonyms: | Niobiumchloride;Niobium pentachloride;Niobium pentachloride (NbCl5);Niobium(V) chloride;Pentachloroniobium; |
| EINECS: | 233-059-8 |
| Density: | 2.75 g/mL at 25 °C(lit.) |
| Melting Point: | 204.7 °C(lit.) |
| Boiling Point: | 254 °C |
| Flash Point: | 248.2°C |
| Solubility: | reacts with water |
| Appearance: | yellow fine crystalline powder |
| Hazard Symbols: |
 C, Xi
|
| Risk Codes: | 20/21/22-34 |
| Safety: | 26-27-28-36/37/39 |
| Transport Information: | UN 3260 8/PG 2 |
| PSA: | 0.00000 |
| LogP: | 3.44750 |
| Conditions | Yield |
|---|---|
| In neat (no solvent) drying mixt. of K2NbF7 and LiCl2 at 150°C, heating mixt. in inert gas atmosphere at 750°C for 1 h;; | 90% |
| In neat (no solvent) drying mixt. of K2NbF7 and LiCl2 at 150°C, heating mixt. in inert gas atmosphere at 750°C for 1 h;; | 90% |
| Conditions | Yield |
|---|---|
| In neat (no solvent) drying mixt. of K2NbF7 and CaCl2 at 150°C, heating mixt. in inert gas atmosphere at 750°C for 1 h;; | 90% |
| In neat (no solvent) drying mixt. of K2NbF7 and CaCl2 at 150°C, heating mixt. in inert gas atmosphere at 750°C for 1 h;; | 90% |
| Conditions | Yield |
|---|---|
| In neat (no solvent) drying mixt. of K2NbF7 and MgCl2 at 150°C, heating mixt. in inert gas atmosphere at 750°C for 1 h;; | 90% |
| In neat (no solvent) drying mixt. of K2NbF7 and MgCl2 at 150°C, heating mixt. in inert gas atmosphere at 750°C for 1 h;; | 90% |
phosphorus pentachloride
A
niobium pentachloride
B
tellurium tetrachloride
C
phosphorus trichloride
| Conditions | Yield |
|---|---|
| In neat (no solvent) molar ratio niobium ditelluride/PCl5 1/8; heated in evacuated sealed ampoules for 2 h at 170°C, cooled; PCl3 removed in a vac. at 80°C, extd. with hot monoglyme, the residue dried in a vac.; NMR, mass spectra; | A n/a B n/a C 82% |
| In neat (no solvent) molar ratio niobium ditelluride/PCl5 1/4; heated in evacuated sealed ampoules for 2 h at 170°C, cooled; PCl3 removed in a vac. at 80°C, extd. with hot monoglyme, the residue dried in a vac.; NMR, mass spectra; | A n/a B n/a C >99 |
| Conditions | Yield |
|---|---|
| In neat (no solvent) NbOCl3 is chlorinated by COCl2 over coal heated to 350 - 600°C (most favourable results are achieved by use of active coal) to give NbCl5;; | |
| In neat (no solvent) NbOCl3 is chlorinated by COCl2 over coal heated to 350 - 600°C (most favourable results are achieved by use of active coal) to give NbCl5;; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) at 280°C in sealed tube;; |
| Conditions | Yield |
|---|---|
| With carbon monoxide In neat (no solvent) NbOCl3 is chlorinated by equimolar mixts. of CO and Cl2 or by COCl2 over coal heated to 350 - 600°C (most favourable results are achievedby use of active coal) to give NbCl5;; | |
| With carbon monoxide In neat (no solvent) NbOCl3 is chlorinated by equimolar mixts. of CO and Cl2 or by COCl2 over coal heated to 350 - 600°C (most favourable results are achievedby use of active coal) to give NbCl5;; |
niobium pentachloride
| Conditions | Yield |
|---|---|
| With Cl2 |
| Conditions | Yield |
|---|---|
| In neat (no solvent) byproducts: H2; from Nb powder, 300-350°C, 1 h; | |
| In neat (no solvent) byproducts: NbCl4; in stream of HCl at 300-900°C;; mixt. of products obtained; small amt. of NbCl4;; | |
| In neat (no solvent) from granulated Nb, above 400°C; |
| Conditions | Yield |
|---|---|
| In neat (no solvent) 800°C, in HCl flow; | A 0% B n/a C n/a |
| In neat (no solvent) 800°C, in HCl flow; | A 0% B n/a C n/a |
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Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.
The Niobium pentachloride, with the CAS registry number 10026-12-7, is also known as Niobium(V) chloride. It belongs to the product categories of Metal halide; Niobium Salts; Crystal Grade Inorganics; Materials Science; Metal and Ceramic Science; Niobium; Salts. Its EINECS number is 233-059-8. This chemical's molecular formula is Cl5Nb and molecular weight is 270.17. What's more, its systematic name is niobium(+2) cation pentachloride. Its classification code is Mutation data. This chemical should be sealed and stored in a ventilated and dry place. Moreover, it should be protected from light. It hydrolyzes in air, and samples are often contaminated with small amounts of NbOCl3. It is often used as a precursor to other compounds of niobium. This substance is the main precursor to the alkoxides of niobium, which find niche uses in sol-gel processing. It is also the precursor to many other laboratory reagents.
Preparation: Industrially, Niobium pentachloride is obtained by direct chlorination of niobium metal at 300 to 350 °C. In the laboratory, it is often prepared from Nb2O5, the main problem being incomplete reaction to give the oxyhalides. The conversion can be effected with thionyl chloride: It also can be prepared by chlorination of niobium pentoxide in the presence of carbon at 300°C. The products, however, contain small amounts of NbOCl3.
2 Nb + 5 Cl2 → 2 NbCl5
When you are using this chemical, please be cautious about it as the following:
This chemical is harmful by inhalation, in contact with skin and if swallowed. It can cause burns. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. After contact with skin, you should wash immediately with plenty of ... (to be specified by the manufacturer). When using it, you need wear suitable protective clothing, gloves and eye/face protection. After using it, you must ake off immediately all contaminated clothing.
You can still convert the following datas into molecular structure:
(1)SMILES: [Nb+2].[Cl-].[Cl-].[Cl-].[Cl-].[Cl-]
(2)Std. InChI: InChI=1S/5ClH.Nb/h5*1H;/q;;;;;+2/p-5
(3)Std. InChIKey: WYLNVWMMGXVYLE-UHFFFAOYSA-I
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 61mg/kg (61mg/kg) | LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) KIDNEY, URETER, AND BLADDER: URINE VOLUME INCREASED | Toxicology and Applied Pharmacology. Vol. 4, Pg. 385, 1962. |
| mouse | LD50 | oral | 829mg/kg (829mg/kg) | Hygiene and Sanitation Vol. 31(7-9), Pg. 328, 1966. | |
| rat | LD50 | intraperitoneal | 40mg/kg (40mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. | |
| rat | LD50 | oral | 1400mg/kg (1400mg/kg) | Hygiene and Sanitation Vol. 31(7-9), Pg. 328, 1966. |
