Basic information
- CAS
12034-77-4- Standard SMILES
[Se]=[Nb]=[Se]- InChIKey
CXRFFSKFQFGBOT-UHFFFAOYSA-N- Molecular formula
- NbSe2
- Average molar mass
- 250.85 g/mol
- Monoisotopic mass
- 252.73942
Names & identifiers
- Preferred name
- Niobium selenide (NbSe2)
- IUPAC
- bis(selanylidene)niobium
- English name
- NIOBIUM SELENIDE
- Molecular formula
- NbSe2
- Molecular weight
- 250.85
Names & synonyms
12034-77-4Niobium diselenideNiobium selenide (NbSe2)EINECS 234-811-8NSC 378353RefChem:165976DTXCID601436852234-811-8DTXSID501014243UN3283Niobium selenideColumbium selenide
Show more names
2H-NbSe2 CrystalIV)NIOBIUM SELENIDENIOBIUM(IV) SELENIDENiobium diselenide, ≥99.9%Niobium(IV) selenide(NbSe2)
bis(selanylidene)niobiumMFCD00016228NiobiumselenidediselanylideneniobiumNiobium Selenide PowderSCHEMBL29022711NSC378353NSC-378353
Database identifiers
- CAS
12034-77-4- PubChem CID
- 82841
- EC Number
- 234-811-8
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 3
- Formal charge
- 0
- Complexity
- 18.3
Experimental & physicochemical properties
Chemical ClassesMetals -> Metals, Inorganic Compounds
Physical DescriptionBlack odorless powder; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- 1316 ℃ · >1316℃ [HAW93]
- Density
- 6.3 · 6.300
- form
- Powder
- color
- gray hexagonal, hexane crystals, crystalline
- Water Solubility
- Insoluble in water.
- Exposure limits
- 0.2 mg/m3NIOSH: · ACGIH: TWA 0.2 mg/m3NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3
- InChI
- 1S/Nb.2Se
- InChIKey
- CXRFFSKFQFGBOT-UHFFFAOYSA-N
- SMILES
- [Se]=[Nb]=[Se]
- CAS DataBase Reference
- 12034 · 12034-77-4(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H301+H331 (90.9%): Toxic if swallowed or if inhaled [Danger Acute toxicity, oral; acute toxicity, inhalation]
P260, P261, P264, P270, P271, P273, P301+P316, P304+P340, P316, P319, P321, P330, P391, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 44 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Hazards SummaryAn irritant; Toxic by ingestion and inhalation; May have cumulative adverse effects; [Alfa Aesar MSDS] See Niobium. See Selenium. See Molybdenum diselenide.
Hazard Classes and CategoriesAcute Tox. 3 (100%)
Safety & protection
Exposure Control and Personal Protection0.02 [mg/m3], as Se, inhalable fraction[German Research Foundation (DFG)]
Threshold Limit Values (TLV)0.2 [mg/m3], as Se
Permissible Exposure Limit (PEL)0.2 [mg/m3], as Se
Immediately Dangerous to Life or Health (IDLH)1.0 [mg/m3], as Se
Safety data
- wgk
- WGK 3
Chemistry & industry
Uses & manufacturing
General Manufacturing InformationNiobium selenide (NbSe2): ACTIVE
Applications
UsesIt is used as a potential substance for thin film solar cells as back contact material. It is widely used in electricity brush & special bearings because of its conductivity and lubricity property.
UsesThe two dimensional layered inorganic nanomaterials have drawn significant attention recently owing to their thickness dependent on physical and chemical properties. They find applications in photocatalysis, photovoltaics, gas sensing, lithium ion batteries, field effect transistors, spintronics etc. Transition metal dischalcogenides represent an important class of inorganic 2D materials having the aforementioned applications.
UsesLubricant and conductor at high temperatures and high vacuum.
Upstream & downstream products
Upstream raw materials
Suppliers46 total
北京华美互利生物化工010-56205725 · [email protected]
江苏艾康生物医药研发有限公司025-66061636 19370895928 · [email protected]
Aladdin Scientific[email protected]
阿法埃莎（中国）化学有限公司400-6106006 · [email protected]
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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