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Tantalum selenide (TaSe2)

HCID 82873
NotesReactions
Basic informationNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
12039-55-3
Standard SMILES
[Se]=[Ta]=[Se]
InChIKey
IYJABVNLJXJBTP-UHFFFAOYSA-N
Molecular formula
Se2Ta
Average molar mass
338.89 g/mol
Monoisotopic mass
340.78104

Names & identifiers

Preferred name
Tantalum selenide (TaSe2)
IUPAC
bis(selanylidene)tantalum
English name
TANTALUM SELENIDE
Molecular formula
Se2Ta
Molecular weight
338.89

Names & synonyms

Tantalum selenide (TaSe2)Tantalum selenide12039-55-3EINECS 234-898-2DTXSID6065210RefChem:187404DTXCID6033619bis(selanylidene)tantalumTantalum diselenideBis(selenido)tantalumTantalum Selenide PowderTantalum diselenide, Crystal, 99.995%
Show more names
TaSe2XF125TaSe2 CrystalTantanium SelenideTantalumdiselenideTantalum(IV) selenide.tantalumselenide(tase2)Tantalum Diselenide (2H TaSe2)
Tantalum diselenide, bis(selanylidene)tantalum, diselanylidenetantalum, diselenoxotantalum

Database identifiers

CAS
12039-55-3
PubChem CID
82873
DTXSID
DTXSID6065210
EC Number
234-898-2

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

SpringerMaterials Propertiesthermal expansion coefficient

Physicochemical properties

Density
6.7 · 6.700
form
hexagonal crystals
color
hexagonal, hexane crystals, crystalline
InChI
1S/2Se.Ta
InChIKey
IYJABVNLJXJBTP-UHFFFAOYSA-N
SMILES
[Se]=[Ta]=[Se]
EPA Substance Registry System
Tantalum selenide (TaSe2) (12039-55-3)
UNSPSC Code
26111700 · 26111700
NACRES
23 · NA.23
Symbol(GHS)
6 · GHS06,GHS08,GHS09
Signal word
Danger
Hazard statements
301 · H301+H331-H373-H410
Precautionary statements
260 · P260-P301+P330+P331+P310-P304+P340+P311-P403+P233

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 · 4 items

Danger

H301+H331 (100%): 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 3 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Hazard Classes and CategoriesAcute Tox. 3 (100%)

Safety data

wgk
WGK 3
tsca
TSCA listed
ridadr
UN3283 - class 6.1 - PG 3 - EHS - Selenium compound, solid, n.o.s., HI: all (not BR)
Signal word
Danger
Symbol(GHS)
GHS06,GHS08,GHS09
Storage Class
6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects
Hazard statements
H301+H331-H373-H410
Hazard Classifications
Acute Tox. 3 InhalationAcute Tox. 3 OralAquatic Acute 1Aquatic Chronic 1STOT RE 2
Precautionary statements
P260-P301+P330+P331+P310-P304+P340+P311-P403+P233

Chemistry & industry

Uses & manufacturing

General Manufacturing InformationTantalum selenide (TaSe2): ACTIVE
Applications · 2 items

UsesThe two dimensional layered inorganic nanomaterials have drawn significant attention recently owing to their thickness dependent 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 that have the aforementioned applications.

General DescriptionThe hexagonal layered crystal structure of Tantalum diselenide constitutes of Se-Ta-Se layers in various stacking arrangements. The layered structure allows lamination or exfoliation of the layers.

Upstream & downstream products

Upstream raw materials

TantalumSelenium

Suppliers14 total

上海麦克林生化科技股份有限公司021-50706066 15221275939 · [email protected]
Aladdin Scientific[email protected]
Sigma-Aldrich西格玛奥德里奇(上海)贸易有限公司021-61415566 800-8193336 · [email protected]
Alfa Chemistry1-516-6625404 · [email protected]
南兴化工(江苏)有限公司

Related reactions

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Compound notes

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On this pageBasic informationNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
RIDADR
3283 · UN3283 - class 6.1 - PG 3 - EHS - Selenium compound, solid, n.o.s., HI: all (not BR)
WGK Germany
3 · WGK 3
TSCA
TSCA listed
Storage Class
6.1 C · 6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects
Hazard Classifications
3 InhalationAcute · Acute Tox. 3 InhalationAcute Tox. 3 OralAquatic Acute 1Aquatic Chronic 1STOT RE 2
0512-66387035 18662433356 · [email protected]
安耐吉化学&3A(安徽泽升科技股份有限公司)400-0056266 · [email protected]
上海万千化工有限公司18796480002 18796480002 · [email protected]
Shaanxi Didu New Materials Co. Ltd+86-86-17392712779 +86-13289823923 · [email protected]
四川六族半导体材料有限公司13541048799 15928092740 · [email protected]
河南阿尔法化工有限公司0371-55051623 18137891487 · [email protected]
郑州艾克姆化工有限公司037163312495 13303845143 · [email protected]
湖南秉航新材料有限公司85521272 18932438858 · [email protected]
上海亿万化工有限公司00-18662433356 18662433356 · [email protected]
河南卓凡化工有限公司15638881523 · [email protected]