ChemicalBook > CAS DataBase List > CADMIUM SELENIDE

CADMIUM SELENIDE

Product Name
CADMIUM SELENIDE
CAS No.
1306-24-7
Chemical Name
CADMIUM SELENIDE
Synonyms
Red BBS;LUMIDOT CDSE;ProMotion Code;Cadmium Colours;selenoxocadmium;CADMIUM SELENIDE;Lumidot CdSe 520;cadmium selemide;selanylidenecadmium;Cadmium monoselenide
CBNumber
CB6107419
Molecular Formula
CdSe
Formula Weight
191.37
MOL File
1306-24-7.mol
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CADMIUM SELENIDE Property

Melting point:
>1350°C
Density 
5.81 g/mL at 25 °C(lit.)
refractive index 
2.87 (900 nm)
storage temp. 
2-8°C
solubility 
insoluble in H2O
form 
granular
color 
Brown-red to black
Specific Gravity
5.81
Water Solubility 
Insoluble in water.
Sensitive 
air sensitive, store cold
Crystal Structure
Hexagonal, Wurtzite (Zincite) Structure - Space Group P 63mc
Merck 
14,1626
Exposure limits
ACGIH: TWA 0.01 mg/m3; TWA 0.002 mg/m3; TWA 0.2 mg/m3
NIOSH: IDLH 9 mg/m3; IDLH 1 mg/m3; TWA 0.2 mg/m3
Stability:
store cold
CAS DataBase Reference
1306-24-7(CAS DataBase Reference)
EPA Substance Registry System
Cadmium selenide (CdSe) (1306-24-7)
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Safety

Hazard Codes 
T,N,Xn,F
Risk Statements 
21-23/25-33-50/53-65-52/53-48/20-38-20/21/22-11-63
Safety Statements 
36/37-45-60-61-28-20/21-62-16
RIDADR 
UN 2570 6.1/PG 3
WGK Germany 
3
RTECS 
EV2300000
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
II
HS Code 
28429090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H312Harmful in contact with skin

H373May cause damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P314Get medical advice/attention if you feel unwell.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
244600
Product name
Cadmium selenide
Purity
<50μm particle size, 99.99% trace metals basis, electronic grade
Packaging
10g
Price
$101
Updated
2024/03/01
Sigma-Aldrich
Product number
244600
Product name
Cadmium selenide
Purity
<50μm particle size, 99.99% trace metals basis, electronic grade
Packaging
50g
Price
$360
Updated
2024/03/01
Alfa Aesar
Product number
036323
Product name
Cadmium selenide, 99.995% (metals basis)
Packaging
5g
Price
$61.9
Updated
2023/06/20
Alfa Aesar
Product number
011057
Product name
Cadmium selenide, 99.995% (metals basis)
Packaging
50g
Price
$527
Updated
2023/06/20
Strem Chemicals
Product number
48-1011
Product name
Cadmium selenide CANdot(R) quantum dot (CdSe core), 50umol/L in hexanes, 525nm peak emission
Packaging
5ml
Price
$102
Updated
2024/03/01
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CADMIUM SELENIDE Chemical Properties,Usage,Production

Chemical Properties

3–12mm pieces (sintered), and -325 mesh 10μm or less with 99.999% purity; white to brown; cub or hexagonal crystal(s); hex: a=0.4309nm, c=0.7021 nm, enthalpy of fusion 305.307 kJ/mol; becomes red in sunlight; used as a red pigment, in semiconductors, and as an evaporation material and sputtering target to produce photoconductive films and infrared filters; possible use in the electrofabrication of microdiode arrays [HAW93] [MER06] [CER91] [KLE93] [KRE91]

Physical properties

The energy gap of the hexagonal CdSe obtained from the absorption measurement Eg (Γ6–Γ1 ) is Eg=1.84 eV, temperature coefficient -4.6×10-4 eV/K, and pressure coefficient 3.7×10-6 eV/kg–cm -2 .
The band structure of cubic CdSe is similar to that of GaAs.

Uses

In photoconductors, semiconductors, photoelectric cells, and rectifiers; in phosphors.

Uses

Cadmium selenide is used as a n-type semiconductor and its nanoparticles are used in laser diodes, opto-electronic devices, nanosensing, biomedical imaging and high efficiency solar cells. Since, it is transparent to infrared light, it finds application in photoresistors and windows for instruments utilizing IR light.

Uses

Dispersions with CdS (Aldrich products 208183, 217921) deposited on glass or Si substrates results in tunable red, yellow, or green fluorescent material.

Definition

ChEBI: Cadmium selenide is a cadmium molecular entity.

Production Methods

A single crystal can be grown artificially through the vapor phase method or the Stockbarger method.
To obtain evaporated films, the source materials are heated in the alumina crucible with a nichrome heater. Crystal with a larger grain size is obtained at a higher substrate temperature.
The following corrosives are reported:
HNO3 (water cleansing after 2–3 s)
H2SO4 (water cleansing after 5–10 s)
18 N solution of 30 HNO3:0.1 HCl:20 H2SO4 (40℃, 8 s, cleansing with concentrated H2SO4)
3 HCl:1 HNO3

Application

Cadmium selenide is used as a photoconductive detector for λ: 0.3–0.72 mm (a sharp peak at 0.7 mm) at room temperature. The typical performances are as follows:
Peak detectivity: 2.1×1011 cm Hz1/2/watt, (λ: 0.7 mm)
Response time: ca. 12 ms
Intermittent frequency: 90 Hz
Dominant noise: current noise

General Description

CdSe crystal can exist in solid hexagonal or cubic structure. CdSe behaves as an n-type semiconductor, with a bandgap of 1.74 eV (300K).1

Flammability and Explosibility

Not classified

Structure and conformation

The space lattice of CdSe (Cadmium selenide) belongs to the two types of crystal system, the cubic system, with the zinc-blend type structure that has a lattice constant of a=0.605 nm, and the hexagonal system, with the wurtzite type structure that has lattice constants of a=0.430 nm and c=0.702 nm.

CADMIUM SELENIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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CADMIUM SELENIDE Suppliers

China 57 Europe 1 France 1 Germany 2 India 10 Japan 1 Switzerland 1 United Kingdom 5 United States 19 Global 97
Alfa Aesar
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400-6106006
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021-67582001/03/05
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Shandong Xiya Chemical Co., Ltd
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Sinopharm Chemical Reagent Co,Ltd.
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Beijing HuaMeiHuLiBiological Chemical
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Shanghai Aladdin Bio-Chem Technology Co.,LTD
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Chengdu RunZeBenTu Chemical Co., Ltd
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Sigma-Aldrich
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Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.
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career henan chemical co
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LEAPCHEM CO., LTD.
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View Lastest Price from CADMIUM SELENIDE manufacturers

Career Henan Chemical Co
Product
CADMIUM SELENIDE 1306-24-7
Price
US $1.00/g
Min. Order
50 g
Purity
99.9%
Supply Ability
20kg
Release date
2018-12-18

1306-24-7, CADMIUM SELENIDERelated Search:

Sodium chloride INDIUM PHOSPHIDE Zinc sulfide Cadmium sulfate CADMIUM TELLURIDE Strontium fluoride Zinc selenide CADMIUM HYDROXIDE CADMIUM CARBONATE Titanium dioxide 4-Nitrophenol Sodium borohydride CADMIUM CADMIUM SELENIDE CADMIUM SULFOSELENIDE cadmium selenide sulphide Cadmium selenide (CdSe), solid soln. with cadmium sulfide, zinc selenide and zinc sulfide, copper and manganese-doped Cadmium selenide (CdSe), solid soln. with cadmium sulfide, zinc selenide and zinc sulfide, manganese and silver-doped

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