CADMIUM SELENIDE
- CAS No.
- 1306-24-7
- Chemical Name:
- CADMIUM SELENIDE
- Synonyms
- Red BBS;LUMIDOT CDSE;ProMotion Code;selenoxocadmium;Cadmium Colours;cadmium selemide;CADMIUM SELENIDE;Lumidot CdSe 520;selanylidenecadmium;99.995%(metalsbasis)
- CBNumber:
- CB6107419
- Molecular Formula:
- CdSe
- Molecular Weight:
- 191.37
- MOL File:
- 1306-24-7.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/5/21 16:07:43
| 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) |
| Knoop Microhardness | 1300, N/mm2 |
|---|
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS06,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H301+H331-H312-H373-H410 | |||||||||
| Precautionary statements | P273-P280-P301+P310-P302+P352+P312-P304+P340+P311-P314 | |||||||||
| 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 | |||||||||
| NFPA 704 |
|
CADMIUM SELENIDE price More Price(13)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 244600 | Cadmium selenide -325 Mesh particle size, 99.99% trace metals basis, electronic grade | 1306-24-7 | 10G | ₹6321.8 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 244600 | Cadmium selenide -325 Mesh particle size, 99.99% trace metals basis, electronic grade | 1306-24-7 | 50G | ₹22905.7 | 2022-06-14 | Buy |
| ALFA India | ALF-036323-22 | Cadmium selenide, 99.995% (metals basis) | 1306-24-7 | 100g | ₹84247 | 2022-05-26 | Buy |
| ALFA India | ALF-036323-14 | Cadmium selenide, 99.995% (metals basis) | 1306-24-7 | 25g | ₹42131 | 2022-05-26 | Buy |
| ALFA India | ALF-036323-06 | Cadmium selenide, 99.995% (metals basis) | 1306-24-7 | 5g | ₹10110 | 2022-05-26 | Buy |
CADMIUM SELENIDE Chemical Properties,Uses,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
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.
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
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
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Omkar Speciality Chemicals Ltd | + 91-251-2697347 | Maharashtra, India | 75 | 58 | Inquiry |
| Vishnupriya Chemicals Private Limited | +91-8046041737 | Telangana, India | 220 | 58 | Inquiry |
| Central Drug House(P) Ltd. | 91-11-49404040 | New Delhi, India | 6160 | 58 | Inquiry |
| Triveni chemicals | 08048762458 | New Delhi, India | 6093 | 58 | Inquiry |
| P C Chem | +91-8046061281 | Mumbai, India | 676 | 58 | Inquiry |
| Vishnupriya Chemicals Private Limited | 08046041737 | Hyderabad, India | 220 | 58 | Inquiry |
| Nano Research Elements | 08048372588Ext 365 | Delhi, India | 101 | 58 | Inquiry |
| Aritech Chemazone Private Limited | +91-9034345475 | Punjab, India | 684 | 58 | Inquiry |
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