Cesium
Cesium
- CAS:
- 7440-46-2
- MF:
- Cs
- MW:
- 132.91
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Properties
- Melting point:
- 28.5 °C (lit.)
- Boiling point:
- 705 °C (lit.)
- Density
- 1.873 g/mL at 25 °C (lit.)
- vapor pressure
- 1 mm Hg ( 279 °C)
- storage temp.
- 2-8°C
- solubility
- H2O: soluble
- form
- ingot
- color
- Silver
- Specific Gravity
- 1.892
- Resistivity
- 19 μΩ-cm, 0°C
- Water Solubility
- reacts with H2O to evolve H2; soluble liquid NH3 [MER06]
- Sensitive
- moisture sensitive
- Merck
- 13,2018
- Exposure limits
- ACGIH: TWA 2 ppm; STEL 4 ppm
OSHA: TWA 2 ppm(5 mg/m3)
NIOSH: IDLH 25 ppm; TWA 2 ppm(5 mg/m3); STEL 4 ppm(10 mg/m3)
- Stability:
- Flammable solid; highly flammable in powder form. Moisture-sensitive. Incompatible with chlorine, phosphorus, water.
- CAS DataBase Reference
- 7440-46-2(CAS DataBase Reference)
- EPA Substance Registry System
- Cesium (7440-46-2)
Safety Information
- Symbol(GHS)
GHS02,GHS05
- Signal word
- Danger
- Hazard statements
- H260-H314
- Precautionary statements
- P223-P231+P232-P280-P305+P351+P338-P370+P378-P422
- Hazard Codes
- Xi,C,F
- Risk Statements
- 36/38-34-14/15-11
- Safety Statements
- 26-45-43-36/37/39-16-8
- RIDADR
- UN 3264 8/PG 3
- WGK Germany
- 3
- RTECS
- FK9225000
- F
- 10
- TSCA
- Yes
- HazardClass
- 4.3
- PackingGroup
- I
- HS Code
- 28051990
- Hazardous Substances Data
- 7440-46-2(Hazardous Substances Data)
Use
Cesium is used in photovoltaic cells, vacuum tubes, scintillation counters, and atomic clocks. In photoelectric cells, as a "getter" in vacuum tubes; in photoemitter devices, scintillation counters. Adsorbent in CO2 purifn; scavenger of gases and impurities in metallurgy. For doping catalysts. For construction and operation of one type of atomic clock based on the vibrational frequency (9,192.76 megacycles/sec) of 133Cs. 137Cs in process control instruments, sewage and sludge sterilization.
0 India supplier list of "Cesium"
- Product Name:Cesium
- Products Intro:Brand:sigma aldrich | Product Number:14714 | Purity:purum,≥99.5%
- Company Type: Trader
- Country/Region: Bangalore,INDIA
- Product Name:cesium
- Products Intro:Brand:thermofisher.in | Product Number:219190010 | Purity:≥99.95%
- Company Type: Trader
- Country/Region: Maharashtra,INDIA
- Product Name:Cesium
- Products Intro:Purity: 0.99 | CustNote: 1KG,5KG,25KG,200KG
- Company Type: Trader
- Country/Region: CHINA
- Product Name:Cesium
- Company Type: Reagent
- Country/Region: CHINA
- Main Products: Gamma-butyrolactone
- Product Name:Cesium
- Products Intro:Purity: 99.00% | Package: 25kgs/Drum;200kgs/Drum | CustNote: ISO 9001：2015 REACH Approved Manufacturer
- Company Type: Trader
- Country/Region: CHINA
- Product Name:Cesium
- Products Intro:Purity: 0.99 | Package: 25KG;5KG;1KG
- Company Type: Trader
- Country/Region: CHINA
- Product Name:Cesium
- Products Intro:Purity: 99.9% | Package: 200kg
- Company Type: Manufacturer
- Country/Region: CHINA
- Main Products: epoxy active diluents,UV monomers,dihydric alcohol,medical intermediates,fine chemicals
- Product Name:Cesium Standard
- Products Intro:Purity: 100μg/ml,in 1% HCl | Package: $74.9/20ml;Bulk package | CustNote: 100μg/ml,in 1% HCl
- Company Type: Trader
- Country/Region: UNITED STATES
- Main Products: Chemicals and BioChemicals,Materials Science,ligands acting on targets,Proteins,Antibodies