CESIUM SULFATE
50% SOLUTION |
PRODUCT
IDENTIFICATION
|
CAS
NO. |
10294-54-9 |
|
EINECS
NO. |
233-662-6 |
FORMULA |
Cs2SO4 |
MOL
WT. |
361.87 |
H.S.
CODE
|
|
TOXICITY
|
Oral rat LD50:
2830 mg/kg |
SYNONYMS
|
Sulfuric acid, dicesium salt;
|
SMILES |
|
CLASSIFICATION
|
|
PHYSICAL AND CHEMICAL PROPERTIES
|
PHYSICAL
STATE
|
white crystals |
MELTING POINT |
272 C |
BOILING
POINT |
|
SPECIFIC GRAVITY |
4.24
- 4.25 |
SOLUBILITY
IN WATER |
|
pH |
|
VAPOR DENSITY |
|
AUTOIGNITION
|
|
NFPA
RATINGS
|
|
REFRACTIVE
INDEX
|
|
FLASH
POINT |
|
STABILITY |
Stable
under ordinary conditions. Hygroscopic. |
APPLICATIONS
|
Cesium salts are used as mediums of density gradient centrifugation for DNA
recovery and purification (high purity of cesium chloride, cesium sulfate,
cesium trifluoroacetate) and as metal oxide catalyst enhancer for heterogeneous
processes due to their ability to lower down high oxidation states of transition
metal oxo anions. Some salts ( cesium bromide, iodide and fluoride) are used in
scintillation counters and infrared spectroscopies as they absorb x-rays, gamma
and particle radiation, and emit visible light. Industrial application of cesium
salts includue manufacturing specialty glasses (Surface ion exchange with cesium
salts improves corrosion or breakage resistances of glasses ) and in
photoelectric cells, in optical instruments, for photosensitive deposit on
cathodes and in filaments of electron tubes to increase sensitivity (cesium
chlorite, carbonate, sulfate, nitrate, perchlorate). Cesium chloride is used in
titanium dioxide manufacturing. They are used as components for propellants and
drilling grouts. Cesium sulfate and fluoride are used for brewing and in mineral
waters. Cesium Hydroxide is used as electrolyte in alkaline batteries at subzero
temperatures, color photography and as a catalyst in organic synthesis. |
SALES
SPECIFICATION |
PURE
SOLID
|
APPEARANCE
|
white crystals |
ASSAY
|
99.0%
(metals basis)
|
Cs
CONTENT |
36.73% |
K
|
500ppm
max
|
Rb
|
2000ppm
max
|
Ba
|
10ppm
max
|
Al
|
20pm
max
|
Cl
|
100ppm
max
|
Na
|
300ppm
max
|
Li
|
5ppm
max
|
SO4
|
500ppm
max
|
50%
SOLUTION
|
APPEARANCE
|
clear
liquid
|
ASSAY
|
99.0%
|
Cs
CONTENT |
36.7%
min
|
Na
|
200ppm
max
|
Cl
|
100ppm
|
SO4
|
500ppm
max
|
TRANSPORTATION |
PACKING |
300kgs
in drums |
HAZARD CLASS |
|
UN
NO. |
|
OTHER
INFORMATION
|
Hazard Symbols: XN, Risk Phrases: 20/21, Safety Phrases:
24/25-28A-37-45 |
PRICE
INFORMATION |
|
|