?? ???
?? ??? ??
???
1019 °C (lit.)
?? ?
1900 °C
??
4.243 g/mL at 25 °C (lit.)
?? ??
Inert atmosphere,Room Temperature
???
H2 O: 2 M at 20 °C, ??, ??
??? ??
??
Specific Gravity
4.243
??
???
pH ??
6.0 - 7.5
??????(pH)
5.8～6.8 (50g/L, 25℃)
???
?? ?? ? ????. ???, ???, ???? ?? ?????.
??
Hygroscopic
Merck
14,2016
???
????.
InChI
1S/2Cs.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
InChIKey
FLJPGEWQYJVDPF-UHFFFAOYSA-L
SMILES
[Cs+].[Cs+].[O-]S([O-])(=O)=O
CAS ??????
10294-54-9(CAS DataBase Reference)
NIST
Cesium sulfate(10294-54-9)
EPA
Sulfuric acid, dicesium salt (10294-54-9)
Absorption
≤0.2 at 280 in H2O at 50%
??
?? ? ?? ??
?? ? ???? ?? (GHS)
??? ??
Xn
?? ???? ??
20/21
?????
22-24/25
WGK ??
2
RTECS ??
FL0800000
TSCA
TSCA listed
HS ??
28332990
???? ???
11 - Combustible Solids
???? ??
KE-05446
????(GHS):
?? ?:
Warning
??·?? ??:
??
??·?? ??
?? ??
??
?? ?
?? ??
P- ??
H302 ??? ???
?? ?? ?? - ??
?? 4
??
P264, P270, P301+P312, P330, P501
H361 ?? ?? ????? ??? ??? ??? ???
???? ??
?? 2
??
P201, P202, P281, P308+P313, P405,P501
H373 ??? ?? ?? ???? ??(??, ??? ?? ??? ?? ??? ??)? ??? ??? ? ??
?? ???? ?? - ?? ??
?? 2
??
P260, P314, P501
??????:
P201 ?? ? ?? ???? ?????.
P202 ?? ?? ?? ??? ?? ???? ??? ???? ???.
P260 ??·?·??·???·??·...·????? ???? ???.
P270 ? ??? ??? ??? ???, ???? ???? ???.
P281 ???? ?? ???? ?????
P301+P312 ??? ???? ??? ????(??)? ??? ????.
P308+P313 ?? ?? ??? ???? ???? ??· ??? ????.
P330 ?? ?????.
P403 ??? ? ?? ?? ?????.
NFPA 704
?? ??? C??? ??, ??, ??
??? ??
white or colourless odourless crystals
??
Cesium sulfate is the basic raw material for the preparation of various cesium salts, and can be used in trace analysis of aluminum and berkelium analysis reagent. It is often used as a liquid medium for density gradient centrifugation to separate and extract nucleic acids, suborganelles and plasmids
[4] .
??
Cesium sulfate is used to prepare dense aqueous solutions for use in isopycnic centrifugation. It is also used for crystal growing purposes.
Purification Methods
Crystallise it from water (0.5mL/g) by adding ethanol and cooling.
?? ??? ?? ?? ? ???
???
?? ??
?? ??? ?? ??
???( 329)?? ??
Belgium 1
China 255
Europe 3
France 1
Germany 4
India 12
Japan 5
South Korea 1
Switzerland 1
United Kingdom 7
United States 39
Global 329
