Cesium sulfate
Basic information
- CAS
10294-54-9- Standard SMILES
O=S(=O)([O-])[O-].[Cs+].[Cs+]- InChIKey
FLJPGEWQYJVDPF-UHFFFAOYSA-L- Molecular formula
- Cs2O4S
- Average molar mass
- 361.88 g/mol
- Monoisotopic mass
- 361.7626336
Overview
used in forming density gradients
Names & identifiers
- Preferred name
- Cesium sulfate
- IUPAC
- dicesium;sulfate
- English name
- Cesium sulfate
- Molecular formula
- Cs2O4S
- Molecular weight
- 361.87
Names & synonyms
CESIUM SULFATE10294-54-9Dicesium sulfateSulfuric acid, dicesium saltSulfuric acid, cesium salt (1:2)8D6R91CS62DTXSID10883109RefChem:124643DTXCID801022685233-662-6Caesium sulphateCaesium sulfate
Show more names
CaesiumsulfatedicesiumsulfateCesiumSulphateGr
dicesium;sulfateCesium sulphateCs2SO4dicesiumMFCD00010959Cs2O4SDicaesium sulfateEINECS 233-662-6
Database identifiers
- CAS
10294-54-9- PubChem CID
- 25137
- DTXSID
DTXSID10883109- UNII
- 8D6R91CS62
- EC Number
- 233-662-6
- Nikkaji
- J43.773E
Properties
Computed structural properties
- Topological polar surface area
- 88.6 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 7
- Formal charge
- 0
- Complexity
- 62.2
Experimental & physicochemical properties
Chemical ClassesMetals -> Metals, Inorganic Compounds
Physical DescriptionSolid; [Merck Index] White odorless powder; [Alfa Aesar MSDS]
Physicochemical properties
- Melting point
- 1019 °C · 1019 °C (lit.)
- Boiling point
- 1900 °C · 1900 °C
- Density
- 4.243 g/mL · 4.243 g/mL at 25 °C (lit.)
- storage temp.
- Inert atmosphere,Room Temperature
- solubility
- 2 O: · H2O: 2 M at 20 °C, clear, colorless
- form
- Powder
- Specific Gravity
- 4.243 · 4.243
- color
- White
- PH Range
- 6 · 6.0 - 7.5
- PH
- 5.8 · 5.8~6.8 (50g/L, 25℃)
- Water Solubility
- Very soluble in water. Slightly soluble in alcohol, acetone, pyridine.
- Specific Heat Capacity
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 18.5% (33 of 178) of reports.
Warning
H302 (81.5%): Harmful if swallowed [Warning Acute toxicity, oral]
P203, P260, P264, P270, P280, P301+P317, P318, P319, P330, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 178 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Sulfuric acid, dicesium salt
REACH registered substance: Caesium sulphate (EC: 233-662-6)
Sulfuric acid, dicaesium salt: Does not have an individual approval but may be used under an appropriate group standard
Other Safety InformationEvaluation - Cesium salts
Hazards SummaryCauses convulsions, BP elevation, and other changes in urine composition in intraperitoneal, subcutaneous, and intravenous lethal-dose studies of rats and mice; [RTECS] May cause irritation; [Alfa Aesar MSDS] See Cesium.
Hazard Classes and CategoriesAcute Tox. 4 (81.5%)
Safety data
- wgk
- 2
- tsca
- TSCA listed
- rtecs
- FL0800000
- hs_code
- 28332990
- risk_code
- 20/21
- Signal word
- Warning
Chemistry & industry
Uses & manufacturing
UsesUsed with vanadium or vanadium pentoxide as a catalyst for sulfur dioxide oxidation; [Merck Index] Used in forming density gradients. [ChemIDplus]
General Manufacturing InformationSulfuric acid, cesium salt (1:2): ACTIVE
Applications
DescriptionCesium sulfate is used for equilibrium density gradient centrifugation, one of the most useful tools for fractionation and characterization of macromolecules, such as DNA. Cesium sulfate can be used as catalyst, e.g. catalyst of cesium sulfate/vanadium pentoxide is used in abiabatic multibed reactors to lower inlet temperature and catalyst cesium sulfate/zeolite is used in a pilot plant scale process to synthesize 4-methyl thiazol.
UsesCesium sulfate is used to prepare dense aqueous solutions for use in isopycnic centrifugation. It is also used for crystal growing purposes.
UsesCesium 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].
UsesWith V or V2O5 as catalyst for SO2 oxidation.
Preparation methods
PreparationLepidolite is an important mineral resource for the preparation of lithium, rubidium and cesium[5]. And cesium can be collected from the leaching solution by the process of crystallization, roasting, dissolution and solvent extraction. After the leaching solution is cooled from 85 °C to 35 °C. The mixture is calcined at 900 °C after most of Cs+ is precipitated as CsAl(SO4)2.XH2O, and the calcined product is dissolved in water to obtain Cs+ mixed sulfuric acid solution[6]. After four-stage countercurrent extraction, obtain the mixed sulfuric acid solutionis. Cs+ (99.20%) was extracted and purified by 4-tert-butyl-2-(α-methylbenzyl) phenol (t-BAMBP). The organic phase dissolved with CS+ was scrubbing and stripped with sulfuric acid, and cesium sulfate products were obtained after crystallization.
Related reactions
0 records
No reaction records under the current filter.
Compound notes
Loading…