Monday, November 24, 2014

properties of Ruthenium(IV) oxide hydrate


CAS  : 32740-79-7
name:Ruthenium(IV) oxide hydrate
Molecular Weight: 133.07 (anhydrous basis)
Molecular Formula: RuO2•xH2O
Appearance: Powder
Physical State: Solid
Storage: Store at room temperature
Solubility: Insoluble in water. Soluble in HCl

Monday, November 17, 2014

Brief introduction of Palladium(II) chloride


name: Palladium(II) chloride
CAS : 7647-10-1
Purity: ≥99%
Molecular Weight: 177.33
Molecular Formula: Cl2Pd
This is used in the synthesis of semiconducting metal-containing polymers where the polypyrrole backbone has a conformational energy minimum and is nearly planar.
Appearance: Powder
Physical State: Solid
Solubility: Soluble in water, acetone, alcohol, hydrobromic acid, and hydrochloric acid.
Storage: Store at room temperature
Melting Point: 678-680 °C (lit.)
Boiling Point: 515.63 °C (Predicted)
Density: 4 g/cm3 at 25 °C

Wednesday, November 12, 2014

Application of cesium carbonate


cesium carbonate is a white apparent solid compound. Caesium carbonate has a top solubility in arctic solvents such as water, booze and DMF. Its solubility is college in amoebic solvents compared to added carbonates like potassium and sodium carbonates, although it charcoal absolutely baffling in added amoebic solvents such as toluene, p-xylene, and chlorobenzene. This admixture is acclimated in amoebic amalgam as a base. It aswell appears to accept applications in action conversion.
Promotes the able O-alkylation of alcohols to anatomy alloyed alkyl carbonates.
An adorable abject that finds added and added applications in coupling chemistry.1
Catalyst for:
Aerobic blaze of primary alcohols2
1,4-addition3
Reagent for:
Synthesis of phosphazene derivatives4
Constrictive bounden interactions5
Intramolecular C-N cantankerous coupling reactions6
Dehydohalogenative polycondensation7

Monday, November 10, 2014

Property of Dierbium trioxide


Formula as about written: Er2O3
Hill arrangement formula: Er2O3
CAS anthology number: [12061-16-4]
Formula weight: 382.518
Class: oxide
Synonyms:
dierbium trioxide
erbium(III) oxide
erbium oxide
Colour: pink
Appearance: solid
Melting point: 2418°C
Boiling point:
Density: 8640 kg m-3

Wednesday, November 5, 2014

Brief introduction of Europium (III) acetate hydrate


name:Europium (III) acetate hydrate
CAS Number: 62667-64-5
MDL Number: MFCD00150115
Molecular Formula: C6H9EuO6
Molecular Weight: 329.10
Chemical Formula: Eu(OOCCH3)3•XH2O
Color and Form: white xtl.
EINECS Number: none
Chemical Family: metal acetate salt
Synonym: Europium triacetate; Acetic acid, europium(+3) salt, hydrate

Monday, November 3, 2014

what is the Praseodymium trifluoride?


The praseodymium in praseodymium trifluoride formally is in the oxidation state 3.
name:Praseodymium trifluoride
Formula as often written: PrF3
Hill system formula: F3Pr1
CAS    : [13709-46-1]
Formula weight: 197.903
Class: fluoride
Synonyms:
praseodymium trifluoride
praseodymium(III) fluoride
praseodymium fluoride
Physical properties
Colour: green
Appearance: crystalline solid
Melting point: 1395°C
Density: 6300 kg m-3

Wednesday, October 29, 2014

Introduction and Purpose of Yttrium


Yttrium is almost always found combined with the lanthanides in rare earth minerals and is never found in nature as a free element.
The most important use of yttrium is in making phosphors, such as the red ones used in television set cathode ray tube (CRT) displays and in LEDs. It is also used in the production of electrodes, electrolytes, electronic filters, lasers and superconductors; various medical applications; and the tracing of various materials to enhance their properties. Yttrium has no known biological role, and exposure to yttrium compounds can cause lung disease in humans.
Although metallic yttrium is not widely used, several of its compounds are. Yttrium oxide (Y2O3) and yttrium orthovanadate (YVO4) are both combined with europium to produce the red phosphor used in color televisions. Garnets made from yttrium and iron (Y3Fe5O12) are used as microwave filters in microwave communications equipment. Garnets made from yttrium and aluminum (Y3Al5O12) are used in jewelry as simulated diamond.