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12230-71-6 - Barium hydroxide octahydrate, 97% - A12714 - Alfa Aesar

A12714 Barium hydroxide octahydrate, 97%

Codice CAS
12230-71-6
Sinonimi

Dimensioni Prezzo ($) Quantità Disponibilità
500g 34,30
2500g 133,90
10000g 368,10
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Barium hydroxide octahydrate, 97%

MDL
MFCD00149152
EINECS
241-234-5

Proprietà chimiche

Formula
H2BaO2•8H2O
Peso formula
315.48 (171.36anhy)
Punto di fusione
78°
Densità
2.18
Sensibilità
Air Sensitive
Solubilità
Soluble in water (72 mg/ml at 20°C), methanol, ethanol (slightly), and water (56 mg/ml at 15°C). Insoluble in acetone (practically)

Applicazioni

Barium hydroxide octahydrate has been used in the centromeric heterochromatin banding technnique and to synthesize BaTiO3. The form Barium hydroxide was reported to catalyze the rate of β elimination of phosphoserine residues. It is also used as a general purpose additive for lubricants and greases, sugar fabrication, manufacturing soaps, fat saponification and chemical synthesis of other barium compounds.

Note

Air Sensitive. Store in cool dry place in tightly closed container. With good ventilation. Store away from air and oxidizing agent.

Letteratura

Jay A. Young. Barium Hydroxide Octahydrate. J. Chem. Educ. 2006, 83(4), 539.

ngmar Persson; Magnus Sandström; Haruhiko Yokoyama. Structure of the Solvated Strontium and Barium Ions in Aqueous, Dimethyl Sulfoxide and Pyridine Solution, and Crystal Structure of Strontium and Barium Hydroxide Octahydrate. Zeitschrift für Naturforschung A. 1995, 50(1), 21-37.

Preferred base for the Horner-Wadsworth-Emmons reaction with sensitive aldehydes, such as in formation of complex (E)-enones in natural product synthesis: Synlett, 774 (1993).

Suzuki coupling of 4-iodopyridines with arylboronic acids is promoted by this base which has advantages for sterically hindered substrates: J. Organomet. Chem., 517, 25 (1996).

For a brief feature on uses of the reagent, see: Synlett, 1739 (2002).

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H314-H318-H302-H332

Causes severe skin burns and eye damage. Causes serious eye damage. Harmful if swallowed. Harmful if inhaled.

Dichiarazioni precauzionali: P260-P261-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,977
Classe di rischio
8
Gruppo di imballaggio
III
Codice tariffe armonizzato
2816.40
TSCA
Yes
RTECS
CQ9200000

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