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Thermo Scientific Chemicals
Calcium hydride, coarse powder, ca 92%
CAS: 7789-78-8 | CaH2
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化學識別
CAS7789-78-8
IUPAC Namecalcium dihydride
Molecular FormulaCaH2
InChI KeyFAQLAUHZSGTTLN-UHFFFAOYSA-N
SMILES[CaH2]
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規格
規格表
規格表Particle Size1 to 20 mm (approx.)
Appearance (Color)Pale grey to grey
FormPowder and granules
Elemental AnalysisCa ≥92%
Calcium hydride is used as an efficient drying agent for aprotic base-stable solvents like ethers and tertiary amines. It is a useful dehydrating agent in a synthesis of aldehyde enamines in high yield and purity.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Applications
Calcium chloride is used as an efficient drying agent for aprotic base-stable solvents like ethers and tertiary amines. It is a useful dehydrating agent in a synthesis of aldehyde enamines in high yield and purity.
Solubility
Soluble in water and alcohol. Insoluble in benzene.
Notes
Moisture sensitive. Reacts with water vigorously and liberates hydrogen gas. Incompatible with strong oxidizing agents, strong acids, halogens, water and alcohols.
Calcium chloride is used as an efficient drying agent for aprotic base-stable solvents like ethers and tertiary amines. It is a useful dehydrating agent in a synthesis of aldehyde enamines in high yield and purity.
Solubility
Soluble in water and alcohol. Insoluble in benzene.
Notes
Moisture sensitive. Reacts with water vigorously and liberates hydrogen gas. Incompatible with strong oxidizing agents, strong acids, halogens, water and alcohols.
RUO – Research Use Only
General References:
- Efficient drying agent for aprotic, base-stable solvents, particularly useful for ethers and tertiary amines.
- Has been used as a dehydrating agent in a synthesis of aldehyde enamines in high yield and purity: Synth. Commun., 24, 1541 (1994).
- Liu, Y.; Wang, X.; Liu, H.; Dong, Z.; Li, S.; Ge, H.; Yan, M. Investigation on the improved hydrolysis of aluminum-calcium hydride-salt mixture elaborated by ball milling. Energy 2015, 84, 714-721.
- Leich, V.; Spaniol, T. P.; Okuda, J. Formation of a Cationic Calcium Hydride Cluster with a Naked Triphenylsilyl Anion by Hydrogenolysis of Bis(triphenylsilyl)calcium. Inorg. Chem. 2015, 54 (10), 4927-4933.