Cookies disclaimer

I agree Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our website without changing the browser settings you grant us permission to store that information on your device.

7789-78-8 - Calcium hydride, coarse powder, ca 92% - A16242 - Alfa Aesar

A16242 Calcium hydride, coarse powder, ca 92%

CAS-Nummer
7789-78-8
Synonyme

Größe Preis ($) Menge Verfügbarkeit
50g 40,17
250g 158,00
1000g 490,50
Zum Warenkorb hinzufügen Zur Angebotsanfrage hinzufügen Artikel anzeigen

Calcium hydride, coarse powder, ca 92%

MDL
MFCD00010897
EINECS
232-189-2

Chemische Eigenschaften

Formel
CaH2
Molmasse
42.10
Schmelzpunkt
600° dec.
Dichte
1.900
Sensitivität
Moisture Sensitive
Löslichkeit
Soluble in water and alcohol. Insoluble in benzene.

Anwendungen

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.

Bemerkungen

Moisture sensitive. Reacts with water vigorously and liberates hydrogen gas. Incompatible with strong oxidizing agents, strong acids, halogens, water and alcohols.

Literaturverweise

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.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H260

In contact with water releases flammable gases which may ignite spontaneously.

Sicherheitshinweise: P231+P232-P280-P233-P370+P378c-P335+P334-P402+P404-P501a

Handle under inert gas. Protect from moisture. Wear protective gloves/protective clothing/eye protection/face protection. Keep container tightly closed. In case of fire: Use for extinction: CO2, sand, extinguishing powder. Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages. Store in a dry place. Store in a closed container. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,1672
Gefahrenklasse
4.3
Verpackungsgruppe
I
Harmonized Tariff Code
2850.00
TSCA
Yes

Empfohlen

Kürzlich angesehen

Chemikalien

Life science

Metalle und Stoffe

Katalysatoren

Forschungs- und Laborbedarf