Beryllium acetate

from Wikipedia, the free encyclopedia
Structural formula
Beryllium ion 2 Acetate ion
General
Surname Beryllium acetate
other names

Beryllium diacetate

Molecular formula C 4 H 6 BeO 4
External identifiers / databases
CAS number 543-81-7
EC number 208-850-6
ECHA InfoCard 100.008.046
PubChem 10981
Wikidata Q829291
properties
Molar mass 127.10 g mol −1
Physical state

firmly

Melting point

> 60 ° C (decomposition)

solubility
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
06 - Toxic or very toxic 08 - Dangerous to health 09 - Dangerous for the environment

danger

H and P phrases H: 301-330-315-317-319-335-350i-372-411
P: 201-260-273-280-284-301 + 310
Toxicological data

22.5 mg kg −1 ( LD 50ratip )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Beryllium acetate is a chemical compound from the group of beryllium compounds and acetates with the constitutional formula Be (CH 3 COO) 2 .

Extraction and presentation

Beryllium, by reaction of Berylliumoxidacetat in glacial acetic acid with acetyl chloride are obtained. Beryllium oxide acetate is made by reacting anhydrous beryllium chloride and acetic anhydride .

properties

Beryllium is a non-combustible solid which is during the slow heating from 60 - 180 ° C. - 100 ° C, during rapid heating from 150 decomposed . It releases acetic anhydride slowly and quickly when heated and turns into beryllium oxide acetate, which sublimates.

When heated rapidly, it partially decomposes into acetic anhydride and beryllium oxide .

It is hardly attacked by cold water, but hydrated in hot water.

Related links

Individual evidence

  1. a b c d e Entry on beryllium acetate in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
  2. ^ A b c C. L. Parsons: The Chemistry and Literature of Beryllium. Chemical Publishing, Easton 1909, OCLC 4328587 , p. 40. (full text)
  3. Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the indicated labeling it falls under the group entry beryllium compounds with the exception of aluminum beryllium silicates, and with those specified elsewhere in this Annex in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  4. ^ Environmental Health Criteria (EHC) for beryllium , accessed November 29, 2014.
  5. Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 899.
  6. a b c Kenneth A. Walsh: Beryllium chemistry and processing. ASM International, 2009, ISBN 978-0-87170-721-5 , pp. 123f. ( limited preview in Google Book search).
  7. ^ T. Moeller, AJ Cohen, E. Marvell: Basic Beryllium Acetate and Propionate. In: Inorganic Syntheses. 1950, Volume 3, pp. 4-11. doi : 10.1002 / 9780470132340.ch2