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CAS No 7787-49-7 , beryllium fluoride

  • Name: beryllium fluoride
  • Synonyms: beryllium fluoride;-;
  • CAS Registry Number:
  • Transport: UN1566
  • Boiling Point: 1175
  • Density: 1.98
  • Safety Statements: R25:Toxicifswallowed.;R26:Verytoxicbyinhalation.;R36/37/38:Irritatingtoeyes,respiratorysystemandskin.;R43:Maycausesensitizationbyskincontact.;R48/23:Toxic:dangerofseriousdamagetohealthbyprolongedexposurethroughinhalation.;R49:Maycausecancerbyinhalation.;R51/53:Toxictoaquaticorganisms,maycauselong-termadverseeffectsintheaquaticenvironment.;
  • Hazard Symbols: T+:Verytoxic;N:Dangerousfortheenvironment;
  • EINECS: 232-118-5
  • Molecular Weight: 47.00
  • InChI: InChI=1/Be.2FH/h;2*1H/q+2;;/p-2
  • Risk Statements: S45:Incaseofaccidentofifyoufeelunwell,seekmedicaladviceimmediately(showthelabelwherepossible).;S53:Avoidexposure-obtainspecialinstructionsbeforeuse.;S61:Avoidreleasetotheenvironment.Refertospecialinstructions/Safetydatasheets.;
  • Molecular Formula: BeF2
  • Molecular Structure:CAS No:7787-49-7 beryllium fluoride

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References of beryllium fluoride
Title: Beryllium Fluoride
CAS Registry Number: 7787-49-7
Molecular Formula: BeF2
Molecular Weight: 47.01
Percent Composition: Be 19.17%, F 80.83%
Literature References: Prepd by heating ammonium fluoroberyllate (NH4)2BeF4: Lebeau, Compt. Rend. 126, 1418 (1898); Kwasnik in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 231. Review of prepn and properties of beryllium halides: Bell, Adv. Inorg. Chem. Radiochem. 14, 255-332 (1972).
Properties: Glassy hygroscopic mass (tetragonal system). True mp 555°; becomes free-flowing about 800°. Sublimes at 1036° under 1 mm press. in the presence of beryllium. d425 1.986. Very freely sol in water; sparingly sol in alc; more sol in a mixture of alc and ether; insol in anhydr HF.
Melting point: True mp 555°
Density: d425 1.986
CAUTION: Beryllium and beryllium compounds are listed as known human carcinogens: Report on Carcinogens, Eleventh Edition (PB2005-104914, 2004) p III-32.
Use: Manuf of Be and Be alloys; manuf of glass; in nuclear reactors.