Beryllium sulfate

Beryllium sulfate
Identifiers
CAS Number	13510-49-1 ; 7787-56-6 (tetrahydrate) ;
3D model (JSmol)	anhydrous: Interactive image; tetrahydrate: Interactive image;
ChEBI	CHEBI:53473 ;
ChemSpider	24291 ;
ECHA InfoCard	100.033.478
EC Number	236-842-2;
PubChem CID	26077;
RTECS number	DS4800000;
UNII	01UQ1KPC7E ; 2TYK3LF8ZN (tetrahydrate) ;
CompTox Dashboard (EPA)	DTXSID0020159 ;
	InChI InChI=1S/Be.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 Key: KQHXBDOEECKORE-UHFFFAOYSA-L ; InChI=1/Be.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 Key: KQHXBDOEECKORE-NUQVWONBAA;
	SMILES anhydrous: [Be+2].[O-]S([O-])(=O)=O; tetrahydrate: [OH2+][Be-2]([OH2+])([OH2+])[OH2+].[O-]S([O-])(=O)=O;
Properties
Chemical formula	BeSO4
Molar mass	105.075 g/mol (anhydrous); 177.136 g/mol (tetrahydrate)
Appearance	white solid
Odor	odorless
Density	2.44 g/cm3 (anhydrous); 1.71 g/cm3 (tetrahydrate)
Melting point	110 °C (230 °F; 383 K) (tetrahydrate, −2H2O); 400 °C (dihydrate, dehydr.); 550–600 decomposes
Boiling point	2,500 °C (4,530 °F; 2,770 K) (anhydrate) ; 580 °C (tetrahydrate)
Solubility in water	36.2 g/100 mL (0 °C) ; 40.0 g/100 mL (20 °C) ; 54.3 g/100 mL (60 °C)
Solubility	insoluble in alcohol
Refractive index (nD)	1.4374 (tetrahydrate)
Thermochemistry
Std molar; entropy (S⦵298)	90 J/mol K
Std enthalpy of; formation (ΔfH⦵298)	−1197 kJ/mol
Gibbs free energy (ΔfG⦵)	−1088 kJ/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H315, H317, H319, H330, H335, H350, H372, H411
Flash point	Non-flammable
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	82 mg/kg (rat, oral); 80 mg/kg (mouse, oral)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 0.002 mg/m3; C 0.005 mg/m3 (30 minutes), with a maximum peak of 0.025 mg/m3 (as Be)
REL (Recommended)	Ca C 0.0005 mg/m3 (as Be)
IDLH (Immediate danger)	Ca [4 mg/m3 (as Be)]
Safety data sheet (SDS)	ICSC 1351
Related compounds
Other cations	Magnesium sulfate; Calcium sulfate; Strontium sulfate; Barium sulfate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Beryllium sulfate normally encountered as the tetrahydrate, [Be(H₂O)₄]SO₄ is a white crystalline solid. It was first isolated in 1815 by Jons Jakob Berzelius. Beryllium sulfate may be prepared by treating an aqueous solution of many beryllium salts with sulfuric acid, followed by evaporation of the solution and crystallization. The hydrated product may be converted to anhydrous salt by heating at 400 °C.

Identifiers


CAS Number	13510-49-1^Y 7787-56-6 (tetrahydrate)^Y
3D model (JSmol)	anhydrous: Interactive image tetrahydrate: Interactive image
ChEBI	CHEBI:53473^Y
ChemSpider	24291^Y
ECHA InfoCard	100.033.478
EC Number	236-842-2
PubChem CID	26077
RTECS number	DS4800000
UNII	01UQ1KPC7E^Y 2TYK3LF8ZN (tetrahydrate)^Y
CompTox Dashboard (EPA)	DTXSID0020159
InChI InChI=1S/Be.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2^Y Key: KQHXBDOEECKORE-UHFFFAOYSA-L^Y InChI=1/Be.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 Key: KQHXBDOEECKORE-NUQVWONBAA
SMILES anhydrous: [Be+2].[O-]S([O-])(=O)=O tetrahydrate: [OH2+][Be-2]([OH2+])([OH2+])[OH2+].[O-]S([O-])(=O)=O
Properties
Chemical formula	BeSO₄
Molar mass	105.075 g/mol (anhydrous) 177.136 g/mol (tetrahydrate)
Appearance	white solid
Odor	odorless
Density	2.44 g/cm³ (anhydrous) 1.71 g/cm³ (tetrahydrate)
Melting point	110 °C (230 °F; 383 K) (tetrahydrate, −2H₂O) 400 °C (dihydrate, dehydr.) 550–600 decomposes
Boiling point	2,500 °C (4,530 °F; 2,770 K) (anhydrate) 580 °C (tetrahydrate)
Solubility in water	36.2 g/100 mL (0 °C) 40.0 g/100 mL (20 °C) 54.3 g/100 mL (60 °C)
Solubility	insoluble in alcohol
Refractive index (n_D)	1.4374 (tetrahydrate)
Thermochemistry
Std molar entropy (S^⦵₂₉₈)	90 J/mol K
Std enthalpy of formation (Δ_fH^⦵₂₉₈)	−1197 kJ/mol
Gibbs free energy (Δ_fG^⦵)	−1088 kJ/mol
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H301, H315, H317, H319, H330, H335, H350, H372, H411
Flash point	Non-flammable
Lethal dose or concentration (LD, LC):
LD₅₀ (median dose)	82 mg/kg (rat, oral) 80 mg/kg (mouse, oral)
NIOSH (US health exposure limits):
PEL (Permissible)	TWA 0.002 mg/m³ C 0.005 mg/m³ (30 minutes), with a maximum peak of 0.025 mg/m³ (as Be)
REL (Recommended)	Ca C 0.0005 mg/m³ (as Be)
IDLH (Immediate danger)	Ca [4 mg/m³ (as Be)]
Safety data sheet (SDS)	ICSC 1351
Related compounds
Other cations	Magnesium sulfate Calcium sulfate Strontium sulfate Barium sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references