CAS No 1313-85-5 , disodium

Name: disodium
Synonyms: Disodium selenide; disodium selenium(2-); Sodium selenide (Na2Se); Disodium monoselenide;selenium(2-); disodium selandiide; EINECS 215-212-0; 1313-85-5;disodium;
CAS Registry Number:1313-85-5
Transport: UN3134
Flash Point: °C
Boiling Point: °Cat760mmHg
Density: g/cm³
Safety Statements: Poison by intraperitoneal route. Mutation data reported. When heated to decomposition it emits toxic fumes of Se and Na2O. See also SELENIUM COMPOUNDS.
Flash Point: °C
EINECS: 215-212-0
Molecular Weight: 124.939539
InchiKey: VPQBLCVGUWPDHV-UHFFFAOYSA-N
InChI: InChI=1S/2Na.Se/q2*+1;-2
Molecular Formula: Na₂Se
Molecular Structure:

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References of disodium

Title: Sodium Selenide
CAS Registry Number: 1313-85-5
Molecular Formula: Na2Se
Molecular Weight: 124.94
Percent Composition: Na 36.80%, Se 63.20%
Literature References: Prepd by adding selenium to a soln of sodium in liquid ammonia: Hugot, Compt. Rend. 129, 299 (1899); Ann. Chim. Phys. [7] 21, 34 (1900); Feher in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 421.
Properties: Amorphous crystals. d10 2.625. mp >875°. Turns red on exposure to air and deliquesces. Dec in water. Insol in ammonia.
Melting point: mp >875°
Density: d10 2.625

Derivative Type: Hemienneahydrate
Properties: Fine needles. Turns red on exposure to air and deliquesces.

Derivative Type: Decahydrate
Properties: Needles. Turns red and then brown on exposure to air.

Derivative Type: Hexadecahydrate
Properties: Prisms. mp 40°. Dec in air to sodium carbonate, selenium and a small amount of sodium selenide.
Melting point: mp 40°