CAS 1330-43-4 Sodium Tetraborate, Anhydrous - Materials / Alfa Chemistry

NAVIGATION

Sodium Tetraborate, Anhydrous

PRICE INQUIRY

Catalog Number

ACM1330434-2

CAS Number

1330-43-4

Product Name

Sodium Tetraborate, Anhydrous

Category

Ceramic Materials

Description

DryPowder; DryPowder, PelletsLargeCrystals; Liquid; OtherSolid;Powder or glass-like plates becoming opaque on exposure to air; slowly soluble in water;WHITE CRYSTALS OR CRYSTALLINE POWDER.;COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS OR POWDER. TURNS OPAQUE ON EXPOSURE TO AIR.;White to gray, odorless powder.;White to gray, odorless powder. [herbicide] [Note: Becomes opaque on exposure to air.]

IUPAC Name

disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane

Molecular Weight

201.2g/mol

Molecular Formula

Na2B4O7; Na2B4O7?10H₂O;B4O7Na2. 10H₂O;Na2B4O7;Na2*2B2O3;B4Na2O7

Canonical SMILES

B1(OB2OB(OB(O1)O2)[O-])[O-].[Na+].[Na+]

InChI

InChI=1S/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1

InChI Key

UQGFMSUEHSUPRD-UHFFFAOYSA-N

Boiling Point

1,575 °C (decomposes);2867°F (decomposes);2867°F (Decomposes)

Melting Point

Between 171 °C and 175 °C with decomposition;743 °C;742 °C;1366°F;1366°F

Density

2.367;Relative density (water = 1): 1.7;Relative density (water = 1): 2.4;2.37;2.37

Solubility

Water solubility: 3.1% at 25 °C; 2.5% at 20 °C;Solubility at 25 °C: 16.7% in methanol; 30% in ethylene glycol; 40.6 g/L in formamide;Solubility in water, g/100ml at 20 °C: 5.1;Solubility in water, g/100ml at 20 °C: 2.56;4%

Application

Sodium Tetraborate, Anhydrous serves a wide range of purposes due to its versatility as an important boron compound. This white salt is a vital component in many products and processes. It is extensively used in the production of detergents and cosmetics, as well as in creating enamel glazes. In the field of biochemistry, it plays a crucial role in making buffer solutions. Its properties as a fire retardant and anti-fungal compound make it valuable in fiberglass applications. It is utilized as a flux in metallurgy, and as a neutron-capture shield for radioactive sources, highlighting its importance in industrial applications. Additionally, Sodium Tetraborate acts as a texturing agent in cooking and serves as a precursor for other boron compounds, underscoring its multifaceted applications. Its role in agriculture is significant as well, where it is finely ground for use as a fertilizer to address boron deficiency, and in industrial weed control, it is applied for long-term solutions in conjunction with other herbicides.

Color/Form

Colorless glassy solid; hygroscopic;Light grey, vitreous granules;White to gray powder; becomes opaque on exposure to air

Complexity

121

Corrosivity

Solutions are not a corrosion hazard to ferrous metals

Covalently-Bonded Unit Count

EC Number

215-540-4;215-540-4;235-541-3

Exact Mass

201.981162g/mol

Formal Charge

Heavy Atom Count

ICSC Number

0567;1229

MeSH Entry Terms

disodium borate, heptahydrate;disodium borate, monohydrate;Komex;monosodium metaborate;sodium borate;sodium borate (NaBO2);sodium diborate;sodium meta borate;sodium metaborate;sodium tetraborate

Monoisotopic Mass

201.981162g/mol

Odor

Odorless

Other Experimental

Heat of formation (glass): -32566 MJ/mol; heat of formation (alpha crystalline form): -3.2767 MJ/mol; heat of solution: -213.8 kJ/kg; heat of fusion: 81.2 kJ/mol;Molar heat capacity: 186.8 J/K mol at 25 °C;White crystals or powder, odorless; density: 1.73 20 °C/4 °C; loses water of crystallization when heated, with melting between 75 and 320 °C; fuses to a glassy mass at red heat (borax glass); effloresces slightly in warm dry air; soluble in water, glycerol; insoluble in alcohol /Sodium tetraborate decahydrate/;White, free-flowing crystals, hygroscopic; forms partial hydrate in damp air; mp: 741 °C; density: 2.367; slightly soluble in cold water /Anhydrous sodium tetraborate/;Hygroscopic

Refractive Index

INDEX OF REFRACTION: 1.5010

Rotatable Bond Count

Stability

.../Becomes/ opaque on exposure to air. /Anhydrous/;Forms partial hydrate in damp air.

UNII

8191EN8ZMD

Vapor Pressure

Negligible at 20 °C;0 mmHg (approx);0 mmHg (approx)

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