CAS 1330-43-4 Sodium tetraborate - Materials / Alfa Chemistry

NAVIGATION

Sodium tetraborate

PRICE INQUIRY

Catalog Number

ACM1330434-1

CAS Number

1330-43-4

Product Name

Sodium tetraborate

Structure

Category

Electrolytes

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, also known as borax or sodium borate, is a versatile boron compound that comes as a white crystalline powder or granules. It serves multiple purposes across various industries due to its distinctive properties. In the household, it is a key component in many detergents, aiding in the cleaning process. In ceramics and glassmaking, it is mixed into enamel glazes to enhance durability and finish. It plays a vital role in biochemistry for buffering solutions, ensuring stability in various reactions. Additionally, sodium tetraborate is valued as a fire retardant and as an anti-fungal agent in fiberglass materials. It has a notable presence in metallurgy as a flux, and it contributes to safety as a neutron-capture shield for radioactive sources. In the culinary sphere, it can be used as a texturing agent, and in agriculture, it addresses boron deficiencies in soils. Furthermore, it is employed for long-term nonselective weed control, particularly in industrial and power line areas, often combined with other herbicides. This multifaceted substance continues to be an essential ingredient in both commercial and industrial applications.

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)

If you have any other questions or need other size, please get a quote.