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Na2B4O7 · 5H2O
Sodium Tetraborate Pentahydrate
Borax 5 Mol
Neobor can be combined with Optibor® to control the sodium-to-boron ratio in certain glass manufacturing.
In combination with U.S. Borax boric acid, Neobor is particularly effective in reducing the flammability of cellulosic materials. By changing the oxidation reactions in the combustion of cellulosic materials, these borate products cause the formation of carbon residue, which is a barrier to combustion and diverts the decomposition products that would otherwise smolder.
When combined with polyhydroxyl compounds, Neobor can be used for viscosity control in detergents and is often added to formulations to clean hard surfaces such as metals, glass, and toilet bowls.
Borates improve fit, luster, durability, and chemical resistance.
Borates’ cleaning uses go beyond clothing into the industrial workplace.
Durable borosilicate glass resists heat, chemicals, scratches, and shock.
Borates help protect ferrous metals from oxidation and harden steel.
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Molecular weight: 291.30
Melting point: 743°C
Specific gravity: 1.88
Appearance: white crystalline granules or powder
Solubility: 4.53% by weight in saturated solution (water) at room temperature; other solutions (methanol, propylene glycol) can be found in the product data sheet.
Stability: Neobor TG is a stable crystalline product that does not change chemically under normal storage conditions. If wetted, it reacts exothermically with the water, forming borax decahydrate. Prevent exposure of the product to moisture and avoid wide fluctuations in temperature and humidity, which can also cause the product to cake. Maintain the integrity of the packaging to help avoid these issues.
Bulk density: 60 lb/ft3 (952 kg/m3)
Angle of repose: 35°
Boric oxide, B2O3: 47.80%
Sodium oxide, Na2O: 21.28%
Water of crystallization, H2O: 30.92%
Anhydrous equivalent: 69.08%
Containers: Products may be available in bulk, IBCs, or small bags
Neobor is the most stable of the three sodium borates and is ideally suited to bulk transfer. It shows little tendency to cake, except after prolonged storage or severe wetting by rain or other substantial water ingress.
Dissolved in water, Neobor TG hydrolyzes to create a mildly alkaline solution capable of neutralizing acids. It also combines with strong alkalis to form compounds of a lower pH. The relatively constant pH of Neobor solutions makes it an excellent buffering agent.
By reducing glass viscosity, the addition of Neobor TG progressively lowers both the melting and fiberizing temperatures of insulation fiberglass. By increasing aqueous durability, it improves the insulation’s resistance to atmospheric corrosion.
Neobor TG’s sieve specification is U.S. sieve No. 8, with a mesh size of 2.36 mm and a retained guarantee of ≤ 1.0%.
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