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Sodium Tetrahydroborate CAS 16940-66-2

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CAS Number: 16940-66-2
Chemical Formula: NaBH4
NaBH4 Molecular Weight: 37.83 g/mol

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Sodium Tetrahydroborate CAS 16940-66-2 Manufacturer and Supplier

Sodium Tetrahydroborate, also known as sodium borohydride or NaBH4, is an inorganic compound with the chemical formula NaBH4. Here is some basic information about Sodium Tetrahydroborate:
CAS Number: 16940-66-2
Chemical Formula: NaBH4
Molar Mass: 37.83 g/mol
Appearance: Sodium Tetrahydroborate is typically a white crystalline solid.
Density: The density of NaBH4 is approximately 1.074 g/cm³.
Melting Point: Sodium Tetrahydroborate has a melting point of around 400 °C (752 °F).
Solubility: It is highly soluble in water, and the solution is alkaline.

Sodium Tetrahydroborate Production

Sodium Tetrahydroborate (NaBH4) is typically produced through the reaction between sodium borohydride and sodium hydroxide, as depicted below:
NaBH4 + NaOH = Na2B4O7 + 4H2.

The resulting compound, sodium borate (Na2B4O7), is a byproduct of the reaction. The hydrogen gas (H2) produced during the reaction can be captured and used in various applications.

The production process typically includes several steps:
1. Preparation of Sodium Borohydride (NaBH4): Synthesis of Sodium Borohydride (NaBH4) can be accomplished through reacting sodium hydride with trimethyl borate or boron trifluoride etherate in an organic solvent such as tetrahydrofuran (THF). The reaction yields NaBH4, which can then be isolated and purified for use.
2. Reaction With Sodium Hydroxide (NaOH): Once sodium borohydride has been synthesized, it must then be combined with sodium hydroxide (NaOH), using either water or methanol as an appropriate solvent, and allowed to undergo reaction in an acidic environment such as pH 7.4. This results in the production of sodium borate (Na2B4O7) as well as hydrogen gas (H2).
3. Purification and Drying: Once mixed, the solution should be filtered or centrifuged to separate the solid sodium borate from its solution form. Once separated, sodium borate may be further purified if necessary, while excess sodium hydroxide and excess sodium borohydride in its formative stage should be recycled or treated appropriately.

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