Industrial Boric Acid Powder ($\text{H}_3\text{BO}_3$) is a high-purity, white crystalline powder widely utilized across manufacturing, metallurgical, and chemical formulation industries. Known for its heat-resistance, fluxing abilities, and flame-retardant properties, it serves as a versatile raw material in various industrial applications.
Chemical & Physical Properties
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Chemical Name: Boric Acid (Orthoboric Acid)
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Molecular Formula: H3BO3
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Molecular Weight: 61.83 g/mol
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CAS Number: 10043-35-3
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Purity / Assay: 99.0% 99.5% Minimum
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Appearance: Free-flowing white powder or micro-crystals
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Melting Point: 170.9 C
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Boiling Point: 300 C (Decomposes)
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Density: 1.435 g/cm
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Solubility: Soluble in water, glycerol, and alcohol
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pH Level: 3.8 5.1 (slightly acidic in aqueous solution)
Key Features & Benefits
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Thermal Stability: Reduces thermal expansion and increases heat resistance in glass and ceramic glazes.
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Flame Retardancy: Absorbs heat through endothermic decomposition, releasing water vapor to suppress combustion.
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Chemical Buffering: Maintains stable pH levels in industrial electroplating and water treatment solutions.
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High Purity: Meets industrial specifications for trace impurities, ensuring minimal interference in catalytic or metallurgical processes.
Industrial Applications
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Glass & Fiberglass: Used as a flux to lower melting temperatures and strengthen monofilament/textile fiberglass, heat-resistant glass, and LCD displays.
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Ceramics & Enamels: Improves glaze adherence, surface finish, and thermal durability.
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Wood Preservation & Textiles: Formulated into flame retardants and timber treatments to prevent fungal decay and pest damage.
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Chemical Synthesis & Metallurgy: Functions as a welding/soldering flux, dry lubricant additive, and electroplating bath buffer.
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