Borax pentahydrate

Borax pentahydrate

CAS No.: 12179-04-3
Molecular Formula: B4H10Na2O12
Molecular weight: 291.3
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product description

Borax Pentahydrate is a white crystalline or granular solid, soluble in water, with weak alkalinity. It features good stability, buffering properties and corrosion inhibition. It is widely used in glass manufacturing, ceramics, detergents, cosmetics, fertilizers, flame retardants and metal surface treatment.


Chemical Properties

PropertyValue
Density1.815
PSA138.42000
logP-2.42430
Solubility38 g/L at 20 °C in water
AppearanceWhite, odorless crystalline or free-flowing powder
Chemical PropertiesNoncombustible (an inherent fire retardant), bluish-gray or green, odorless crystalline powder or granules
ColorWhite, odorless crystalline or free-flowing powder
Physical FormWhite crystalline powder
Storage TemperatureStore at room temperature, keep dry and cool


Safety Information

PropertyValue
Occupational Exposure CategoryC
Occupational Exposure LimitTWA: 1 mg/m³


Product Usage

Borax pentahydrate is an important inorganic chemical raw material with a wide range of applications. In the manufacturing of fiberglass and optical glass, it serves as a flux, lowering melting temperatures and improving the heat resistance of the products. In ceramic glazes, it enhances surface gloss and hardness. In agriculture, it is a key micronutrient boron fertilizer used to correct boron deficiency in crops. Additionally, it is used in metalworking as a solid lubricant and antifreeze agent, in cosmetics as a water softener, and as a basic raw material for the production of other boron compounds.

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A1: Yes, our company holds a number of internationally recognized core certifications. All production and operation activities strictly follow international environmental, safety and quality standards, and each batch of products is accompanied by a compliance test report to meet the chemical industry requirements in different regions around the world.


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