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di-Sodium tetraborate, 2.5 kg

≥99 %, anhydrous, extra pure
Icon_EVE-EUD Please consider that this product might be liable to some legal sanctions as for example to obtain an end user declaration or the prohibition of some applications. For details please do contact your counterpart in our sales department!
Examples of effect: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
Examples of effect: Have an allergenic effect, carcinogenic, mutagenic, toxic to reproduction and cause developmental toxicity (reprotoxic) or damage to organs Safety: You must be well-informed before starting work with these substances; wear protective clothing and gloves, eye protection and mask or breathing protection.
i causes serious eye irritation, may damage fertility. May damage the unborn child
P201 P308+P313
i obtain special instructions before use, IF exposed or concerned: Get medical advice/attention
Pack Qty.
Empirical formula Na2B4O7
Molar mass (M) 201,22 g/mol
Density (D) 2,354 g/cm³
Boiling point (bp) 1575 °C
Melting point (mp) 742 °C
CAS No. 1330-43-4
EG-Nr. 215-540-4

For qualitative analysis, decomposition reagent in organic and inorganic chemistry.

€78.40/Pack Qty. 

excl. VAT. | 2.5 kg per Pack Qty.

Art. No. 4403.4

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di-Sodium tetraborate
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Art. No. Pack Qty. Pack. Price Quantity
4403.1 250 g plastic


4403.2 500 g plastic


4403.3 1 kg plastic


4403.4 2.5 kg plastic


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Certificates of Analysis

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The following analysis certificates have been found:

Type analysis

Assay (acidim.)≥99,0 %
Water content≤1,0 %
Sulphate (SO4)≤0,015 %
Iron (Fe)≤0,004 %