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Sodium Tetraborate, 30 g

Ages 10+
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Sodium tetraborate (Borax) is an organic compound with the formula Na2B4O7. Borax powder is a naturally occurring mineral with many uses. Use it to make a bath bomb, a bouncy ball, or mix it with white glue to make slime! Read More

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Borax powder (sodium tetraborate) is a naturally occurring mineral with many uses. An organic compound, Borax is in detergents, cosmetics, and enamels, and many parents and teachers use it to make slime or other science projects! This borax powder dissolves in water to make a sodium tetraborate solution.

If you're looking for a larger amount, see Sodium Tetraborate, 100 g.

Science Projects Using Borax:

Formula Na2B4O7•10H2
Formula Weight 381.367 
Grade Reagent 
Form Powder 
Density 1.73 g/cm³  
CAS Number 1303-96-4 
DOT Classification Non-Regulated 
Storage Code Green 
Common Uses Used in detergents, cosmetics, various science projects (i.e. making slime), etc. 
Melting Point  62°C (144°F) 
Boiling Point Data not available 
Hazard Statements Eye Irritation; Reproductive Toxicity 


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