What is Borax formula?
Na₂[B₄O₅(OH)₄]·8H₂O
Borax/Formula
What does PVA and sodium borate make?
A solution of polyvinyl alcohol (PVA) can be made into a slime by adding borax solution, which creates crosslinks between polymer chains. In this activity, some interesting properties of the slime are investigated.
How do you make a 4% borax solution?
Procedure:
- Create a 4% borax solution by measuring 1 cup (240mL) of water and add 1tsp (5ml) of borax powder.
- In a separate container, create a 50/50 glue/water solution. Measure out 1/2 cup of glue and add the same amount of water.
- Stir the glue mixture with the borax solution until it is compltely done. (
What is borax Class 11?
Borax is a compound consisting of an elementary substance called boron, united to oxygen and soda. Borax is a soft, colourless compound of Boron and can be dissolved in water. The main forms of borax are anhydrous and decahydrate salt and sometimes as a pentahydrate salt.
How do you make slime with borax and polyvinyl alcohol?
Procedure:
- Measure 2 tsp. of polyvinyl alcohol polymer solution into a cup.
- Add 1/4 teaspoon of Borax solution. Mix well with a wooden stick.
- Touch and try to pour the product.
- Working on waxed paper, roll the “slime” into a ball and try to bounce it.
- Let it sit for a while.
- Try to pull it apart quickly.
Is borax a crosslinker?
In this research, borax was introduced as a cross-linker in order to enhance stability and properties of the hydrogels prepared from water hyacinth fibers (WHFs), and effect of the borax contents on hydrogel properties was investigated.
What is the monomer in polyvinyl alcohol?
The primary raw material used in the manufacture of polyvinyl alcohol is vinyl acetate monomer. It is manufactured by the polymerization of vinyl acetate followed by partial hydrolysis.
What is a borax solution?
Borax, or sodium borate, is an alkaline mineral salt with a powdery white appearance. Borax is most famous as a laundry washing powder. Until not too long ago, the compound used to be the go-to solution for disinfection, whitening, and fighting mold and mildew.
What’s the ratio of borax to PVA solution?
The two solutions will be mixed in a 10:1 (PVA:borax) ratio. Add 50 mL of PVA solution to a 250 mL beaker. To this, add 5 mL of borax solution and mix vigorously with a wooden stirrer. A clear gel should form immediately. The viscosity of the gel can be altered by changing the ratio of PVA:borax.
What kind of borax to use in PVA polymer slime?
Borax, hydrated sodium tetraborate, (Na 2 B 4 O 7 .10H 2 O) – see CLEAPSS Hazcard HC014a. If a 4% aqueous solution of PVA is used a 4% aqueous solution of borax will be required.
What is the structure of polyvinyl alcohol in PVA glue?
The structure of polymer polyvinyl alcohol (also called polyethenol), which is contained in PVA glue. Borax forms the borate ion when in solution. This ion has the structure:
How to make slime with borax and alcohol?
Stir well. Measure out 10 cm 3 of borax solution into the beaker and add this to the polyvinyl alcohol solution, stirring vigorously until gelling is complete. This gel is sometimes known as ‘slime’. Wearing disposable gloves, remove the slime from the cup and knead it thoroughly to mix the contents completely.