{"id":8071,"date":"2018-08-10T11:00:31","date_gmt":"2018-08-10T11:00:31","guid":{"rendered":"https:\/\/www.experimentoscientificos.es\/?p=8071"},"modified":"2019-07-15T15:36:07","modified_gmt":"2019-07-15T15:36:07","slug":"borax-slime","status":"publish","type":"page","link":"https:\/\/www.experimentoscientificos.es\/en\/borax-slime\/","title":{"rendered":"The role of Borax in Slime"},"content":{"rendered":"

WHAT IS BORAX<\/strong><\/h2>\n

Borax is a chemical compound in the form of a white powder or granules. Its chemical formula is\u00a0Na2B4O7-10H2O <\/strong>and is present in many compounds, especially in detergents and dyes.<\/p>\n

ACTION OF BORAX ON GLUE<\/p>\n

There are several ways to making a slime<\/a>. The original form, on which slime is based is\u00a0borax<\/strong>\u00a0y\u00a0pva glue<\/strong>. Borax is sometimes substituted by other components that ultimately contain borax in their composition (detergent, contact lens liquid). School glue is based on pva (polyvinyl acetate) and that is why it is the glue used (white school glue that can be bought in almost any stationery shop or Chinese shop).<\/p>\n

Making slime with borax and glue allows for very interesting variations, such as making a magnetic slime, making a fluorescent slime, making a cloud slime (using artificial snow powder).<\/p>\n

HOW MUCH BORAX TO USE WHEN MAKING A SLIME<\/h2>\n

One of the key points in slime is the amount of borax you mix with water, and then the amount of water + borax solution you pour into the glue. The mission of the borax is to break the pva chains of the glue and bind to it by trapping water molecules. This is why it is spongy and flexible. The amount of borax you need to add depends directly on the amount of % of pva in your glue and the amount of water in which you dissolve the glue. The temperature of the water in which you pour the borax also influences (a lot) the solubility.<\/p>\n

Taking all these factors into account, the amount of borax cannot be fixed as an exact figure. A good ratio that we have tried is to dissolve\u00a015 grams of borax per 1.5L water<\/strong>. This preparation will work for several slimes. For this ratio we are assuming a school glue, where you add the same amount of water as glue (see later steps). The reference water temperature is room temperature. Although in many places you will see that it is better to heat the water (and it is because of the solubility of the borax), for convenience when making the slime in a group, outdoors, we have calculated it for room temperature.<\/p>\n

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