Borax Alternative for Making Slime. If you prefer not to let your kids mix up slime using powdered detergent, contact lens solution containing boric acid makes a good Borax substitute, when combined with baking soda and glue. (Note: Most liquid laundry detergents in recipes for “Borax-free” slime contain Borax.)Click to see full answer. In this regard, is Borax the same as baking soda?Summary: Baking Soda vs. Borax. Baking soda and borax are commonly used products of different chemical compounds. Borax is classified as a sodium borate that comes in white solid while baking soda is classified as sodium bicarbonate that comes in white crystals.Beside above, what is Borax UK equivalent? BORAX DECAHYDRATE What is borax: In the UK, Borax also called sodium tetraborate decahydrate, is sold as a naturally occurring mineral compound best known as a laundry booster and water softener. Borax is also excellent as a multi-purpose household cleaner with many uses throughout the house including craft projects. Hereof, what can I use as an activator for slime? BASIC SLIME RECIPES (CLASSIC) These slime recipes all use glue and some sort of boron as a slime activator including borax, sodium borate, or boric acid. These ingredients come in the form of saline solution, liquid starch, eye drops, and borax powder.What is the difference between borax and borax substitute?Borax versus Borax Substitute: There is quite a difference between these two items, both of which can be used in frugal laundry detergent. Borax Substitute (Sodium Sesquicarbonate)… see more. Borax, whilst being a natural product, is non-biodegradable and can be used effectively as an herbicide and insecticide!