Make your own Water-Glass sodium silicate.
06-22-2018
Water Glass (sodium silicate) has a very while range of uses for the Preppie or DIY person.
>>
Silica gel:
Interesting note on amounts used to make sand casting molds:
>>As far as the hardening methods are concerned, the adding quantity of sodium silicate binder is 5%– 6% (by weight of the sand) when the sodium silicate bonded sand was hardened by CO2, it is reduced to 2.5% – 3.5% by ester hardening [14], while the adding quantity of sodium silicate binder is only 1.5% – 2% for microwave heating hardening. This will basically solve the puzzles of the sodium silicate bonded sand process mentioned above [1]. Therefore, this microwave heating hardening process would open a new avenue to green and clean foundry production<<
Ref. http://www.foundryworld.com/uploadfile/200912130267115.pdf
Water Glass (sodium silicate) has a very while range of uses for the Preppie or DIY person.
>>
Sodium silicate is a generic name for chemical compounds with the formula Na
2xSiO
2+x or (Na
2O)
x·SiO
2, such as sodium metasilicate Na
2SiO
3, sodium orthosilicate Na
4SiO
4, and sodium pyrosilicate Na
6Si
2O
7. The anions are often polymeric. These compounds are generally colorless transparent solids or white powders, and soluble in water in various amounts.
2xSiO
2+x or (Na
2O)
x·SiO
2, such as sodium metasilicate Na
2SiO
3, sodium orthosilicate Na
4SiO
4, and sodium pyrosilicate Na
6Si
2O
7. The anions are often polymeric. These compounds are generally colorless transparent solids or white powders, and soluble in water in various amounts.
Sodium silicate is also the technical and common name for a mixture of such compounds, chiefly the metasilicate, also called waterglass, water glass, or liquid glass. The product has a wide variety of uses, including the formulation of cements, passive fire protection, textile and lumber processing, manufacture of refractory ceramics, as adhesives, and in the production of silica gel. The commercial product, available in water solution or in solid form, is often greenish or blue owing to the presence of iron-containing impurities.
In industry, the various grades of sodium silicate are characterized by their SiO2:Na2O weight ratio (which can be converted to molar ratio by multiplication with 1.032). The ratio can vary between 2:1 and 3.75:1.[1]Grades with ratio below 2.85:1 are termed alkaline. Those with a higher SiO2:Na2O ratio are described as neutral.
1) Making Sodium Silicate Quick, Cheap and So Easy to Make. Super Simple But Highly Concentrated.https://www.youtube.com/watch?v=_j7wox8pGoU
2) Making homemade Sodium Silicate(water glass) from cat litter for my forge !!!
https://www.youtube.com/watch?v=2NQPDuA41MQ
https://www.youtube.com/watch?v=2NQPDuA41MQ
3) Note here they use different ratios from other videos and also say you can use bleach instead of Lye.
>> Warm 10 ml of water in a test tube over a bunsen burner.
>> Warm 10 ml of water in a test tube over a bunsen burner.
Add 8 grams of sodium hydroxide to the test tube. Cap and shake until fully dissolved.
Crush the silica gel beads to form 6 grams of fine silica powder. Silica gel beads can be found in the little packets that come in newly bought shoes. They are in little paper packets that read "Silica gel: Do not eat."
Add the silica powder to the test tube. Warm over the Bunsen burner, and shake until dissolved. If the powder is not fully dissolved after ten minutes, add a little more water to the test tube and shake until fully dissolved.
Tip
The mass ratios in this experiment (6 and 8 grams) have been set up to match the stoichiometric ratios of the chemicals. If you wish to make more water glass, simply multiply both these numbers by the same constant.
Sodium hydroxide is a common ingredient in most basic household liquid cleaners.<<
Ref. https://sciencing.com/make-sodium-silicate-sodium-hydroxide-6616066.html
Ref. https://sciencing.com/make-sodium-silicate-sodium-hydroxide-6616066.html
Silica gel:
https://en.wikipedia.org/wiki/Silica_gel
Interesting usage note from commercial product:
Seelfast Cement and Concrete Sealer (100% Sodium Silicate / Water Glass) Versatile Floor, Basement | Water Repellent Finish | Full-Strength Adhesive | Made in the USA $37.95 gal.
>>Seal away cracks in cement, create leak-resistant gaskets, or preserve eggs for up to a full year with Seelfast, a premium sodium silicate that?s safe and effective.
Whether you trying to protect your garage floor from cracks, oils, and spills, eliminate dust, you want an efficient way to adhere labels, or you into food preservation, this advanced Seelfast Sodium Silicate will help you create the perfect, transparent barrier for long-lasting protection.
Designed as an easy-to-apply sealant with multiple indoor and outdoor uses, Seelfast is safe, non-toxic, and contains no odors. Simply mix it with the appropriate amount of water, coat your surface, and let dry. It?s that simple.
Seelfast is also so versatile that it can even be used to preserve eggs for extended periods of time, diluted for use as a cleaner or disinfectant, or even to seal cardboard cartons or apply labels with its adhesive qualities.
Product Details:
- Premium Sodium Silicate Sealant
- Mixes with Water
- Dilute for General Disinfectant Cleaning
- 1- Gallon Preserves 600 Eggs Up to 1-Full Year
- Non-Hazardous, Fumeless Formula
- Permanent Binding Adhesive
- Unopened Shelf Life: 3 Years
- Volume: 1 Gallon (3.87 Liters)
Note: Avoid glass surfaces. Once dry, sodium silicate cannot be removed.
An all-purpose cement and concrete sealant to fortify flooring and surfaces with durable, transparent protection.
- Seals porous concrete surfaces
- Eliminates concrete dust
- Protects against spills and stains
- Great for concrete floors, sidewalks, or driveways
- Excellent adhesive to seal cardboard cartons or applying labels.
Ingredients:
Active Ingredients: sodium silicate
Directions:
Instructions: To apply, clean the surface before treatment as sodium silicate will not adhere to oil or grease. Use a mix ratio of four-parts water to one-part sodium silicate. Using a mop, apply a coat to the surface and allow to thoroughly dry. Then apply two more coats for best coverage.To use as an adhesive: Sodium silicate is an excellent adhesive to seal cardboard cartons and applying labels. Use full strength, but it may also be diluted partially with water.For general cleaning: Sodium silicate alkaline properties makes it an excellent cleaner and disinfectant. Simply mix one cup with two gallons of water.For food preservation: One of the original uses for sodium silicate was in food preservation helping to keep eggs fresh for up to two years. To achieve this, use a mix ratio of 9-parts water to one-part sodium silicate. Place unwashed eggs in a container and cover the eggs with the sodium silicate solution to about 1-2 inches above eggs. Cover and store in a cool place.<<
Interesting note on amounts used to make sand casting molds:
>>As far as the hardening methods are concerned, the adding quantity of sodium silicate binder is 5%– 6% (by weight of the sand) when the sodium silicate bonded sand was hardened by CO2, it is reduced to 2.5% – 3.5% by ester hardening [14], while the adding quantity of sodium silicate binder is only 1.5% – 2% for microwave heating hardening. This will basically solve the puzzles of the sodium silicate bonded sand process mentioned above [1]. Therefore, this microwave heating hardening process would open a new avenue to green and clean foundry production<<
Ref. http://www.foundryworld.com/uploadfile/200912130267115.pdf
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