Yes. I was on a number of medications, and took over the counter pain pills. After several weeks of taking pills, my face and neck became pruritic, red swollen and incredibly itchy. My doctor and a dermatologist were unable to tell me the source of the allergy. I found out on my own by reading the full ingredient list of what was making me break out. Unfortunately, silicon dioxide is in other products besides medicine. For example, zombie makeup for Halloween, marinade seasoning, and hair conditioner. My sensitivity is becoming greater, so now I don't even take vitamin supplements. Just this week my arms and neck broke out again in red itchy bumps. This time it was a diet pill I was an idiot for taking.
If you are allergic to silicone, you should check with your doctor before taking anything with silica products in it. This could very well cause an allergic reaction.
Not only NaOH, can be any other compound that do not have any water molecule attached to it such as anhydrous CaCl2, Silica gel, anhydrous NaCl..
Agate is colloidal silica - it is a form of quartz.
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Sometimes referred to as a sol or silica sol, colloidal silica consists of a stable dispersion amorphous silica particles. To achieve this, the silica particles must be small enough such that they are largely unaffected by gravity. Therefore, silica particle sizes are usually of the order of less than 100 nanometres. The term colloid refers to the suspension, where the sols are the tiny discrete particles in suspension. Colloidal silica's can be manufactured from materials such as sodium silicate and are usually available in varying concentrations to suit various applications
It is not recommended to use colloidal silica on cats as it can be harmful if ingested or inhaled by pets. It is important to consult with a veterinarian before using any new products on cats to ensure their safety and well-being.
Colloidal silica is commonly used in dental materials because it has a high surface area, which allows for strong interactions with the resin matrix, resulting in improved mechanical properties. It also provides stability, easy handling, and biocompatibility in dental restorations.
Alkali-silica reaction is seen in concrete structures where reactive silica from aggregates combines with alkalis in the cement, forming a gel that expands under moist conditions, leading to cracking and degradation of the concrete over time.
Yes, sulfuric acid can etch silica by reacting with the surface of the silica to form silicon sulfate compounds. This reaction can result in the formation of a rough surface on the silica, altering its properties.
Calcium silicate.
Higher silica contents will be in the igneous rocks that form with lower temps. Ones that form earlier in the series like olivine have lower percentages of silica.
The water will be absorbed; calcium chloride being highly hygroscopic become after a period of time a solution. If silica gel was colored with cobalt chloride the color is changed after the water absorption.