What is sodium silicate used for?

Sodium silicate has been used to preserve eggs, fireproof fabrics, and waterproof walls. Most commonly, it is used as a cement for abrasive wheels, bonding paper, corrugated boxes and cartons, wood, glass, porcelain, leather, and textiles. A water glass solution is viscous and has little tack.

What does sodium silicate do to the skin?

Skin Contact: Causes severe irritation. Symptoms include redness, itching and pain. Dries to form a glass film which can cut skin. Solid sodium silicate: Dermal contact with alkaline corrosives may produce pain, redness, severe irritation or full thickness burns.

What is sodium silicate used for in detergent?

Sodium Silicate and Sodium Metasilicate Pentahydrate are used in industries producing several different types of detergent, because of its oil and grease removal and cleaning power, and because it is a buffering agent, helping in soil anti-redeposition and inhibiting process corrosion.

Is sodium silicate a flocculant?

Sodium silicate is used as a dispersant in the selective flocculation of iron ores with starch as the polymeric floccullant. The mechanism of its dispersive effect on quartz has been reported to be related to its ability to remove coagulants, such as calcium and magnesium ions, from the process water.

Is sodium silicate harmful?

Ingesting sodium silicate is unlikely; however, if ingested, it is moderately toxic and may cause pain and burns of the esophagus and gastrointestinal tract with vomiting, nausea, and diarrhea. There are no known chronic hazards associated with sodium silicates.

Which is another name for sodium silicate?

water glass, also called sodium silicate or soluble glass, a compound containing sodium oxide (Na2O) and silica (silicon dioxide, SiO2) that forms a glassy solid with the very useful property of being soluble in water. Water glass is sold as solid lumps or powders or as a clear, syrupy liquid.

Is sodium silicate Food Safe?

Sodium Silicate is currently used in 24 formulations at concentrations ranging from 0.3% to 55%. Potassium Silicate and Sodium Silicate have been reported as being used in industrial cleaners and detergents. Sodium Metasilicate is a GRAS (generally regarded as safe) food ingredient.

How do you add sodium silicate to soap?

The sodium silicate is generally available as a solution in water having a solids content of 40 to 50%, the balance being water. The sodium silicate (on dry weight basis) is preferably added in amounts in the range of 0.1 to 20 % by weight of the soap bar being prepared.

Is sodium silicate a dispersant?

Kaolinite is a common gangue mineral in iron ore and sodium silicate has been used widely as a dispersant of silicate gangue minerals including kaolinite in various iron-ore flotation methods over a wide range of pH.

Is sodium silicate eco friendly?

The silica gel is usually obtained from the commercially available sodium silicate, which can be defined an environmental friendly product as, if heated, it emits only water vapor and, when dispersed in soil or in waters, depolymerizes rapidly by dispersing in the form of silicon compounds indistinguishable from those …

Is sodium silicate a salt?

Sodium silicate is an inorganic sodium salt which has silicate as the counterion. It is also called Sodium metasilicate or Waterglass. The chemical formula of Sodium silicate is (Na2O)x·SiO2.