What is sodium metasilicate used for?

Sodium metasilicate is used in fireproofing mixtures; in laundry, dairy, metal, and floor cleaning; in deinking paper; in washing carbonated drink bottles; in insecticides, fungicides, and antimicrobial compounds; as a chemical intermediate for silica gel catalysts; as an additive in soaps and synthetic detergents; as …

Is sodium metasilicate hazardous?

Upon contact with moist mucous membranes, sodium metasilicate is highly alkaline and may cause corrosive damage. Ingestion: Harmful if swallowed. May cause immediate pain and severe burns of the upper and lower gastrointestinal tract with vomiting, nausea, and diarrhea.

What is the difference between sodium silicate and sodium metasilicate?

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. Sodium metasilicate is a flaked solid or powdered substance.

How do you make sodium metasilicate?

Sodium metasilicate pentahydrate is made commercially by reacting silica with a concentrated sodium hydroxide solution, which yields a sodium silicate solution having about 40 weight percent dissolved solids and an Na O:SiO molar ratio of about 1:1, concentrating the “ice sodium silicate solution by evaporation to …

Is sodium metasilicate a bleach?

Sodium metasilicate is also used as an additive in soaps and synthetic detergents, as an ingredient in adhesives, and as a bleaching aid.

Is sodium metasilicate a 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 poisonous?

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.

Why is sodium silicate called water glass?

Water glass is the common name for an aqueous solution of either sodium silicate or potassium silicate. It’s also called “liquid glass”. It gets its name because it’s essentially glass (silicon dioxide) in water. As the water evaporates, the solution solidifies into a glassy solid.

What is the common name of sodium metasilicate?

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.

Is sodium metasilicate a base or acid?

COLOURLESS-TO-WHITE HYGROSCOPIC SOLID IN VARIOUS FORMS. The solution in water is a strong base. It reacts violently with acid and is corrosive to aluminium and zinc.

Which is another name for sodium silicate?

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.

How is sodium silicate used in soap making?

Sodium Silicate solution is added to detergent shiny to help control reversion of the phosphates during the spray drying process. It also acts as binder to give the desired degree of “crispness” to the detergent bead without impairing its solubility in water.

What is sodium metasilicate water?

Sodium metasilicate is the ionic chemical compound with the formula Na2SiO3, and the main component of commercial sodium silicate solutions. It is colorless crystalline, deliquescent, and hygroscopic, soluble in water to give an alkaline solution.

How do you mix sodium silicate with water?

Bring purified water to a low simmer (approximately 175 degrees) on an electric stove. Stir sodium silicate powder into hot water with a long-handled metal spoon. Continue stirring until the powder is completely dissolved. Remove solution from heat and allow it to cool to room temperature.

Is sodium metasilicate biodegradable?

Disodium metasilicate is an inorganic substance and therefore not amenable to biodegradation. It is not expected to bioaccumulate. It is of low toxicity concern to aquatic organisms.

What are silicates in chemistry?

Silicates are salts containing anions of silicon (Si) and oxygen. There are many types of silicates, because the silicon-to-oxygen ratio can vary widely. In all silicates, however, silicon atoms are found at the centres of tetrahedrons with oxygen atoms at the corners.

What is the pH of sodium metasilicate?

Spills of sodium metasilicate can be very slippery when wet. Sodium metasilicates are alkaline, meaning they have high pH. The pH typically ranges from 12.4 to 12.7.

Is sodium metasilicate corrosive to aluminum?

Most other builders have a higher pH and require the use of sodium metasilicate to inhibit the attack of the base aluminum. If the intent is to etch the aluminum surface, then the use of higher pH builders such as sodium carbonate and free caustic like sodium hydroxide will heavily attack the aluminum.

What does sodium sulfate do in detergent?

Why is sodium sulphite added to laundry and dish-washing detergents? Sodium sulphite is not added for cleaning purposes, at least not as far as the laundry is concerned. It is added to protect the washing machine or dishwasher from corrosion. Iron reacts with oxygen to form ferric oxide which is better known as rust.

How is sodium silicate used with cement?

Sodium silicate has already found multiple uses in cementitious materials. For example, it is used as an alkali-activator in alkali-activated cements [26]. In concrete, it is used as a setting accelerator and also applied in the form of silicate mineral paint to enhance waterproofing and improve durability [25, 27].

How do you make water glass?

  1. Wear proper safety gear, which includes gloves.
  2. Heat 4 to 8 grams of sodium hydroxide in 10 milliliters of water.
  3. Once the sodium hydroxide is dissolved, slowly add 6 grams of crushed silica gel beads. Heat the solution between additions.
  4. You now have sodium silicate or water glass.

What will dissolve sodium silicate?

Sodium silicate dissolves easily in water, forming a basic solution. It tends to form high hydrates, such as the pentahydrate and nonahydrate.

What is sodium silicate side effects?

A strong alkaline irritant. Inhalation can cause severe irritation of mucous membranes and upper respiratory tract. Symptoms may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting. High concentrations may cause lung damage.

What does sodium silicate do to the skin?

Sodium Silicate has been used in cosmetics for years as it helps bind together ingredients and gives products a smooth texture. It’s also used in skin care products to help reduce the appearance of fine lines and wrinkles.

Is water glass toxic?

The intake of 0.51 of water glass (sodium metasilicate; colloid pH 12.5) led to death within 1-1.5 h. Autopsy revealed alkali burns of the stomach mucosa. The stomach contained a small amount of liquid with a pH of 11.5.

Do NOT follow this link or you will be banned from the site!