Sodium benzoate (CAS 532-32-1)
Sodium benzoate (CAS 532-32-1)
Sodium benzoate is the sodium salt of benzoic acid, widely used as a food preservative and pickling agent. A white crystaline chemical with the formula C6H5COONa, it has an E number of E211. It can be produced by reacting sodium hydroxide with benzoic acid.
Sodium benzoate is produced by the neutralization of benzoic acid, which is itself produced commercially by partial oxidation of toluene with oxygen.
Many foods are natural sources of benzoic acid, its salts (such as sodium benzoate), and its esters. Fruits and vegetables can be rich sources, particularly berries such as cranberry and bilberry. Other sources include seafood, such as prawns, and dairy products.
Sodium bisulhite (CAS 7631-90-5)
Sodium bisulhite (CAS 7631-90-5)
Sodium bisulfite solution is a variously colored liquid at room temperature. It is used in waste water treatment, in the pulp and paper industry, in the photographic industry and in various other industries as a bleach or dechlorinator. It can also be used to treat flue gases to remove sulfur trioxide (SO3).
Sodium butyrate (CAS 156-54-7)
Sodium butyrate (CAS 156-54-7)
Sodium butyrate is a compound with formula Na(C3H7COO). It is the sodium salt of butyric acid. It has various effects on cultured mammalian cells including inhibition of proliferation, induction of differentiation and induction or repression of gene expression. As such, it can be used in lab to bring about any of these effects. Specifically, butyrate treatment of cells results in histone hyperacetylation, and butyrate itself inhibits class I histone deacetylase (HDAC) activity, specifically HDAC1, HDAC2, HDAC3, and butyrate can be used in determining histone deacetylene in chromatin structure and function. Inhibition of HDAC activity is estimated to affect the expression of only 2% of mammalian genes.
In the lab, sodium butyrate is usually found as a white, water-soluble, crystalline solid. The chemical is notable for having a very strong, unpleasant smell that lingers. When working with sodium butyrate, gloves, eye protection and respiratory masks are advised for safety purposes.
Sodium carbonate (CAS 497-19-8)
Sodium carbonate (CAS 497-19-8)
Sodium carbonate, Na2CO3·10H2O, (also known as washing soda, soda ash and soda crystals) is the inorganic compound with the formula Na2CO3 and its various hydrates. All forms are white, odourless, water-soluble salts that yield moderately alkaline solutions in water. Historically, it was extracted from the ashes of plants growing in sodium-rich soils. Because the ashes of these sodium-rich plants were noticeably different from ashes of wood (once used to produce potash), sodium carbonate became known as “soda ash.” It is produced in large quantities from sodium chloride and limestone by the Solvay process.
Sodium Carboxymethylcellulose (CAS 9000-11-7)
Sodium Carboxymethylcellulose (CAS 9000-11-7)
Carboxymethyl cellulose (CMC) or cellulose gum is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of the hydroxyl groups of the glucopyranose monomers that make up the cellulose backbone. It is often used as its sodium salt, sodium carboxymethyl cellulose. It used to be marketed under the name Tylose, a registered trademark of SE Tylose.
CMC is used in food under the E number E466 or E469 (when it is enzymatically hydrolyzed) as a viscosity modifier or thickener, and to stabilize emulsions in various products including ice cream. It is also a constituent of many non-food products, such as toothpaste, laxatives, diet pills, water-based paints, detergents, textile sizing, reusable heat packs, and various paper products. It is used primarily because it has high viscosity, is nontoxic, and is generally considered to be hypoallergenic as the major source fiber is either softwood pulp or cotton linter. CMC is used extensively in gluten free and reduced fat food products. In laundry detergents, it is used as a soil suspension polymer designed to deposit onto cotton and other cellulosic fabrics, creating a negatively charged barrier to soils in the wash solution. In ophthalmology, CMC is used as a lubricant in artificial tears to treat dry eyes. Extensive treatment may be required to treat severe dry eye syndrome or Meibomian gland dysfunction (MGD).
CMC is also used as a thickening agent, for example, in the oil-drilling industry as an ingredient of drilling mud, where it acts as a viscosity modifier and water retention agent. Sodium CMC(Na CMC) for example, is used as a negative control agent for alopecia in rabbits.
Knitted fabric made of cellulose (e.g. cotton or viscose rayon) may be converted into CMC and used in various medical applications.
Sodium chloride [rock salt] (CAS 7647-14-5)
Sodium chloride [rock salt] (CAS 7647-14-5)
Sodium chloride /ˌsoʊdiəm ˈklɔːraɪd/, commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl. Sodium chloride is the salt most responsible for the salinity of seawater and of the extracellular fluid of many multicellular organisms. In its edible form of table salt, it is commonly used as a condiment and food preservative. Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further chemical syntheses. A second major application of sodium chloride is de-icing of roadways in sub-freezing weather.
Sodium chloride [salt tablets] (CAS 7647-14-5)
Sodium chloride [salt tablets] (CAS 7647-14-5)
Sodium chloride /ˌsoʊdiəm ˈklɔːraɪd/, commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl. Sodium chloride is the salt most responsible for the salinity of seawater and of the extracellular fluid of many multicellular organisms. In its edible form of table salt, it is commonly used as a condiment and food preservative. Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further chemical syntheses. A second major application of sodium chloride is de-icing of roadways in sub-freezing weather.
Sodium Citrate (CAS 6132-04-3)
Sodium Citrate (CAS 6132-04-3)
Sodium citrates are used as acidity regulators in food and drinks, and also as emulsifiers for oils. They enable cheeses to melt without becoming greasy. It reduces the acidity of food as well.
Sodium citrate is used to prevent donated blood from clotting in storage. It is also used in a laboratory, before an operation, to determine whether a person’s blood is too thick and might cause a blood clot, or if the blood is too thin to safely operate. Sodium citrate is used in medical contexts as an alkalinizing agent in place of sodium bicarbonate, to neutralize excess acid in the blood and urine. It has applications for the treatment of metabolic acidosis and chronic kidney disease.
Sodium Fluorosilicate (CAS 16893-85-9)
Sodium Fluorosilicate (CAS 16893-85-9)
Sodium fluorosilicate is a compound with the chemical formula Na2[SiF6].
It is used in some countries as additives for water fluoridation, opal glass raw material, ore refining, or other fluoride chemical (like sodium fluoride, magnesium silicofluoride, cryolite, aluminum fluoride) production.
Sodium formate (CAS 141-53-7)
Sodium formate (CAS 141-53-7)
Sodium formate, HCOONa, is the sodium salt of formic acid, HCOOH. It usually appears as a white deliquescent powder.
Sodium formate is used in several fabric dyeing and printing processes. It is also used as a buffering agent for strong mineral acids to increase their pH, as a food additive (E237), and as a de-icing agent.
In structural biology, sodium formate can be used as a cryoprotectant for X-ray diffraction experiments on protein crystals, which are typically conducted at a temperature of 100 K to reduce the effects of radiation damage.
Sodium Gluconate (CAS 527-07-1)
Sodium Gluconate (CAS 527-07-1)
Sodium gluconate is a compound with formula NaC6H11O7. It is the sodium salt of gluconic acid. Its E number is E576. Sodium gluconate is widely used in textile dyeing, printing and metal surface water treatment. It is also used as a chelating agent, a steel surface cleaning agent, a cleaning agent for glass bottles, and as a chelating agent for cement, plating and alumina dyeing industries. It is a white powder that is very soluble in water.
Sodium Glutamate Monohydrate (CAS 142-47-2)
Sodium Glutamate Monohydrate (CAS 142-47-2)
L-(+)sodium glutamate (monosodium L-glutamate, MSG) has a unique taste, known as “umami”, which is different from the four basic tastes of sweet, salty, sour, and bitter.
MSG is used in large quantities as a flavor enhancer throughout the world. MSG is not a direct taste enhancer but a complex flavor enhancer for gravies, meats, poultry, sauces, and in other combinations. MSG is also used to enhance the taste of tobacco and to treat hepatic coma. As a salt of amino acid, MSG is also safe in practices of use and concentration in cosmetics, such as skin care products.