SODIUM HYDROXIDE IRANIAN
CAS number: 1310-73-2
EC Number: 215-185-5
UN number: 1823
MeSH: Sodium hydroxide
RTECS number: WB4900000
Molecular formula: NaOH
Molar mass: 39,9971 g mol-1
Appearance: White, wax, opaque crystals
Density: 2.13 g / cm3
Melting point: 318 ° C, 591 K, 604 ° C
Boiling point: 1388 ° C, 1661 K, 2530 ° F
Solubility in water: 111 g / 100 ml (at 20 ° C)
Solubility in Methanol: 23.8 g / 100 mL
Ethanol solubility: << 13.9 g / 100 mL
Vapor pressure: <2.4 kPa (at 20 ° C)
Acidity (pKa): 13
Refractive index (nD): 1,3576
Sodium hydroxide, the chemical formula of NaOH, is a white moisturizing agent. Straws are called caustic. It dissolves easily and forms a soft slippery and soap sensing solution. Caustic is not flammable. However, it is a very strong disinfectant. Soluble in the structure of the grain structure can be more easily than the straw. However, the sodium structure of the bead structure is stronger than the straw and the resistance is more resistant to breakage. This results in a lower moisture content.
Na 1 O -2 H 1
Production and Reactions
They can be obtained by exothermic reaction of sodium and water.
2Na 2H2O -> 2NaOH H2 Heat
It is an important chemical to form salt with acids with its strong basic structure.
NaOH HBr ---> NaBr H2O
NaOH HCl ---> NaCl H2O
It reacts with metals to release hydrogen gas.
Straws sodium hydroxide is used in water treatment systems.
The staple, like sodium hydroxide in the bead structure, is also used in detergent and soap making with its strong basic structure.
It is used as an additive in refining oil and as an additive in ice cream. It is also used as an additive in soft drinks and dairy products.
In the mining sector, the straw is used for caustic filter cleaning.
Drilling is also used for the removal of calcium and bacterist. It can also provide ph balance in drilling mud.
It is used in the laboratory to capture acidic gases such as CO2. It is also used in the production of many chemicals.
Beads like caustic are used in this sector to remove residual acids.