Appearance : White Colored Round Beads
Chemical Name : Sodium Hydroxide
Chemical Formula : NaOH
Packaging Type: In 25 Kg sacks
Definition and Usage Areas:
Pure sodium hydroxide is a colorless, crystalline solid that melts at 318°C without decomposition. It is highly soluble in water, with a lower solubility in ethanol and methanol, but insoluble in ether and other non-polar solvents.
Similar to the hydration of sulfuric acid, dissolving solid sodium hydroxide into water is an extremely exothermic reaction in which a large amount of heat is released [12], posing a threat to safety due to the possibility of splashing. The resulting solution is usually colorless and odorless. As with other alkaline solutions, it becomes slippery in contact with the skin.
Sodium hydroxide is also known as algae and caustic soda. Sodium hydroxide is a highly caustic base and alkali that can break down proteins at ordinary ambient temperatures, causing severe chemical burns.
Sodium hydroxide reacts with protic acids to produce water and associated salts. For example, when sodium hydroxide reacts with hydrochloric acid, sodium chloride is formed:
NaOH (aq) + HCl (aq) → NaCl (aq) + H 2 O ( l )
In general, such neutralization reactions are represented by a simple net ionic equation:
OH - (aq) + H + (aqueous) → H 2 O (I)
This type of reaction with a strong acid dissipates heat and is therefore exothermic. These acid-based reactions can also be used for titrations. However, sodium hydroxide is not used as the primary standard because it is hygroscopic and absorbs carbon dioxide from the air.
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