Sodium Hydroxide
Appearance: White Round Beads
Chemical Name: Sodium Hydroxide
Chemical Formula: NaOH
Packaging Type: 25 Kg bags
Definition and Areas of Use:
Pure sodium hydroxide is a colorless, crystalline solid that melts at 318 °C without decomposition. It is highly soluble in water, with lower solubility in ethanol and methanol, but insoluble in ether and other non-polar solvents. Its other name is Caustic Beads.
Similar to the hydration of sulfuric acid, dissolving solid sodium hydroxide in water is an extremely exothermic reaction in which a large amount of heat is released[12], posing a safety hazard due to the possibility of splashing. The resulting solution is usually colorless and odorless. As with other alkaline solutions, it becomes slippery on contact with the skin.
Sodium hydroxide is also known as caustic soda and sodium hydroxide. Sodium hydroxide is a highly caustic base and alkali, and can break down proteins at ordinary ambient temperatures and cause severe chemical burns.
Sodium hydroxide reacts with protic acids to produce water and related 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 + (aq) → H 2 O (I)
This type of reaction with a strong acid releases heat and is therefore exothermic. These acid-base reactions can also be used for titrations. However, sodium hydroxide is not used as a primary standard because it is hygroscopic and absorbs carbon dioxide from the air.
Areas of Use
- Acid control, bad odor removal, pipe cleaning, pH balancing)
- As an adhesive, in printing presses made with heat, in newsprint)
- In the production of Sodium Aluminate, Sodium Cyanide, Silicate, Polycarbonate, Titanium Oxide, Zeolite
- In the final product, it removes residues and whitens.
- STTP, Sodium Hypo Chloride, Soap, Oven and Pipe Cleaner manufacturing)
- Sodium Phenolate [in the production of aspirin and antiseptics]
- Refining cooking oil, peeling fruits and vegetables, ice cream
- In oil cleaning, water treatment, equipment cleaning
- Starch, Caustic, Water, Silicate: Together in Label Adhesive Manufacturing
- Starch, Caustic, Water, Borax: Together in the Production of Corrugated Cardboard Glue
- In removing acid residues in refined products, in removing phenols, in balancing pH in drilling mud, in removing calcium and bactericides in drilling.
- Filter Cleaner (in filter pools) and cleaning the acid unit in mines,
- Additionally, Caustic (Sodium Hydroxide) or Lime (Calcium Hydroxide) is used to adjust the pH value of the Sodium Cyanide used.