What is Caustic Soda?

Caustic soda – or sodium hydroxide – is natural co-product of chlorine production. In addition, indeed  laws of chemistry define that for every tonne of chlorine you produce, about 1100 kg of caustic soda is also produced, together with 28 kg of hydrogen.
In addition, it`s basic reactant in making wide range of organic chemicals. 32 % of caustic production uses in this way.

Paper, pulp and cellulose industries also are major users of caustic soda. Inorganic chemicals like paints, glass, ceramics uses in fuel cell production. Furthermore, cosmetics are also very important.

NaOh also uses on: food industry, water treatment (flocculation of heavy metals and acidity control), soaps and detergents sectors, textile sector (bleaching agent), mineral oils (preparation of greases and fuel additives). Furthermore, it uses as synthesis of synthetic fiber rayon. 4% of caustic soda also used in refining aluminium from its ore bauxite.

Furthermore, it has miscellaneous applications, like the synthesis of pharmaceutical compounds, rubber recycling and the neutralization of acids.

More about Caustic Soda:

Sodium hydroxide is an important chemical raw material. Also it can be used in various fields.

Specific information:
Product range: caustic soda flakes 99%
Chemical name: sodium hydroxide
Chemical formula: NaOH
Uses: petroleum refining, papermaking, textile, printing and dyeing, soap, metallurgy, chemical industry, etc.
Packing: 25kg/bag,25T/20’FCL

Sodium hydroxide uses:

Food industry
Adhesives and sealant chemicals
Adsorbents and absorbents
Agricultural chemicals (non-pesticidal)
Anti-adhesive agents
Bleaching agents
Corrosion inhibitors and anti-scaling agents
Finishing agents
Fuels and fuel additives
Functional fluids (closed systems)
Intermediates also
Ion exchange agents
Laboratory chemicals
Oxidizing/reducing agents
Paint additives also coating additives not described by other categories
Plating agents and surface treating agents
Processing aids, not otherwise listed

Also in Process regulators

NaOH specification for download


Caustic soda has many uses at industrial level. It used in cleaning agents manufacturers such as soaps and toilet cleaners.
Sodium Hydroxide also uses in paint stripping. When there is a need to remove paint on any surface including wood, metal, or any furniture caustic soda can come in handy when removing the old paint. When applied to the surface, it causes the paint on the surface to detach itself. This process is known as paint stripping. Caustic soda clears the surfaces of any paint.
At home, it is used to unblock all drainage. A little quantity of caustic soda poured into blocked drainage pipes can clear the pipes of any blockages.

Most people use caustic soda on door stripping. When they wish to change the paint on doors, they use caustic soda to remove the old paint from the doors. Caustic soda easily strips off paint from doors. However, handling NaOH requires high levels of caution as it is a very corrosive chemical compound that is very hazardous to humans.


NaOH hazards:

caustic soda

Signal: Danger
GHS Hazard Statements
Aggregated GHS information provided by 4555 companies from 61 notifications to the ECHA C&L Inventory. Furthermore, each notification may be associated with multiple companies.

In addition, reported as not meeting GHS hazard criteria by 34 of 4555 companies. For more detailed information,

Of the 60 notification(s) provided by 4521 of 4555 companies with hazard statement code(s):

H290 (44.15%): May be corrosive to metals [Warning Corrosive to Metals]
H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
H315 (36.03%): Causes also skin irritation [Warning Skin corrosion/irritation]
H318 (40.9%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
H319 (36.43%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Information may vary between notifications depending on impurities, additives, also other factors. In addition, percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Furthermore, hazard codes with percentage values above 10% are shown.