The dissolution of caustic soda flake in water has been heated process and follow solving it in water a lot of heat will releasing.
It has less solubility in ethanol and methanol While not soluble in ether and other non-polar solutions.
It can easily absorb air humidity and for that reason Protective covers should be provided when transporting.
Caustic Soda in contact with skin has corrosive effect and to prevent its burning effects this item should be taken into consideration when using it.
Producing method of Caustic soda
The highest amount of caustic soda flake produced through the electrolysis process of sodium chloride solutions it comes in one of a variety of electrolytic containers for example in the process of mercury cell a stream of mercury is used as a cathode and the sodium sulfate is mixed with water and will produce caustic soda.
And in the other process called Diaphragm Pail The electrolyte moves from the anode to the cathode and diaphragm of cotton or other membrane materials it separates the anode and cathode products.
In both processes, in addition to caustic soda flake Chlorine and also hydrogen gas will produce.
An older process of production for caustic soda the term is the process of soda and lime in this process calcium hydroxide in reaction with sodium carbonate will becomes to caustic soda.
Caustic soda flake producing way
Caustic soda flake is producing by using liquid caustic soda in petrochemicals during the process of condensation and evaporation.
Producer units for producing Caustic soda flake are using liquid of caustic soda. In this production process first caustic soda liquid with purity of 50% will transport to producer factories and then the liquid caustic during the production process in the evaporation lines While evaporating the water in it and during precise steps and precise monitoring it becomes to Caustic soda solid with a purity of 98-99%.
Risks of Caustic soda flake
If swallowed, it can be very dangerous and cause irritation of the respiratory system. The severity of the dangers is understandable when it comes to burning them and provoking these members if they are contacted.
If NAOH is swallowed through the mouth, it can cause several burns inside the mouth, Also, if swallowed perfectly, the same effect affects the throat and other organs like the stomach.
Caustic soda in flake mode can react with metals and produce hydrogen which causes fire in the presence of oxygen.
Due to its toxic effects It can cause bleeding, Vomiting and diarrhea, And cause hypotension.
Inhalation of caustic soda may irritate the respiratory tract and cause problems such as lung inflammation.
Runny nose, fever, sore throat and sore, Some of the disadvantages of contact with this chemical are Skin scarring is a common hazard of NaOH, it can damage the skin’s deep layers.
Although not combustible, but in contact with combustible materials may ignite, in any case, it is better to keep this material away.
Not only the skin, but sodium hydroxide also causes corrosion of wooden flooring and painted surfaces.
The eye may be damaged if exposed to NaOH Causing various things like glaucoma, Cataracts and permanent blindness.
Any exposure to caustic soda flake even its low levels can cause acute respiratory problems.
Gas leakage from Caustic soda in closed areas may cause pulmonary obstruction and blockage of respiratory tract of peoples.
Caustic soda flake Maintenance and transportation
Keep away from moisture and carbon dioxide in air and in sealed containers.
In case of loss, it can be washed or collected.
It can be neutralized with acids and can be washed with water.
Caustic soda flake Environmental considerations
Increases the alkalinity of water and soil
Caustic soda flake chemical properties
Reaction with acid, It reacts with protonated acids to produce water and salt. For example, when it is reacting with chloride acid Sodium chloride will formed.
It also reacts with oxides of acids such as sulfur dioxide, These reactions are often used to remove harmful gaseous gases (such as So2 and H2s) from coal burning. and thus prevent the release of these gases in the atmosphere.
Reaction Caustic soda with metals
caustic soda produces hydrogen in the reaction with aluminum metal.
Caustic Soda flake Sedimentation
Most of the hydroxides of conductive metals are insoluble, Therefore, it can be used as a precipitate for conducting metal hydroxides.
Due to the solubility or precipitation of Caustic soda with these compounds, these colors become apparent:
Zinc and lead salts are dissolved in caustic soda to form a clear solution of Na2Zno2 or Na2PbO2.
Aluminum hydroxide is used as a flocculant (water purification powder) to filter particulate matter in water purification. Aluminum hydroxide is separated from the aluminum sulfate by the reaction with Caustic soda or carbonate in the purification process.
Caustic soda flake packing
it is packing in Double layer laminated and double glazed polyethylene bags with net weight of 25 kg and for better safety in shipping process we are putting these 25 kg bags in 1250 kg jumbo bags.