Post Buying Request
Home > Industry News > How to distingush sodium hydroxide

How to distingush sodium hydroxide

How to distingush sodium hydroxide2016.08.29

Sodium hydroxide is a kind of alkali with strong corrosive, generally they are flake or pellet form, easily soluble in water, and forms alkaline solution. It is hygroscopic, easy to absorb water vapor in the air (hygroscopic) and carbon dioxide (metamorphic), hydrochloric acid can be added to verify deterioration. Sodium hydroxide (NaOH) can be used as alkaline cleaning agents in water treatment to be dissolved in ethanol and glycerol, but it is insoluble in alcohol and ether.

Food grade sodium hydroxide is different from food grade sodium bicarbonate. Sodium hydroxide is a strong alkali substances with a certain amount of corrosive chemicals. And baking soda is a weak alkaline substances, it is hardly has any corrosion. Sodium hydroxide is usually used as food processing additives, and it will not have any residues after processing. While sodium bicarbonate is mainly used in the flour products food additive, the function is fluffy. So the two kinds of food additives uses are not the same. As to sodium hydroxide for industrial use and food grade use, the purity is different. The industrial use sodium hydroxide is low purity and may contain substances harmful to the human body, which is not allowed in food grade sodium hydroxide.

Generally, the presence forms of sodium hydroxide are rendered in white translucent crystalline flake, of course, some manufacturers according to customer's need to produce sodium hydroxide with different shapes, such as granular. Due to the special physical and chemical properties of sodium hydroxide, for example, it has a very strong water absorption and moisture absorption function, this indicate that one of its applications is similar to lime and can be used as a desiccant. Because of its strongly alkaline, it can be applied to cooking and bleaching papers. Food grade sodium hydroxide can be used as processing of starch as a catalyst.

sodium hydroxide for use

But how it is stored, as well as during transport the attention? Industrial use solid caustic soda are packaged by metal pail or other airtight, the metal pail wall thickness is above 0.5mm, pressure resistance is 0.5Pa, the lid must be sealed solid barrel, etc. There should be clear symbol of "corrosive" on the packaging. Food liquid caustic soda load by tank wagon, it must be clean well after use two times. Do not allow shipment of liquid mercury-electrolysis of caustic soda tank wagons or tank, barrel shipping edible liquid caustic soda. There should be clear words of "food additive" and symbol of "corrosive". If you have interest, here we will introduce more okchem chemicals, thanks!


More Reading

The Best Living Room Paint Colors

Looking for the best colors for your family go-to place? Firstly, ask yourself what you need to decorate the space. Imagine when you sit in your couch, how do you want to feel?

Glitter Paint for Walls

Glitter paint for walls will definitely add a magic touch to the room. But when you are decorating or refurnishing the house, you may encounter the following problems: what paint shall be used?

What is trisodium phosphate

One of the CAS Numbers of trisodium phosphate is 7601-54-9, and it’s abbreviated as TSP. We can take phosphoric acid( H3PO4) as a matrix, then the three hydrogen ions( H+) in the molecular structure are all replaced by three metal sodium atom( Na), and forms the resulting product----TSP.

35% food grade hydrogen peroxide

35% food grade hydrogen peroxide is widely used as the bleaching agent, preservation and anti-corrosion for waterishlogged food products and dried fruits, and can also be used as sterilization for food processing equipment and container.

What is an organic Compounds

Organic coatings are the most ordinary paint products, and the composition of organic coatings are pigments, base materials, liquids and additives.

Outdoor glow in the dark paint

ZnS luminous material and clear gloss acrylic gel, make the outdoor glow in the

dark paint the best performance.

What Is Propylene Gycol

Propylene glycol, also known as propane-1,2-diol, is a synthetic liquid C3H8O2. And what is this synthetic organic compound used for?

What are triglycerides

High triglycerides may lead to heart disease which can be prevented by exercise and diet, but using theses medical treatments may be more effective.

Sodium bicarbonate uses

Find various common uses of sodium bicarbonate, also known as baking soda.

You can also find how to use in pharmaceutical, food/drink, cosmetic/skin,

and cleaning.

Share It : How to distingush sodium hydroxide How to distingush sodium hydroxide How to distingush sodium hydroxide How to distingush sodium hydroxide