Basic Information
Other Names: Caustic Soda
Molecular Formula: NaOH
Molecular Weight: 40
CAS NO.: 1310-72-2
EINECS NO.: 215-185-5
Melting point : 318.4 ºC
Boiling point : 1388 ºC
Physicochemical Properties
Sodium hydroxide, also known as caustic soda, is an inorganic compound with the chemical formula NaOH
Sodium hydroxide has strong alkalinity and strong corrosiveness. It can be used as acid neutralizer, complex masking agent, precipitating agent, precipitation masking agent, color developer, saponification agent, peeling agent, detergent, etc., and has a wide range of uses.
Product Parameters
Density: 2.13g/cm3
Melting point: 318ºC
Boiling point: 1388ºC
Critical pressure: 25MPa
Saturated vapor pressure: 0.13kPa (739ºC)
Appearance: white crystalline powder
Solubility: easily soluble in water, ethanol, glycerol, insoluble in acetone, ether
| Item |
Quality Index |
Results |
| Total alkali content |
99.2% min |
99.51% |
| Chlorides (NaCl) |
0.7% max |
0.46% |
| Sulphate(SO4) |
0.03% max |
0.015% |
| Iron(Fe2O3) |
0.004% max |
0.001% |
| Water insoluble matter |
0.04% max |
0.01% |
| Result |
First grade |
Packaging Types
We can provide 25kg/50kg/1000kg bagor as per customers' requirements.
Caustic Soda (NAOH) Sodium Hydroxide
Packing
Packing: 1. 25kgs plastic woven bag with inner lining, customized also available.
2. 1 ton bags made of polypropylene lined with polyethylene
Delivery Detail: within 15 days after confirmation of the order.
Caustic Soda (NAOH) Sodium Hydroxide
Application
1. Used in the production of paper and cellulose pulp.
2. Used for the production of soap, synthetic detergents, synthetic fatty acids.
3. Used as cloth desizing agent, scouring agent and silk polish agent in textile printing .
4. Used in the production of borax, sodium cyanide, formic acid etc in the chemical industry.
Sodium hydroxide is mainly used in papermaking, cellulose pulp production and soap, synthetic detergent, synthetic fatty acid production and animal and vegetable oil refining. Textile printing and dyeing industry is used as cotton desizing agent, scouring agent and mercerizing agent. The chemical industry is used to produce borax, sodium cyanide, formic acid, oxalic acid, phenol, etc. The petroleum industry is used for refining petroleum products and in oil field drilling muds. It is also used in the production of aluminum oxide, metal zinc and metal copper surface treatment and glass, enamel, tanning, medicine, dyes and pesticides. Food-grade products are used as acid neutralizers in the food industry, peeling agents for citrus, peaches, etc., as well as detergents for containers such as empty bottles and cans, as well as decolorizers and deodorizers.
When sodium hydroxide is used as a basic reagent, it can be used as a neutralizing agent, a masking agent, a precipitating agent, a precipitation masking agent, a small amount of carbon dioxide and water absorbent, a color developer for the determination of ketosterol by thin layer analysis, etc. It is widely used. It is used in the manufacture of various sodium salts, soaps, pulp, finishing cotton fabrics, silk, viscose fibers, regeneration of rubber products, metal cleaning, electroplating, bleaching, etc.
In cosmetic creams, the saponification of sodium hydroxide and stearic acid acts as an emulsifier, which is used to make vanishing cream, shampoo and so on.
There are two kinds of caustic soda commonly on the market: liquid soda and solid soda. Liquid soda can be divided into 30% liquid base, 32% liquid base, 42% liquid base, 45% liquid base and 50% liquid base according to the mass fraction of sodium hydroxide. The mainstream specifications are 32% and 50%. At present, the output of liquid alkali accounts for more than 80% of the total, and 99% caustic soda accounts for about 14%. The soda ash circulating on the market is divided into light alkali and heavy alkali, both of which are in a solid state and are distinguished according to density. The bulk density of light alkali is 500-600kg/m3 and the bulk density of heavy alkali is 900-1000kg/m3. Heavy alkali accounts for about 50-60%, according to the price difference between the two has 10% adjustment space.
Pure sodium hydroxide is a white solid, readily soluble in water, and its aqueous solution is astringent and slippery. When sodium hydroxide is exposed to air, it tends to absorb water and gradually dissolves when the surface is wet. This phenomenon is called delixing. Its relative density is 2.130. Melting point 318.4ºC. Boiling point 1390ºC. There are two kinds of solid and liquid caustic soda on the market: pure solid caustic soda is white, block, flake, rod, granular, crisp; Pure liquid caustic soda is a colorless transparent liquid. Solid caustic soda has strong hygroscopicity. Easy to dissolve in water, when dissolving heat, water solution is alkaline, there is a sense of slippiness; Soluble in ethanol and glycerin; Insoluble in acetone and ether. Highly corrosive, corrosive to fiber, skin, glass, ceramics and so on. Reaction with aluminum and zinc, nonmetallic boron and silicon to produce hydrogen; Disproportionation reaction occurs with halogens such as chlorine, bromine and iodine. Neutralize with acids to form salts and water.
Certificate & Exhibition
FAQ:
Q: How long is your delivery time?
A:Normally within 15 days.Belongs to quantity.
Q:Can you provide samples ? Is it free?
A: Yes, Normally we offer 500g free sample for your testing.
Q: How about your payment terms?
A: We can accept TT payment, 100%LC at sight and DP.
If you have any other questions , please feel free to contact with us.
Our aim is to provide customers the high quality products, most competitive pricing, the
shortest delivery time and the unequaled service. To reach this, we keep our advantages:
many years experience
With our good experience, we offer detailed technical support and advice to assist customers. We
communicate closely with customers to establish their quality requirements.
Consistent Quality
Our plant has strict quality control in each manufacturing process. Our goods passed SGS
which quality can be control and guaranteed. Meanwhile all the materials are tested before each shipment in
our laboratory to double confirm the quality.
Most competitive pricing
With many years working experience, we always offer the most competitive pricing to customers to
help lower their cost in application.
Shortest delivery time
90% of orders are shipped within 15 days after receipt of the prepayment or workable L/C.
our factory have six production lines and one backup production line,can support any urgent orders.
Respond in 24 hours to inquiry, feedback or other requirements
Our experienced staff is dedicated to answer all of your inquires, feedback or other requirements in 24 hours.
We welcome you to contact us for more information and look forward to working with you.
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