Caustic Soda Flakes

CAUSTIC SODA (NaOH/ Sodium hydroxide) is one of the most basic alkaline raw materials in the chemical industry and is widely used in many fields. The main downstream industries include: aluminum oxide, printing and dyeing, chemical fiber, chemical industry, pulp and papermaking, water treatment, petroleum, military industry, light industry, pharmaceutical, lithium battery, metallurgy, electroplating, soap, purification of coal tar products, food processing, wood processing, mechanical industry, cleaning, and disinfection.

 

WHAT HONGXING PROVIDES AS A PARTNER?

1.Reliable Supply

HONGXING is always prepared to fulfill orders as they're placed and deliver the product customers need.

2.Efficient communication

The Company has a professional team to provide you with 24-hour service wholeheartedly, including reply to inquiry, product consulting, issuing contracts, order follow-up, quality control, logistics and shipping, and real-time exchange of information and resources with partners.

3.Company credit

The Company has been rated as AAA-rated credit enterprise for many years. The Company strictly abides by the contract, has won consistent praise from upstream and downstream customers, and is trustworthy.

4.Product quality

Direct contact with large factories, stable supply chain. The manufacturers selected by the Company are all large and listed companies and have quality management system certification, including (LOGO) IAF, CNAS, etc. We will help you control the quality, and all products strictly follow the national standards.

5.Professional services

The Company provides customers with one-stop supply chain services including product selection, production scheduling, quality control, logistics, customs and delivery. Our areas of expertise include communication with upstream manufacturers to customize products and schedule production, real-time follow-up on the production line and checking the product quality. When the supply and demand of products are tight and the manufacturer stops production for maintenance, we can cooperate with other upstream partners to schedule production to ensure the delivery date, and coordinate with the highway administration, shipping companies, customs and other departments to solve the problems of cumbersome factory communication, long production cycle and slow delivery. Strictly control all aspects of the contract and ensure delivery of goods with high quality and high efficiency.

6.Product customization

One-on-one professional service to meet personalized requirements.

7.Payment method

We will prefer the payment method that is safe for both the supplier and the buyer. If the buyer intends to cooperate for a long time, we are willing to offer favorable condition on the deposit and discount.

8.Industry benchmark

The Company builds a learning organization, is brave in exploration and aggressive. Through our own efforts, we are constantly recognized by the industry and customers. We aim to become an industry benchmark enterprise.

 

CAUSTIC SODA FLAKES SPECIFICATION-ION EXCHANGE MEMBRANE

Product Name: Caustic Soda (Sodium Hydroxide ,Solid)

Country of origin: China

Description: White Flakes

Molecular Formula: NaOH

Molecular Weight: 40.0

Grade:  Industry

IMDG Hazard class: 8

UN Number:  1823

Packaging group: Ⅱ

HS Number:  2815110000

CAS Number: 1310-73-2

Packing: In 25 kgs plastic woven bag

 

Specifications:
Analysis Items	Standard	Unit
Appearance	White Flakes
Assay(as NaOH):	98.5 Min	%
Sodium Carbonate(Na2CO3):	0.8 Max	%
Sodium Chloride(NaCl):	0.05Max	%
Iron(Fe2O3):	0.008Max	%

 

You can download caustic soda flakes MSDS sheet under “Home / Product Catalog”

 

 

Application of Sodium Hydroxide in Chemical Industry

In the chemical industry, sodium hydroxide is used to make sodium metal and electrolyze water. Sodium hydroxide or sodium carbonate is used in the production of many inorganic salts, especially in the preparation of some sodium salts (e.g. sodium tetraborate decahydrate, sodium silicate, sodium phosphate, sodium dichromate, sodium sulfite, etc.). Sodium hydroxide or sodium carbonate is also used in the synthesis of dyes, drugs and organic intermediates.

 

Application of Sodium Hydroxide in Cleaning

NaOH solution can be used for preparation of various cleaning agents, such as car washing liquid, bottle washing agent, cleanser essence, rust remover and disinfectant. It is mainly used for cleaning of bottles in wine industry, and surface treatment in ceramic and metal industry.

 

Application of Sodium Hydroxide in Water Treatment

Sodium hydroxide is used in the following topics in water treatment: water purification; elimination of the hardness of water; adjustment of the pH value of water; neutralization of the wastewater; removal of heavy metal ions in water by precipitation; and regeneration of ion exchange resin, etc.

In sewage treatment plants, sodium hydroxide can reduce the hardness of water through neutralization reaction. In the industrial field, it is regenerating agent for ion exchange resin regeneration. Sodium hydroxide has strong alkalinity and relatively high solubility in water, so the use amount can be measured easily and it can be conveniently used in various fields of water treatment.

 

Application of Sodium Hydroxide in Pharmaceutical Industry

Stomach medicine: Its ingredients are aluminum hydroxide, magnesium hydroxide, sodium bicarbonate and a small amount of sodium hydroxide, and its main function is to neutralize gastric acid.

 

Application of Sodium Hydroxide in Dyeing and Chemical Fiber Industry

To dye cotton fabrics in the printing and dyeing industry, the covers on the surface of cotton fibers, such as wax, grease, pectin, etc. shall be removed, and the impurities can be removed by soaking and cooking with dilute alkaline solution at an appropriate temperature. In order to make the dye penetrate into the inner layer of the fiber during dyeing, the dye should be expanded and softened before dyeing. Short-time treatment with concentrated caustic soda solution can make the fiber molecules arranged in oriented manner and the mercerizing color of the fabrics can be increased. After the treatment, the fine fibers (velveteen) on the fiber surface can be corroded by caustic soda, the dyeing will be more uniform and there will be no patches of different depths. A large amount of caustic soda is needed in the cotton printing and dyeing industry.

 

Alkali cellulose can be obtained from cellulose after treatment by caustic soda. Then treat the alkali cellulose into cellulose xanthogenate with carbon disulfide, dissolve it in dilute alkali into viscose liquid, then spin and coagulate it to obtain viscose fiber. It is usually called artificial cotton, artificial wool and artificial silk in the market. Production of 1 ton of artificial wool consumes 1 ton of caustic soda.

 

Application of Sodium Hydroxide in Papermaking Industry

Caustic soda plays an important role in the papermaking industry. Because of its strong corrosiveness, it is used in the process of boiling and bleaching paper sheets. At the same time, the raw materials of papermaking are mainly wood or grass. These plants contain cellulose and quite a lot of non-cellulose (lignin, gum, etc.), and the fiber can be chemically treated. Use ferrous sulfate or alkaline solution to steam and boil the raw materials, and according to the characteristics that the dilute alkali cannot react with cellulose but can corrode and dissolve non-cellulose components, produce the pulp with cellulose as the main component. This kind of pulp fiber is long, the tensile force of the paper is strong.

 

To dye cotton fabrics in the printing and dyeing industry, the covers on the surface of cotton fibers, such as wax, grease, pectin, etc. shall be removed, and the impurities can be removed by soaking and cooking with dilute alkaline solution at an appropriate temperature. In order to make the dye penetrate into the inner layer of the fiber during dyeing, the dye should be expanded and softened before dyeing. Short-time treatment with concentrated caustic soda solution can make the fiber molecules arranged in oriented manner and the mercerizing color of the fabrics can be increased. After the treatment, the fine fibers (velveteen) on the fiber surface can be corroded by caustic soda, the dyeing will be more uniform and there will be no patches of different depths. A large amount of caustic soda is needed in the cotton printing and dyeing industry.

 

Synonym:

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