5 Tips to Buy Caustic Soda

5 Tips to Buy Caustic Soda

5 tips to buy caustic soda:

In a competitive world which there are hundreds of manufacturers, suppliers and exporters of caustic soda, importers and end-users have a difficult job to consider all the important factors of a good purchase, and make the best choice. In this article, we want to share some useful information about the ways how an importer can make a better decision to buy caustic soda considering these tips;

1- Choose the right supplier:

Regardless of the fact that the supplier is a manufacturer or a trader, it should be able to give you the most competitive and smoothest services. Your right caustic soda supplier should be able to offer you reasonable rates, and deliver the cargo on the due time. Your caustic soda supplier should also be able to offer you smooth shipping services with economical rates. Sometimes, the goods’ price is ok, but the freight charge is deal breaker. So, your supplier should be reliable in the market and get the most competitive rates from the top key players in shipping industry of the country.

Last and most important point is that your supplier must be honest and fulfill all the commitments they promise.

For example, imagine you have invested a considerable amount to buy caustic soda, or have guaranteed to a tender contract to supply caustic soda for a private or governmental sector in your country. Your supplier gives you the proforma invoice, and promise to deliver the cargo within one week after they receive the payment from you. You pay the amount, but receive the cargo only after a delay of 20 days. In this way, no money or product quality can compensate for your credit loss in front of your local customers. So, a reliable and honest supplier should be the most important factor for you to buy caustic soda.

2- Don’t get carried away with unbelievable caustic soda prices:

It is always a nice dream to find a price which is below the range of market price, and make a huge profit. But, the English say “we are not that rich to buy cheap things.”

Sometimes you may face with unbelievable prices from a caustic soda manufacturer or trader. Good for you, congrats! But, before proceeding to pay and place the order, we highly recommend to check the below possibilities;

  • The cargo may have been kept at the warehouse for a long time. It may have lost the purity, or shape. You may pay for caustic soda flakes, but once you receive the cargo at your destination, you see that you have bought caustic soda lumps which are stuck to each other like a mass of stone-shape, and there are not any flakes!!
  • The manufacturer may use salt, low quality caustic soda lye and other impurities for producing caustic soda flakes in order to reduce their production costs. In this case, the specifications may not match your requirement at all.

Sometimes, a manufacturer or trader may offer those unbelievable prices to promote its product and brand, and the quality of the cargo may also be ok. But, it is necessary to check the cargo quality and specifications to prevent any risk for the amount you are going to pay to such supplier.

Click Here to Read About Our Caustic Soda Flakes 99%!

3- Consider the supply capacity:

Basically, there are two types of caustic soda manufacturers; chlor-alkali plants and factories that buy caustic soda lye and make it flakes.

Most of those chlor-alkali plants have bigger production capacities. So, if you want to place bulk orders like 500 MT and above, and would like to receive the whole quantity in a short time, these factories can be your suitable choice.

The second type of manufacturers may have smaller production capacity, but they care about their customers more and seem to be more flexible about the price, quality, payment term and customer-care services comparing to those giant chlor-alkali plants in order to keep the relationship with their customers and make them satisfied to buy from them.

So, depending on your quantity requirement, you should note the production capacity and delivery time of the supplier you are going to buy from.

4- Try to buy caustic soda on CFR/CPT basis:

As a foreign customer located in another country thousands of miles away from the supplier’s location, it is very difficult to take the cargo on EXW or FOB basis, and arrange the shipment on your own. Especially, as there are some limitations for shipping from Iran, you may get confused which shipping company can do the job for your shipment, how you should arrange the shipping documentation, which port is better and closer to your final destination, which shipping line has shorter transit time for your destination, and etc. all these factors are fundamental in logistics in order to prevent any risk and control your import costs to buy caustic soda.

So, it is an important necessity to buy caustic soda from a supplier who is expert in international transportation, and can deliver the cargo to your destination in a smooth way with cost-effective rates.

5- Check the supplier’s accountability in the market:

Once the market gets booming for a specific product in a country, so many people may decide to rent a workshop and start producing that product. They may not have any professional experience in manufacturing that product. So, there are so many risks to buy from a new-established manufacturer.

Our suggestion is that regardless of the adverts and claims the new manufacturer may do, you should check its accountability in the market, its product quality and specification, and also check their packing quality before placing any order with them. Checking the details before paying any money will keep you on the safe side.

You can have a better choice to buy from a caustic soda supplier which has many years of experience in the same field in the local market and knows all the territory manufacturers in details, have strong buiness relationship with giant governmental  chlor-alkali plants and reliable caustic soda producing workshops. So, that supplier can keep your back, and arrange your caustic soda orders in the smoothest way on regular basis.

 

Related product:

Caustic Soda Flakes 98-99%

 

© 2018 Reza Heydari All Rights Reserved.


Detergent Chemicals

Detergent Chemicals

Tejaras Co. is a major manufacturer, exporter, and supplier of detergent chemicals located in the Middle East. State-of-the-art manufacturing facilities of detergent chemicals and raw materials in top governmental plants, has made us able to supply highest quality detergent chemicals and raw materials at most competitive prices.

Caustic Soda

Caustic soda in 2 types are used in detergent industry; caustic soda liquid 48-50% and caustic soda flakes 98-99%. Caustic soda ( sodium hydroxide ) is one of the most important raw materials in manufacture of detergent chemicals. It is used in saponification, the process that converts vegetable oils into soap. Caustic soda is also used to produce anionic surfactants which are largely used in detergent chemicals and cleaning products.

Linear Alkyl Benzene Sulfonic Acid ( LABSA 96-97% )

LABSA, sulfonic acid also known as acid slurry is one of other major detergent chemicals we export. LABSA is the most common anionic surfactant for synthetic detergent powder. There are some important factors that detergent manufacturers prefer sulfonic acid to other anionic surfactants. We can point out good solubility in water, high detergency and foaming, and economical prices among those important factors.

Soda ash light ( sodium carbonate )

soda ash also known as washing soda is also among major detergent chemicals. Soda ash is used as the builder ( washing auxiliary ) in detergent industry. Its main application is to be used as a solvent which can remove a wide range of stains. Also, soda ash can be dissolved in water in order to create a pre-soaking solution for tough stains like coffee, tea, blood, grease, and oil.

Sodium Lauryl Ether Sulfate ( SLES 70% )

SLES, sodium lauryl ether sulfate, also known as Texapon is one of other major detergent chemicals we supply and export. SLES is widely used in liquid detergent such as shampoo, hand washing liquid, dishwashing detergent, and bubble bath liquid.

Sodium hypochlorite

Sodium hypochlorite is the most powerful home bleach. Using sodium hypochlorite aids detergent products in the removal of stains and soil. Once sodium hypochlorite is used in the wash, it acts as a disinfectant on bacteria and viruses and generally whitens most natural-fiber fabrics like cotton.


sodium sulfide manufacturer

Sodium sulfide manufacturing methods and applications

Sodium sulfide production methods:

Sodium sulfide (Na2S) is a yellow to red solid material soluble in water, slightly soluble in alcohol. It is a strong reducing agent and reacts with oxidant.

No commercial process for the production of sodium sulfide containing neither water nor iron is known. The commercially available sodium sulfide is in every case produced by reduction of sodium sulfate, usually by means of carbon, but also by means of hydrogen and other reducing gases. Reduction with carbon yields a crude melt, which contains, in addition to sodium sulfide, considerable amounts of impurities and by-products such as unreacted carbon, ash constituents, impurities from the carbon, carbonates, sulphites, sodium thiosulfates, and iron compounds. This crude melt is usually extracted with water so that the water-soluble part of the impurities and considerable amounts of iron pass into the extraction liquor. Other reactions take place subsequently in the aqueous solution, and these lead to undesirable by-products. by evaporating the extraction liquor, either crystals of the composition Na S.9H O are obtained or with further evaporation, a product containing 60% of Na S solidifies from the melt. Both hydrates, namely the hydrate crystallising from the solution and containing 32% of Na S, contain considerable amounts of soda, sulfite, thiosulfate, sulfate, and iron salts. The commercially available substance containing 60% Na is colored a dark reddish brown by the iron and can scarcely be used for certain purposes such treatment of textiles. It is not technically or economically possible to reduce the residual 40% of water content by further evaporation on account of the extraordinarily steep rise in the melt temperature above 60% of Na-S and since a suitable material for use in making the necessary apparatus which is resistant to concentrated sodium sulphite melt is unknown. Even evaporation to only 60% of Na S necessitates the use of apparafus made from expensive special alloys or causes heavy wear on other materials.

A process has now been discovered for obtaining a sodium sulphide of excellent purity by reduction of sodium sulphate with carbon or other reducing agents, which sulphide is in particular free from iron and water. The process is based on the fact that anhydrous sodium sulphide, unlike the hydrate, dissolves readily in alcohols.

Claim1: In a process for the production of pure anhydrous sodium sulfide free from iron, the step which comprises heating the melt obtained by reduction of sodium sulfate with carbon and which contains impurities resulting from the reduction process, with an alcohol, filtering the sodium sulfide solution thereby formed and recovering the sodium sulfide from the said solution by evaporating the alcohol.

 

It is known that sodium hydroxide may be reacted with H2S to form Na2S which may be treated with more H2S to convert Na2S to NaHS, and it has been proposed to make sodium hydrosulfide by gassing an Na2S-NaHS liquor with pure hydrogen sulfide.

In processes of the type to which the invention relates, the source of sodium is commercial caustic soda which contains appreciable quantities of impurities, such as iron, copper, nickel, manganese and silicon. These impurities do not discolor caustic soda to any great extent, and hence their presence in commercial caustic is unobjectionable. However, during H2S gassing of commercial caustic liquor, such impurities pass thru the process and are carried into the resulting NaHS liquor. Such impurities may be present in the NaHS liquor as soluble salts or suspended in finely divided condition. While probably largely sulfides, exact compositions of the impurities are not known, and whatever their nature, these subtances are referred to herein as metallic impurities. The presence of even small amounts of these impurities in Na2S or NaHS solutions results in products of very poor appearance because of the highly colored nature of the impurities after having been subjected to H2S gassing. Accordingly, a major problem presented in manufacture of relatively pure sodium hydrosulfide has been the elimination of such impurities.

Commercially available hydrogen sulfide gases contain appreciable amounts of carbon dioxide as an impurity.

Claim2: the method for producing purified sodium sulfide from a sodium hydrosulfide liquor containing (a) at least one metallic impurity of the group consisting of iron, copper, nickel, manganese, and silicon, and (b) an amount of available carbonate of sodium equivalent to more than 0.06% by weight of CO3 radical, which method comprises treating said liquor with an alkaline earth compound so as to react with available carbonate of sodium to precipitate combined CO3 thereof as alkaline earth carbonate, the amount of said alkaline earth compound being at least sufficient to reduce the available carbonate of sodium content of said liquor to an amount equivalent to not more than 0.06% by weight of CO3 radical, controlling the composition of the resulting liquor so that such liquor contains not more than 5% by weight of sodium sulfide, thereby effecting coagulation and precipitation of metallic impurities, and separating said metallic impurities from such liquor.

 

Claim3: The method for producing purified sodium sulfide from a sodium hydrosulfide liquor containing (a) metallic impurities of the type present in commercial sodium hydroxide, and (b) an amount of available carbonate of sodium equivalent to more than 0.06% by weight of COA radical, which method comprises treating said liquor with an alkaline earth compound so as to react with available carbonate of sodium to precipitate combined Cos thereof as alkaline earth carbonate, the amount of said alkaline earth compound being at least sufficient to reduce the available carbonate of sodium content of said liquor to an amount equivalent to not more than 0.06% by weight of Cos radical, controlling the composition of the resulting liquor so that such liquor contains not more than 5% by weight of sodium sulfide, thereby, effecting coagulation and precipitation of metallic impurities, and separating said metallic impurities from such liquor.

 

Sodium sulfide applications:

Sodium sulfide is one of the main chemicals and raw materials in so many industries such as mining industry, leather industry, metallurgy industry, textile industry, dyes and intermediates, pulp and paper, soda ash manufacturing, metal refining industry.

 

Sources:

http://www.freepatentsonline.com

https://patents.google.com

Related products:

Sodium sulphide flakes 60%

 

 

© 2018 Tejaras Co. All Rights Reserved