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Opportunity in Sodium Sulfide Flakes Business From Sulfur and Caustic Soda

Capacity Sodium Sulfide Flakes 10,000 MT Per Annum Plant and Machinery cost 282.00 Lakhs
Working Capital 0.00 Rate of Return (ROR) 30.00 %
Break Even Point (BEP) 49.00 % TCI 0.00 Lakhs
Cost of Project 1426.00Lakhs


Sodium Sulfide Flakes, scientifically known as Na2S. This unique compound dissolves effortlessly in water, opening up a wide array of applications and uses. Not only does it play a significant role in the pulp & paper industry, but it also stands as a pivotal player in water treatment processes, textile manufacturing, and ore flotation among others.

However, as much as Sodium Sulfide Flakes are versatile and useful, they require a considerable level of caution during handling. This compound holds a corrosive personality and can produce toxic hydrogen sulfide gas when it comes into contact with acids. The bright yellow color, the flake form, and the crucial roles it plays, make Sodium Sulfide Flakes an integral player in the exciting world of chemistry.

Production of Sodium Sulfide from Sulfur and Caustic Soda

The production of sodium sulfide (Na2S) from sulfur and caustic soda (sodium hydroxide, NaOH) involves a chemical reaction where these two substances are combined. The process can be described as follows:

Reaction Setup: The production process begins by preparing a reaction vessel where sulfur and caustic soda will be combined. Sulfur is typically in a solid form, while caustic soda is usually used in a concentrated aqueous solution.

Mixing of Reactants: Sulfur and caustic soda are then mixed together. The caustic soda solution is usually heated to increase the reaction rate. In this step, care must be taken to control the reaction conditions, such as temperature and concentration, to ensure safety and efficiency.

Chemical Reaction: The chemical reaction between sulfur and caustic soda can be represented by the equation:


In this reaction, sulfur reacts with sodium hydroxide to form sodium sulfide and water.

Cooling and Crystallization: After the reaction, the mixture is cooled. Sodium sulfide, which is soluble in water, can crystallize out of the solution upon cooling.

Separation and Purification: The crystallized sodium sulfide is then separated from the liquid phase, typically through filtration. Additional purification steps may be required to remove impurities and achieve the desired purity level of the sodium sulfide.

Drying and Packaging: The purified sodium sulfide is dried and then packaged for storage and transportation.

It's important to note that the production of sodium sulfide using this method must be conducted with proper safety measures due to the caustic nature of the reactants and the potential for hazardous byproducts. Additionally, the specific conditions and equipment used can vary depending on the scale and desired purity of the sodium sulfide product.

Uses and Application

Here are some common uses and applications of sodium sulfide flakes:

·         Mining Industry: Sodium sulfide is used in the mining industry for ore flotation. It helps separate valuable minerals from unwanted impurities by making the minerals hydrophobic, allowing them to be easily separated from water.

·         Chemical Manufacturing: Sodium sulfide is a key reagent in the production of various chemicals. It is used as a reducing agent in organic synthesis and in the preparation of other sulfur compounds.

·         Textile Industry: Sodium sulfide is employed in the textile industry for sulfur dyeing. It is used to color fabrics and create sulfur-based dyes for clothing and textiles.

·         Pulp and Paper Industry: In the pulp and paper industry, sodium sulfide is used in the pulping process to break down wood chips and separate the fibers. It aids in the removal of lignin, which is essential for paper production.

·         Water Treatment: Sodium sulfide is sometimes used in water treatment processes to remove heavy metals and as a reducing agent for the removal of chlorine and chloramine from water.

·         Leather Tanning: In leather production, sodium sulfide is used in the dehairing and deliming processes to prepare animal hides for tanning. It helps soften the hides and remove hair and unwanted materials.

·         Wastewater Treatment: Sodium sulfide can be used in wastewater treatment plants to precipitate heavy metals, allowing for the removal of pollutants from industrial wastewater.

·         Photography: In traditional black and white photography, sodium sulfide is used as a component in developing solutions to process photographic film and prints.

·         Flotation in Mineral Processing: Sodium sulfide is employed as a flotation agent in mineral processing to separate valuable minerals from gangue materials by making the minerals hydrophobic.

·         Oil and Gas Industry: It is used in the drilling and exploration of oil and gas wells for sulfur scavenging and as a reducing agent.

Future of Sodium Sulfide in Industries

The global sodium sulfide market is projected to reach around US$ 672 million by the end of 2027, in terms of revenue, growing at CAGR of 3.4% during the forecast period (2019-2027). Sodium Sulfide is a chemical compound that is alkaline in nature when exposed to air and smells like rotten eggs. It has a wide range of application across pulp and paper industry, textile industry, water treatment, and various chemical manufacturing. Sodium sulfide is also used in the photographic industry for protecting the developer solution from being getting oxidize. It is also used to produce elastic synthetic products, sulfur colors, and leather products.

The factor expected to drive the sodium sulfide market is the rise in need for clean water. Sodium sulfide is one of the compounds used treatment of water and has high demand from countries around the world. Amidst the rise in polluting water sources, the demand for treating water has grown which is expected to drive the market.


Starting a business in Sodium Sulfide Flakes not only offers a lucrative opportunity but also a chance to contribute to vital sectors of society. With its bright future prospects, cost-effective production, and growing demand, a venture into the world of Sodium Sulfide Flakes may very well be your ticket to a successful entrepreneurial journey.

Key Players

·         Sankyo Kasei

·         Shaanxi Fuhua Chemical

·         ISSC (IRSS)

·         Nafine Chemical Industry

·         Xinxing Chem

·         PPG Industries

·         Jiaxin Chemical

·         Tessenderlo Group

·         Novochrom

·         Sichuan Meishan Tianhe Chemical

·         Guangxin Chemical

·         Solvay

·         ICS Industriechemikalien Schwefelnatrium

·         Xinji Chemical Group

·         Longfu Group

·         Shenhong Chemical

·         Inner Mongolia Lichuan Chemical

·         Yabulai Salt Chem

·         HaMi HongShan Chemistry

·         Rahul Barium Chemicals


  • One Lac / Lakh / Lakhs is equivalent to one hundred thousand (100,000)
  • One Crore is equivalent to ten million (10,000,000)
  • T.C.I is Total Capital Investment
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  • Caution: The project's cost, capacity and return are subject to change without any notice. Future projects may have different values of project cost, capacity or return.



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Our Market Survey cum Detailed Techno Economic Feasibility Report Contains following information:



Ø  Introduction

·         Project Introduction

·         Project Objective and Strategy

·         Concise History of the Product

·         Properties

·         BIS (Bureau of Indian Standards) Provision & Specification

·         Uses & Applications


Ø  Market Study and Assessment

·         Current Indian Market Scenario

·         Present Market Demand and Supply

·         Estimated Future Market Demand and Forecast

·         Statistics of Import & Export

·         Names & Addresses of Existing Units (Present Players)

·         Market Opportunity


Ø  Raw Material

·         List of Raw Materials

·         Properties of Raw Materials

·         Prescribed Quality of Raw Materials

·         List of Suppliers and Manufacturers


Ø  Personnel (Manpower) Requirements

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Ø  Plant and Machinery

·         List of Plant & Machinery

·         Miscellaneous Items

·         Appliances & Equipments

·         Laboratory Equipments & Accessories

·         Electrification

·         Electric Load & Water

·         Maintenance Cost

·         Sources of Plant & Machinery (Suppliers and Manufacturers)


Ø  Manufacturing Process and Formulations

·         Detailed Process of Manufacture with Formulation

·         Packaging Required

·         Process Flow Sheet Diagram


Ø  Infrastructure and Utilities

·         Project Location

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·         Rates of the Land

·         Built Up Area

·         Construction Schedule

·         Plant Layout and Requirement of Utilities


Project at a Glance

Along with financial details as under:


  •     Assumptions for Profitability workings

  •    Plant Economics

  •    Production Schedule

  •    Land & Building

            Factory Land & Building

            Site Development Expenses

  •    Plant & Machinery

             Indigenous Machineries

            Other Machineries (Miscellaneous, Laboratory etc.)

  •    Other Fixed Assets

            Furniture & Fixtures

            Pre-operative and Preliminary Expenses

            Technical Knowhow

            Provision of Contingencies

  •   Working Capital Requirement Per Month

             Raw Material

            Packing Material

            Lab & ETP Chemical Cost

           Consumable Store

  •   Overheads Required Per Month And Per Annum

         Utilities & Overheads (Power, Water and Fuel Expenses etc.)

             Royalty and Other Charges

            Selling and Distribution Expenses

  •    Salary and Wages

  •    Turnover Per Annum

  •   Share Capital

            Equity Capital

            Preference Share Capital


  •    Annexure 1:: Cost of Project and Means of Finance

  •    Annexure 2::  Profitability and Net Cash Accruals


                Expenses/Cost of Products/Services/Items

                Gross Profit

                Financial Charges     

                Total Cost of Sales

                Net Profit After Taxes

                Net Cash Accruals

  •   Annexure 3 :: Assessment of Working Capital requirements

                Current Assets

                Gross Working. Capital

                Current Liabilities

                Net Working Capital

                Working Note for Calculation of Work-in-process

  •    Annexure 4 :: Sources and Disposition of Funds

  •    Annexure 5 :: Projected Balance Sheets

                ROI (Average of Fixed Assets)

                RONW (Average of Share Capital)

                ROI (Average of Total Assets)

  •    Annexure 6 :: Profitability ratios


                Earnings Per Share (EPS)


             Debt Equity Ratio

        Annexure 7   :: Break-Even Analysis

                Variable Cost & Expenses

                Semi-Var./Semi-Fixed Exp.

                Profit Volume Ratio (PVR)

                Fixed Expenses / Cost 


  •   Annexure 8 to 11:: Sensitivity Analysis-Price/Volume

            Resultant N.P.B.T

            Resultant D.S.C.R

   Resultant PV Ratio

   Resultant DER

  Resultant ROI

          Resultant BEP

  •    Annexure 12 :: Shareholding Pattern and Stake Status

        Equity Capital

        Preference Share Capital

  •   Annexure 13 :: Quantitative Details-Output/Sales/Stocks

        Determined Capacity P.A of Products/Services

        Achievable Efficiency/Yield % of Products/Services/Items 

        Net Usable Load/Capacity of Products/Services/Items   

       Expected Sales/ Revenue/ Income of Products/ Services/ Items   

  •    Annexure 14 :: Product wise domestic Sales Realisation

  •    Annexure 15 :: Total Raw Material Cost

  •    Annexure 16 :: Raw Material Cost per unit

  •    Annexure 17 :: Total Lab & ETP Chemical Cost

  •    Annexure 18  :: Consumables, Store etc.,

  •    Annexure 19  :: Packing Material Cost

  •    Annexure 20  :: Packing Material Cost Per Unit

  •    Annexure 21 :: Employees Expenses

  •    Annexure 22 :: Fuel Expenses

  •    Annexure 23 :: Power/Electricity Expenses

  •    Annexure 24 :: Royalty & Other Charges

  •    Annexure 25 :: Repairs & Maintenance Exp.

  •    Annexure 26 :: Other Mfg. Expenses

  •    Annexure 27 :: Administration Expenses

  •    Annexure 28 :: Selling Expenses

  •    Annexure 29 :: Depreciation Charges – as per Books (Total)

  •   Annexure 30   :: Depreciation Charges – as per Books (P & M)

  •   Annexure 31   :: Depreciation Charges - As per IT Act WDV (Total)

  •   Annexure 32   :: Depreciation Charges - As per IT Act WDV (P & M)

  •   Annexure 33   :: Interest and Repayment - Term Loans

  •   Annexure 34   :: Tax on Profits

  •   Annexure 35   ::Projected Pay-Back Period And IRR