Product Description
Sodium Dithionite from Loba India is an 85% Extra Pure reducing agent supplied in a 500gm pack for controlled textile dyeing, vat-dye reduction, colour stripping and laboratory applications. It is also commonly known as sodium hydrosulfite, sodium hydrosulphite or hydrose in textile processing.
This water-soluble white crystalline powder helps convert selected water-insoluble vat and sulphur dyes into a soluble reduced form before application to the fibre. The exact dosage, temperature, alkali level and addition sequence must follow the approved dye recipe, process instructions and workplace safety procedure.
Key Features
- 85% Extra Pure grade from Loba Chemie
- Loba Article No. 05865
- Chemical formula: Na₂S₂O₄
- CAS number: 7775-14-6
- Molar mass: 174.11 g/mol
- White crystalline powder with a slightly sulphurous odour
- Soluble in water
- Acts as a strong reducing agent in selected textile processes
- Suitable for controlled vat, sulphur and indigo dyeing applications
- 500gm laboratory pack
- Officially listed shelf life of 24 months under specified storage conditions
- Nationwide delivery available across Bangladesh, subject to stock and transport confirmation
Product Overview
Sodium Dithionite is an inorganic reducing agent with the formula Na₂S₂O₄. In the textile industry, it is widely known as sodium hydrosulfite, sodium hydrosulphite or hydrose. Its reducing action is especially useful when a dye must be converted into a temporary water-soluble form before it can penetrate the fibre.
Loba Chemie identifies this product as 85% Extra Pure, with an iodometric assay specification of 85–87% at the time of batch analysis. The manufacturer lists it as a white crystalline, water-soluble solid with a pH of 7–9 for a 5% solution.
The product can lose reducing strength after exposure to moisture, heat or air. Prepared solutions are generally process-sensitive and should be made according to the approved method rather than stored for later use.
Main Applications
Vat Dyeing
Sodium dithionite is used to reduce selected vat dyes into their soluble leuco form. After the dye enters the fibre, controlled oxidation converts it back into the insoluble coloured form.
Indigo Dyeing
It is commonly used as a reducing agent in indigo vats for denim, yarn and fabric processing. The required reducing conditions depend on the indigo system, alkali, temperature and oxidation-reduction potential.
Sulphur Dyeing
Sodium dithionite may be used in selected sulphur-dye processes where controlled reduction is required. Compatibility and process dosage must follow the dye supplier’s technical instructions.
Colour Stripping and Shade Correction
The chemical can support controlled reductive colour removal, stripping and shade-correction processes for suitable dyes. Results vary by fibre, dye class, previous treatment and process conditions.
Reduction Cleaning
It may be used in selected textile reduction-cleaning or after-treatment procedures where residual unfixed colour must be removed. The process should be validated for the fabric and dye system.
Textile Laboratory Trials
The 500gm pack is practical for shade development, recipe testing, quality-control trials and research work in textile laboratories.
Laboratory Reducing Agent
Sodium dithionite can be used as a reducing agent in approved laboratory methods and chemical preparation. Method suitability depends on the required grade, concentration and impurity limits.
Key Benefits
Effective reducing action: It helps establish the low oxidation-reduction conditions required for selected vat, sulphur and indigo dyeing processes.
Useful for textile process control: The product supports dye solubilisation, colour stripping and selected reduction-cleaning operations when used under an approved recipe.
Verified Loba specification: The listed product is identified as 85% Extra Pure with Article No. 05865.
Convenient 500gm pack: This size may suit textile laboratories, educational institutions, research facilities and small production trials.
Water-soluble form: The powder can be incorporated into controlled process solutions according to the specified method.
Who Should Buy This Product?
This product is suitable for textile dyeing laboratories, denim and garment-washing facilities, dye houses, textile mills, quality-control departments, educational institutions, research laboratories and trained industrial users who require sodium dithionite in a 500gm pack.
It may also be suitable for organisations conducting vat-dye, sulphur-dye, indigo, stripping or reduction-cleaning trials. Large-scale production users should confirm whether the 500gm pack meets their process volume and whether larger packs are available in Bangladesh.
This product is a laboratory and industrial chemical. It should not be assumed suitable for food, pharmaceutical, medical or household use.
Usage and Handling Summary
Sodium dithionite must be handled by trained personnel in accordance with the Loba product label, Safety Data Sheet and the organisation’s chemical-handling procedure. Use suitable protective gloves, protective clothing, chemical goggles or safety glasses, and appropriate respiratory protection where dust exposure may occur.
The product is classified by Loba as a self-heating substance that may catch fire and as harmful if swallowed. Keep it away from heat, sparks, direct sunlight, open flames, combustible materials and unauthorised access.
Contact with acids can release toxic gas. Do not mix it with acids or other chemicals unless the process has been formally assessed and approved by qualified personnel.
For textile use, measure the required amount accurately and follow the approved dyeing recipe. Do not estimate dosage, temperature, pH or addition sequence, because incorrect reduction conditions may cause weak fixation, uneven shades, fibre damage or excessive chemical consumption.
Limitations and Important Considerations
- The supplied product is 85% Extra Pure and should not be treated as a higher-purity analytical grade.
- The reducing strength may decline after exposure to moisture, air, sunlight or unsuitable temperatures.
- Prepared solutions are process-sensitive and should be used according to the approved method.
- Incorrect dosage or addition timing can affect vatting, colour yield, shade consistency and wastewater load.
- The product is self-heating and may catch fire under unsafe storage or handling conditions.
- It is harmful if swallowed and must not be used for food or household purposes.
- Contact with acids can release toxic gas.
- Keep away from heat sources, sparks, combustible materials and direct sunlight.
- The container should remain tightly closed in a cool, dry and well-ventilated storage area.
- Confirm batch COA, SDS, manufacture date and expiry or retest information before critical use.
- Waste and process effluent must be managed according to applicable workplace and environmental requirements.
Available Pack Sizes or Variations
The product covered on this page is Sodium Dithionite Loba India, 85% Extra Pure, 500gm, Article No. 05865.
Loba also lists 25kg and 50kg packings for the same article. Current availability of these larger packs in Bangladesh has not been confirmed. Contact Inaya Scientific for confirmation of pack size, stock and bulk-order options.
Sodium Dithionite Price in Bangladesh
The current price of Sodium Dithionite Loba India 500gm in Bangladesh is available on request. Price may vary according to current stock, batch, import cost, exchange rate, freight and delivery requirements.
Contact Inaya Scientific for the latest retail price, institutional quotation or bulk-order rate. Mention Loba Article No. 05865 and the required quantity when requesting a quotation.
Availability and Delivery in Bangladesh
Sodium Dithionite Loba India 500gm is available from Inaya Scientific subject to current stock and transport confirmation. Nationwide delivery is available across Bangladesh.
Because this product is regulated for transport as Sodium Dithionite, UN 1384, Class 4.2, delivery method and timing may depend on quantity, destination and carrier acceptance. Contact Inaya Scientific for confirmation before placing an urgent order.
Why Buy From Inaya Scientific?
Inaya Scientific supports scientific, laboratory, textile and institutional buyers across Bangladesh with product-information confirmation and order assistance.
- Current price and stock confirmation
- Loba brand, article number and pack-size verification
- Grade, purity and batch-detail confirmation
- COA and SDS availability checks
- Textile laboratory and process-chemical sourcing
- Bulk and institutional quotation support
- Nationwide delivery coordination across Bangladesh
Frequently Asked Questions
- What is Sodium Dithionite used for?
Sodium Dithionite is mainly used as a reducing agent in vat dyeing, indigo dyeing, selected sulphur-dye processes, colour stripping and laboratory work. It helps convert certain insoluble dyes into a temporary soluble form that can enter the textile fibre.
- Is Sodium Dithionite the same as sodium hydrosulfite or hydrose?
Yes, sodium hydrosulfite, sodium hydrosulphite and hydrose are common names used for Sodium Dithionite in textile and industrial markets. Buyers should still verify the formula, purity, grade and product code because commercial products may have different specifications.
- Can Loba Sodium Dithionite be used for vat and indigo dyeing?
Yes, this 85% Extra Pure product can support controlled vat and indigo dyeing when the process specification accepts this grade. Dosage, alkali level, temperature and addition sequence must follow the approved dye recipe.
- What is the grade and purity of this Loba product?
This Loba product is listed as Extra Pure with a stated purity of 85% and an iodometric assay specification of 85–87% at batch analysis. Its article number is 05865, and the supplied pack size is 500gm.
- What is the price of Sodium Dithionite Loba 500gm in Bangladesh?
The current Bangladesh price is available from Inaya Scientific on request. Price can change with stock, import cost, batch, freight and delivery location, so obtain an updated quotation before ordering.
- How is Sodium Dithionite used in textile dyeing?
Sodium Dithionite is added according to a validated dyeing recipe to create the reducing conditions required by selected dyes. The exact quantity and process sequence depend on the dye class, fabric, alkali, temperature, liquor ratio and production method.
- How should Sodium Dithionite be stored?
Store Sodium Dithionite in its tightly closed original container in a cool, dry, fire-resistant and well-ventilated place. Protect it from sunlight, heat, sparks, combustible materials, moisture and acids, and follow the Loba Safety Data Sheet.
- What is the shelf life of Loba Sodium Dithionite?
Loba lists a shelf life of 24 months for Article No. 05865. Actual usability depends on the batch date, sealed packaging and correct storage, so confirm the label and batch documents before use.
- What is the difference between Sodium Dithionite and Sodium Metabisulfite?
Sodium Dithionite and Sodium Metabisulfite are different chemicals with different formulas, reducing strengths and process behaviour. They are not automatically interchangeable in textile recipes, so use the chemical specified by the dye or process method.
- Can Inaya Scientific supply bulk or institutional orders?
Yes, Inaya Scientific accepts enquiries for institutional and bulk requirements, subject to supplier stock and transport conditions. Provide the required quantity, organisation name, delivery location and intended application to receive a quotation.
Order From Inaya Scientific
Order Sodium Dithionite Loba India 500gm from Inaya Scientific for approved textile dyeing, laboratory and industrial applications.
Seller: Inaya Scientific
Mobile: +880 1778-492798
WhatsApp: 01620247815
Email: inayascientific@gmail.com
Website: www.inayascientific.com
Delivery: Nationwide delivery across Bangladesh
Before ordering, contact Inaya Scientific to confirm the current price, stock, Loba Article No. 05865, grade, purity, pack size, batch documents and delivery conditions.
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