Product Description

Sodium Metabisulfite from Loba India is supplied in a convenient 500gm pack for controlled textile dyeing, bleaching, dechlorination and laboratory chemical preparation. Also called sodium disulfite, sodium pyrosulfite or sodium metabisulphite, it is a water-soluble inorganic reducing agent with the formula Na2S2O5.

The product can support textile processes that require removal of residual oxidizing chemicals, reduction of unwanted colour and controlled chemical neutralization. Contact Inaya Scientific to confirm whether the supplied container is Extra Pure or AR/ACS grade, together with its article number, purity, current price and stock status.

Key Features

• Sodium metabisulfite in white crystalline powder form
• Also known as sodium disulfite, sodium pyrosulfite and sodium metabisulphite
• Chemical formula: Na2S2O5
• CAS number: 7681-57-4
• Molar mass: 190.10 g/mol
• Acts as a reducing and dechlorinating agent
• Highly soluble in water according to Loba product data
• Suitable for selected textile bleaching, dye correction and antichlor processes
• Useful for controlled laboratory and industrial chemical preparation
• Available in a convenient 500gm pack
• Loba India branded laboratory chemical
• Nationwide delivery available across Bangladesh

Loba product data describes Sodium Metabisulphite as a white crystalline solid with a sulphurous odour. Its aqueous solution is mildly acidic, and the material must be protected from moisture, direct sunlight and unnecessary air exposure.

Product Overview

Sodium Metabisulfite is an inorganic sulphite salt widely used where a controlled reducing action is required. When dissolved in water, it forms bisulfite-related species that can neutralize oxidizing substances and participate in reduction reactions.

In textile processing, the product may be used as a reducing bleaching agent, an antichlor chemical after chlorine-based treatment, and a neutralizer for selected oxidizing residues. It can also help remove unwanted dyes or discoloration when an approved textile recipe specifies sodium metabisulfite.

Loba lists both Extra Pure and AR/ACS 500gm variants. The Extra Pure product is Article No. 05935 with stated purity of 96.5%, while the AR/ACS product is Article No. 05937 with stated purity of 97%. Both Loba listings show a 60-month shelf life, but the expiry and storage period for the supplied batch must be checked on its label and Certificate of Analysis.

Because different grades have different impurity limits, buyers should confirm the exact grade before analytical, pharmaceutical, food-related or specification-sensitive use. This product page is intended primarily for textile, laboratory and approved industrial applications.

Main Applications

Textile Bleaching and Whiteness Correction

Sodium metabisulfite may be used as a reducing bleaching agent to address selected discoloration and oxidized colour residues. The required concentration and process conditions depend on the fibre, previous treatment and approved mill recipe.

Dechlorination and Antichlor Treatment

The chemical can neutralize residual chlorine after chlorine-based bleaching or washing processes. Proper dechlorination helps reduce the risk of continued oxidation that may weaken fibres or affect later dyeing and finishing stages.

Neutralization of Residual Oxidizing Agents

Sodium metabisulfite may be used to reduce selected oxidizing residues in textile baths and equipment-cleaning processes. Suitability for hydrogen peroxide or another oxidizer must be confirmed from the process method and chemical supplier guidance.

Dye Stripping and Colour Correction

Its reducing action can support selected dye-stripping, shade-correction and colour-removal processes. It is not a universal stripping agent, so the dye class, fibre type and recipe must be evaluated before use.

Textile Dyeing and Printing Processes

Sodium metabisulfite may be included in certain dyeing, printing or discharge formulations where a reducing environment is required. The exact function and dose depend on the dye system and technical recipe.

Laboratory Solution Preparation

The product may be used for reducing-agent solutions, chemical demonstrations, neutralization work and selected analytical procedures. AR/ACS grade should be confirmed when low impurity levels or analytical accuracy are required.

Water and Effluent Treatment

Sodium metabisulfite is commonly used to neutralize residual chlorine and other oxidizing agents in water-treatment systems. Textile facilities should use it only under an approved water-treatment or effluent-management procedure.

Key Benefits

Reducing action: It helps neutralize selected oxidizing agents and supports approved reduction processes.

Useful in textile finishing: It can be used in dechlorination, reducing bleaching, colour correction and selected dye-removal procedures.

Water-soluble form: The powder dissolves readily, allowing controlled solution preparation when handled correctly.

Multiple grade options: Loba offers both Extra Pure and AR/ACS variants, allowing buyers to select a grade based on process requirements.

Convenient pack size: The 500gm pack is practical for textile laboratories, quality-control teams, educational laboratories and small process trials.

Document-based purchasing: The Loba article number, grade, purity, COA and SDS can be checked before specification-sensitive use.

Who Should Buy This Product?

This product is suitable for textile dyeing laboratories, textile mills, washing plants, dye houses, quality-control departments and garment-processing facilities that require sodium metabisulfite for approved reduction or neutralization processes.

It may also be suitable for educational laboratories, research facilities, water-treatment teams, chemical formulation units and industrial laboratories. Buyers requiring analytical work should confirm whether the supplied product is AR/ACS grade.

The 500gm pack is generally practical for laboratory testing, pilot work and small-volume requirements. Continuous production facilities should contact Inaya Scientific to confirm bulk quantities or larger available packs.

Usage and Handling Summary

Sodium Metabisulfite must be handled by trained personnel according to the product label, Safety Data Sheet and workplace chemical procedure. Wear suitable protective gloves, protective clothing and eye or face protection, and avoid breathing dust or sulphur dioxide fumes.

Measure the required amount accurately and add it gradually to water using compatible equipment and adequate ventilation. Always follow the approved textile recipe or laboratory method, because concentration, temperature, pH and addition sequence can change the result.

Do not mix sodium metabisulfite with acids unless a qualified procedure specifically requires it. Contact with acids can release toxic sulphur dioxide gas, creating a serious inhalation hazard.

If the product enters the eyes, rinse cautiously with water for several minutes and seek immediate medical attention. If swallowed or if exposure causes illness, contact a medical professional or poison centre promptly and follow the SDS first-aid instructions.

Limitations and Important Considerations

• The exact Loba grade and article number have not been supplied.
• Loba lists both Extra Pure and AR/ACS 500gm variants with different purity and impurity specifications.
• Do not assume purity or analytical suitability from the product name alone.
• Request the current Certificate of Analysis when assay or impurity limits are important.
• Textile dosage must follow a qualified recipe and mill procedure.
• Suitability depends on fibre type, dye class, previous processing and target result.
• The material is harmful if swallowed and can cause serious eye damage.
• Contact with acids can release toxic sulphur dioxide gas.
• Protect the product from moisture, direct sunlight and unnecessary air exposure.
• Keep the container tightly closed in a dry, well-ventilated chemical storage area.
• Do not claim food, pharmaceutical or medical suitability without confirming the exact grade and applicable documentation.
• Confirm batch expiry, shelf life and storage instructions from the supplied label or COA.

Contact Inaya Scientific for confirmation of the exact grade, article number, purity, batch documentation, COA, SDS and suitability for the intended application.

Available Pack Sizes or Variations

The confirmed requested pack size is:

500gm Sodium Metabisulfite – Loba India

Loba officially lists 500gm, 1kg, 5kg, 25kg and 50kg packs for both the Extra Pure and AR/ACS variants. Bangladesh stock may differ, so contact Inaya Scientific for confirmation of available grades, pack sizes and bulk quantities.

Sodium Metabisulfite Price in Bangladesh

The current price of Sodium Metabisulfite Loba India 500gm in Bangladesh is available on request. The final price may depend on the exact grade, article number, purity, batch, import cost and current stock.

Contact Inaya Scientific for an updated retail price, institutional quotation or bulk-order rate. Mention whether you require Extra Pure or AR/ACS grade when requesting a quotation.

Availability and Delivery in Bangladesh

Sodium Metabisulfite Loba India 500gm is available from Inaya Scientific subject to stock confirmation. Nationwide delivery is available across Bangladesh.

Delivery conditions may depend on the destination, quantity and chemical-handling requirements. Buyers should provide the required grade, quantity, organisation name, delivery location and intended application when requesting a quotation.

Why Buy From Inaya Scientific?

Inaya Scientific supplies laboratory chemicals, textile-processing materials and scientific products to professional customers in Bangladesh. Product details can be checked before ordering so buyers receive the required brand, grade and pack size.

Customers can contact Inaya Scientific for:

• Current stock and Bangladesh price confirmation
• Loba grade and article-number verification
• Purity and pack-size confirmation
• COA and SDS availability
• Textile laboratory and industrial chemical sourcing
• Bulk and institutional quotations
• Nationwide delivery support

Frequently Asked Questions

1. What is Sodium Metabisulfite used for?

Sodium Metabisulfite is used as a reducing agent, dechlorinating chemical and antioxidant in approved industrial and laboratory processes. In textiles, it may be used for reducing bleaching, antichlor treatment, colour correction and neutralization of selected oxidizing residues.

2. Is Sodium Metabisulfite the same as Sodium Disulfite?

Yes, Sodium Metabisulfite and Sodium Disulfite commonly refer to the same compound with the formula Na2S2O5. It is also known as sodium pyrosulfite or sodium metabisulphite.

3. Can Sodium Metabisulfite be used in textile dyeing?

Yes, Sodium Metabisulfite can be used in selected textile dyeing and finishing processes that require reducing action. The correct dose and method depend on the dye class, fibre, pH, temperature and approved textile recipe.

4. Can it remove residual chlorine after textile bleaching?

Yes, Sodium Metabisulfite is commonly used as an antichlor agent to neutralize residual chlorine. The treatment must be controlled carefully to avoid under-treatment, excess chemical residue or unwanted sulphur dioxide release.

5. What is the grade and purity of this Loba 500gm product?

The exact grade cannot be confirmed from the supplied product information. Loba lists a 500gm Extra Pure variant at 96.5% purity and a 500gm AR/ACS variant at 97% purity, so the bottle label and article number should be checked before purchase.

6. What is the price of Loba Sodium Metabisulfite 500gm in Bangladesh?

The current Bangladesh price is available from Inaya Scientific on request. Pricing can vary according to grade, article number, import cost, batch and stock availability.

7. How should Sodium Metabisulfite be stored?

Sodium Metabisulfite should be stored in its original, tightly closed container in a dry, cool and well-ventilated area. Keep it protected from moisture, direct sunlight, unnecessary air exposure, acids and incompatible chemicals.

8. What happens if Sodium Metabisulfite contacts acid?

Contact with acid can release toxic sulphur dioxide gas. The chemical should therefore never be mixed with acids outside a qualified, ventilated and controlled procedure.

9. What is the difference between Sodium Metabisulfite and Sodium Dithionite?

Both are reducing agents, but they are different chemicals with different strength, stability and textile uses. Sodium Dithionite is widely used for vat and sulphur dye reduction, while Sodium Metabisulfite is commonly used for dechlorination, reducing bleaching and selected colour-correction processes.

10. Where can I buy Sodium Metabisulfite in Bangladesh?

Sodium Metabisulfite Loba India 500gm can be ordered from Inaya Scientific, subject to current stock confirmation. Inaya Scientific provides nationwide delivery and supports textile, laboratory, educational and institutional orders across Bangladesh.

Order From Inaya Scientific

Order Sodium Metabisulfite Loba India 500gm from Inaya Scientific for textile dyeing, bleaching, dechlorination, laboratory work and approved 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, exact Loba grade, article number, purity, pack size, specifications and delivery conditions.