What is Sodium Sulphate in Hindi? Industrial Buyer’s Guide to Na2SO4

If you’ve ever wondered ‘what is sodium sulphate in hindi?’—known as सोडियम सल्फेट (Sodium Sulfate) in Hindi—you’re not alone. This versatile inorganic compound (Na2SO4) plays a critical role in industries from detergent manufacturing to glass production. In this comprehensive guide, we’ll cover everything industrial buyers need to know: the chemical’s fundamental characteristics, its unique drying mechanism, bulk pricing insights, and real‑world applications. Whether you’re a procurement manager sourcing anhydrous sodium sulphate or a technical engineer evaluating filler options, this article provides the expert knowledge you need to make informed decisions.

सोडियम सल्फेट क्या है? (What is Sodium Sulphate in Hindi?)

Sodium sulphate (Na2SO4) is the sodium salt of sulfuric acid. In Hindi, it is called सोडियम सल्फेट. When dissolved in water, it yields a neutral solution and is widely available in two forms: anhydrous (the dry powder) and decahydrate (Glauber’s salt). The anhydrous form is a white crystalline solid that absorbs moisture readily, making it an excellent filler and desiccant. While the search query often comes from students or curious individuals, the industrial significance of this chemical cannot be overstated—it is a backbone material for sectors like detergents, glass, textiles, and kraft paper pulping.

For Hindi-speaking procurement executives, understanding the term is just the start. When you source sodium sulphate anhydrous for your factory, you’re dealing with a high‑purity chemical (typically 99% min) that directly influences product quality, process efficiency, and cost. Hailei Chemical supplies this crucial raw material to buyers across Asia, the Middle East, and Africa, ensuring technical consistency with every shipment.

Key Physical and Chemical Properties of Sodium Sulphate

To fully appreciate sodium sulphate’s role in manufacturing, one must grasp its physicochemical fingerprint. The following characteristics define its behaviour in formulations and processes:

• Appearance: White crystalline powder or granules, odourless.
• Molecular Formula: Na2SO4 (anhydrous). Molar mass 142.04 g/mol.
• Purity: Industrial grades typically ≥99% anhydrous Na2SO4 (dry basis); the remainder is mostly chloride and moisture.
• Melting Point: 884 °C. It is thermally stable up to this temperature, making it suitable for high‑temperature glass melting.
• Density: 2.68 g/cm³ (anhydrous), which gives bulk density values around 1.2–1.4 g/cm³ depending on particle size.
• Solubility in Water: Exhibits a unique solubility curve that peaks at about 32.4 °C (49.7 g/100 mL), then decreases slightly at higher temperatures. This property is exploited in controlled release applications.
• pH: A 5% aqueous solution is neutral (pH 6.0–8.0), ensuring compatibility with many formulations.
• Hygroscopicity: Anhydrous sodium sulphate readily absorbs moisture to form the decahydrate (Na2SO4·10H2O), a feature crucial in drying organic solutions.

These characteristics of sodium sulphate make it an ideal inert filler, flow aid, and process chemical. The high melting point and neutral pH, for instance, are why glass batching formulations incorporate it to reduce melting temperature and improve workability without affecting the glass colour. When you’re evaluating suppliers, always request a certificate of analysis (CoA) to verify these parameters—especially purity and chloride content, which can cause corrosion in high‑temperature furnaces.

How Does Sodium Sulfate Dry a Solution? The Drying Mechanism Explained

A common search among chemists and pharmaceutical manufacturers is ‘how does sodium sulfate dry a solution’. The answer lies in its hydration chemistry. Anhydrous sodium sulphate acts as a desiccant by forming stable hydrates. When added to a wet organic solvent (e.g., ethyl acetate, dichloromethane), it rapidly binds water molecules, creating the decahydrate (Glauber’s salt) as a separate solid phase. The reaction is: Na2SO4 (anhydrous) + 10 H2O → Na2SO4·10H2O.

Because the decahydrate is poorly soluble in organic media, the drying agent can be simply filtered out, leaving a dry organic layer. This method is preferred over magnesium sulfate in certain applications because sodium sulphate is less acidic and has a larger capacity for water per gram at low temperatures (up to 1.2 g H2O/g of anhydrous salt). Industrial users with solvent‑recovery systems also appreciate that sodium sulphate is non‑toxic and easily disposed of.

For procurement managers in the textile or chemical auxiliary industry, understanding this mechanism matters. If your dyeing auxiliaries or solvent‑based formulations require a consistent moisture level, the quality and particle size of the anhydrous sodium sulphate you purchase will directly impact drying efficiency. Hailei Chemical supplies a finely milled grade with high surface area to maximize water absorption rates, ensuring your process remains reproducible batch after batch.

Sodium Sulphate Bulk Price: Factors Affecting Cost for Industrial Procurement

When you search ‘sodium sulphate bulk price’, you’re looking for more than a number—you need to understand what drives those figures in global markets. As a leading Chinese exporter, Hailei Chemical offers competitive pricing shaped by several factors:

• Feedstock and Production Route: The majority of synthetic sodium sulphate is a by‑product of viscose rayon manufacture or produced from natural brine sources. Fluctuations in rayon demand or salt lake output in China directly influence supply. Natural sulphate from deposits is also common; its mining cost and logistics add to the final price.
• Purity and Grade: A 99% pure, low‑chloride grade for detergent fillers commands a different price than technical grades with slightly higher impurities. Buyers requiring ultra‑low iron for clear glass will pay a premium.
• Packaging and Transportation: Bulk shipments in 25 kg or 1‑tonne jumbo bags, or loose bulk in containers, have different cost structures. Shipping from Chinese ports (Qingdao, Shanghai) to your destination adds freight, and current container rates heavily influence landed cost.
• Order Volume: Prices per metric ton drop significantly when ordering FCL (full container load) quantities, typically 20–27 MT per 20‑ft container. Long‑term contracts with stable off‑take can lock in favourable terms.

While spot prices can range between $200 and $350 per ton FOB China depending on the above factors, the most reliable way to get a current quotation is to contact a dedicated team like Hailei’s. Request a bulk quote at our quotation page and we’ll provide a detailed offer based on your specific purity needs, packaging preference, and delivery port. Our export‑oriented logistics ensure prompt dispatch with all necessary documentation (CoA, MSDS, packing list).

Industrial Applications: Detergents, Glass, Textiles, and Pulp & Paper

The versatility of sodium sulphate is unmatched. Here’s how different sectors put this chemical to work:

Detergent Powder Filler

In laundry powder manufacturing, sodium sulphate serves as a low‑cost bulking agent that also aids in free‑flowing properties. It dilutes the active surfactants (like linear alkylbenzene sulfonate) to a convenient concentration for the consumer while preventing caking. A typical heavy‑duty detergent may contain 20‑40% Na2SO4 by weight. Buyers in this sector prize consistent bulk density and low iron content to avoid specking on white fabrics.

Glass Manufacturing

Glass factories use sodium sulphate as a fining agent and flux. In the batch, it helps oxidise organic impurities and promotes the removal of bubbles during melting. The sulphate dissociates to release SO3, which finely disperses gas bubbles and clarifies the melt. For clear container glass and float glass, low‑iron grades (< 50 ppm Fe) are essential to maintain high light transmittance. Hailei Chemical can supply glass‑grade sodium sulphate meeting these stringent specifications.

Textile Dyeing Auxiliary

In the textile industry, sodium sulphate is used as a levelling agent in reactive and direct dyeing processes. It promotes even dye uptake by regulating the ionic strength of the dyebath, preventing uneven colour and spots. Anhydrous sodium sulphate is preferred because it dissolves rapidly and contributes minimal water to the bath, allowing precise control. Purity is critical; chloride impurities can corrode dyeing machines or react with dyestuffs.

Kraft Paper Pulping

In the kraft process, sodium sulphate is added to the black liquor recovery cycle as a makeup chemical. It is reduced to sodium sulphide in the recovery furnace, replenishing the sulphidity of the pulping liquor. While the requirement per ton of pulp is modest (10‑20 kg/ton), a reliable, consistent supply is vital to maintain digester performance. Hailei Chemical’s technical‑grade sodium sulphate is widely used by pulp mills across Southeast Asia for this purpose.

Quality Specifications and Purity for Industrial Sodium Sulphate (99% Anhydrous)

When drafting a purchase specification for sodium sulphate, industrial buyers should include the following typical parameters for a 99% anhydrous grade, as supplied by Hailei Chemical:

• Assay (Na2SO4, dry basis): ≥ 99.0%
• Moisture: ≤ 0.2%
• Chloride (as Cl): ≤ 0.05% (or tighter for glass grade)
• Iron (as Fe): ≤ 20 ppm (detergent), ≤ 50 ppm (standard), or ≤ 15 ppm for glass
• Water‑Insoluble Matter: ≤ 0.1%
• pH (5% solution): 6.0‑8.0
• Bulk Density (tapped): 1.2‑1.4 g/cm³
• Particle Size: 90% passing 40 mesh (425 microns) for standard grade; finer grades available on request.

Always align the specification with your end‑use. A detergent filler may tolerate slightly higher chloride, but a glassmaker must insist on ultra‑low iron. Hailei Chemical’s quality control lab tests every batch and supplies a full CoA with shipment. We can also customise packaging and labelling to meet your warehouse requirements, including marking in Hindi if desired for Indian buyers.

Sourcing Sodium Sulphate: Why Hailei Chemical is Your Reliable Supplier

Choosing the right sodium sulphate supplier goes beyond price. You need a partner who understands industrial chemistry and can ensure consistent quality shipment after shipment. With over a decade of experience as a China‑based fine chemical exporter, Hailei Chemical has built a reputation for:

• Unmatched Purity and Consistency: Our Na2SO4 is sourced from top domestic manufacturers and re‑checked by our own QC team.
• Flexible Supply: From one container trial orders to long‑term annual contracts, we scale with your needs.
• Full Documentation: CoA, MSDS, and necessary certificates of origin are always included.
• Multilingual Support: Our team can communicate with Hindi‑speaking buyers, simplifying order processing and after‑sales service.

Make your next procurement step simple. Visit our sodium sulphate product page for detailed specifications, or request a bulk quote today. Our experts are ready to answer technical questions and provide a competitive landed‑cost estimate for your facility.