Dextran Sulphate Sodium Salt Price vs. Anhydrous Sodium Sulphate: A Buyer’s Guide

When procurement teams search for dextran sulphate sodium salt price, they are often looking for a high‑purity specialty chemical used in biomedical research — not the commodity inorganic salt that powers detergent factories, glass furnaces, and textile mills. However, the search overlap between these two very different substances creates confusion for industrial buyers who need reliable, cost‑effective sodium sulphate for large‑scale manufacturing. At Hailei Chemical, we specialise in industrial‑grade anhydrous sodium sulphate with 99% purity, supporting sectors from detergent powder filling to kraft pulping. This guide clarifies the price dynamics of dextran sulphate sodium salt, explains how they differ from standard sodium sulphate, and delivers actionable sourcing intelligence for B2B purchasers.

What Influences Dextran Sulphate Sodium Salt Price?

Dextran sulphate sodium salt (DSS) is a sulphated polysaccharide derived from dextran. It is primarily used to induce colitis in laboratory mice, serving as a preclinical model for inflammatory bowel disease. Its production involves complex chemical modification, stringent purification (typically < 0.5% free sulphate), and small‑batch synthesis, all of which contribute to a price tag measured in hundreds to thousands of euros per gram. The dextran sulphate sodium salt price is driven by:

• Research‑grade quality standards – molecular weight ranges (e.g., 36,000–50,000 Da), low endotoxin levels, and certificate of analysis documentation.
• Low‑volume demand – global consumption is measured in kilograms, not tonnes, preventing economies of scale.
• Stringent logistics – cold‑chain storage and rapid delivery add to landed costs.

Industrial buyers who mistakenly type “dextran sulphate sodium salt price” when they actually require anhydrous sodium sulphate can be misled by these figures. Hailei Chemical does not supply DSS, but we help customers navigate this language gap to source the right chemical: a high‑purity, cost‑effective Na2SO4 for large‑scale industry.

Industrial Anhydrous Sodium Sulphate: Properties, Formula, and Major Applications

Sodium and Sulphate Chemical Formula

The chemical formula Na₂SO₄ (two sodium ions and one sulphate ion) defines both the anhydrous form and its decahydrate counterpart (Glauber’s salt). As a neutral salt of a strong acid (H₂SO₄) and strong base (NaOH), sodium sulphate is chemically stable, non‑toxic, and does not release hazardous fumes under normal handling. For industrial buyers, the anhydrous grade is preferred because it offers >99% Na₂SO₄ content, low moisture (< 0.1%), and excellent flowability.

Key Specifications of Anhydrous Sodium Sulphate

Hailei’s standard export grade meets the following typical parameters:

• Purity: ≥ 99.0% (on dry basis)
• Moisture: ≤ 0.1%
• Whiteness: ≥ 90% (Hunter L value)
• pH (1% solution): 6.0 – 8.0
• Particle size: 200–300 µm (customised upon request)
• Insoluble matter: ≤ 0.05%

Such consistency is critical for detergent formulators who need a uniform filler, and for glass makers where even minor impurities can create colour defects or refractory stone.

How Detergent, Glass, Textile, and Pulp Industries Rely on High‑Purity Anhydrous Sodium Sulphate

Detergent Powder Filler

Sodium sulphate acts as an inert bulking agent that reduces the active surfactant content per wash dose without sacrificing perceived value. Its crystalline structure improves powder density, reduces caking, and aids in spray‑drying processes. Because it does not interfere with the surfactant system, it is the cost‑effective choice to stretch expensive detergent actives. Buyers consistently compare anhydrous sodium sulphate price per tonne against alternatives like sodium chloride, but the non‑corrosivity and handling safety of Na₂SO₄ make it the filler of choice.

Glass Manufacturing

In flat glass and container glass batches, sodium sulphate serves as a fining agent and a source of Na₂O. It decomposes at high temperatures, releasing SO₂ that helps refine the melt and remove bubbles. Properly sized anhydrous granules (< 1 mm) dissolve evenly in the batch, preventing seed formation. Purity directly impacts glass clarity — a 99% Na₂SO₄ from Hailei guarantees minimal iron and other colouring oxides.

Textile Dyeing Auxiliary

Sodium sulphate is a standard level‑dyeing agent for direct and reactive dyes on cellulose fibres. By increasing the ionic strength of the dyebath, it promotes even dye exhaustion and prevents patchy colour uptake. The anhydrous form dissolves easily and leaves no residual alkalinity that could affect dye fixation. Hailei’s consistent particle size ensures rapid dissolution, reducing cycle time for textile mills.

Kraft Paper Pulping

In the kraft process, sodium sulphate is added to the recovery boiler as a make‑up chemical to compensate for sulphur losses. It is reduced to sodium sulphide, which is the active delignification agent. The anhydrous salt’s high purity avoids the introduction of silica or calcium that could foul evaporators and recovery boilers. Pulp mills typically order bulk shipments (1,000‑kg supersacks or 25‑kg bags) on long‑term contracts, making supplier reliability as important as price.

What Determines Anhydrous Sodium Sulphate Price?

Unlike the high and volatile dextran sulphate sodium salt price, industrial sodium sulphate is a commodity with moderate price fluctuations driven by:

• Feedstock and production route – Natural sodium sulphate from brine or lake deposits is cheaper than synthetic by‑product from rayon or HCI neutralisation processes. Hailei sources from high‑purity mineral deposits to offer competitive pricing.
• Energy costs – Anhydrous salt requires dehydration and calcination; fuel prices directly impact manufacturing cost.
• Logistics and packaging – Freight, container availability, and bagging requirements (25‑kg woven PE bags, 1,000‑kg big bags, or bulk) influence the landed price.
• Market supply‑demand balance – Seasonal demand from detergents and glass industries can push spot prices upward.

For a 20‑tonne FCL of 99% anhydrous sodium sulphate, B2B buyers can expect prices per metric tonne to be a fraction of the per‑gram DSS price. When evaluating offers, understand the incoterm (FOB Qingdao or CIF port) and whether the quote includes palletisation and fumigation.

Sodium Lauryl Sulphate Price vs. Sodium Sulphate: Why They’re Not Interchangeable

A frequent source of confusion in procurement databases is the mix‑up between sodium lauryl sulphate price and sodium sulphate. Sodium lauryl sulphate (SLS) is a surfactant derived from coconut or palm kernel oil, widely used in personal care products and industrial cleaners. Its cost structure, regulatory oversight, and supply chain are entirely different. SLS commands a much higher price per kilogram because of multi‑step synthesis and the need for high‑active matter content (≥ 90%).

Attempting to substitute sodium sulphate with SLS — or vice versa — will compromise finished‑product performance. Detergent factories need the bulking properties of sodium sulphate, while SLS provides foaming and detergency. Hailei supplies only the former, but we often advise buyers who search “sodium lauryl sulphate price” to double‑check their part numbers and technical data sheets before ordering. A common mistake is assuming the two are interchangeable because both contain “sulphate” in the name. In reality, their chemical structures serve completely different functions.

Experienced procurement teams know that specification sheets are the final authority. For instance, a detergent manufacturer sourcing sodium sulphate should look for the CAS number 7757-82-6, not the 151-21-3 used for SLS. Getting this wrong can halt production lines and incur costly change‑over fees. When in doubt, request a free sample from your supplier for a quick dissolution test — it will confirm whether you have the right material.

Practical Sourcing Tips for Industrial Buyers

Whether you need sodium sulphate for detergents, glass, textiles, or pulp, here are some practical considerations:

• Start with the right search terms – Use “anhydrous sodium sulphate price per tonne” or “Na2SO4 bulk supplier” rather than “dextran sulphate sodium salt price” to avoid irrelevant results.
• Request a certificate of analysis (CoA) – Always verify purity, moisture, and particle size against your process requirements. A CoA from a reputable supplier like Hailei provides traceability.
• Consider logistics early – For large orders (20+ tonnes), compare FOB vs. CIF pricing. Factor in port charges, customs duties, and inland freight. A slightly higher FOB price can sometimes be offset by lower shipping costs.
• Negotiate on volume and contract length – Many suppliers offer tiered pricing: spot (1-5 tonnes), mid-term (10-20 tonnes per quarter), and long-term (annual contracts). The latter can lock in favourable rates.
• Check for customs classification issues – Sodium sulphate falls under HS code 2833.11. Make sure your documentation is accurate to avoid delays at the border.

Why Hailei Chemical for Anhydrous Sodium Sulphate?

At Hailei Chemical, we have been serving the global industrial market for over a decade. Our anhydrous sodium sulphate is produced from high‑purity mineral deposits, ensuring consistent 99% Na2SO4 content and low moisture. We offer flexible packaging options — from 25‑kg bags to 1,000‑kg supersacks — and can customise particle size for specific applications. Our logistics team handles FOB, CIF, and door‑to‑door shipments, with typical lead times of 15–20 days from Qingdao port.

We do not supply dextran sulphate sodium salt, but we are happy to help you distinguish between these chemicals. If you have any questions about specifications, pricing, or application, contact our technical sales team. We can provide free samples, CoAs, and tailored advice for your production process.