Manufacturer Sodium sulfate CAS 7757-82-6
Zhishang Bio Sodium sulfate CAS 7757-82-6
CAS:7757-82-6 | Na2SO4 |MW：142.04214 | EINECS NO：231-820-9
Payment: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Transporta: Ocean, Land,Air, DHL，TNT
Port: Shanghai Port, Qingdao Port
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Describe Sodium sulfate
Sodium sulfate is a chemical raw material that is used to produce sodium sulfide, sodium silicate and other products. It is also used as a filler in synthetic detergents, and as a cooking ingredient for the production sulfate-pulp in the paper industry.
Also known as anhydrous Saltpeter or sodium sulfate. Small white monoclinic powder or crystals are the appearance. Relative density 2.68, melting point 884 . The aqueous solution, when dissolved in water is neutral.
The sodium sulfate dissolved in ethanol is insoluble. Sodium sulfate absorbs moisture easily when exposed to the air and turns into hydrated sodiumsulfate. At temperatures between 32.4 and 223 degrees, it becomes a polycrystalline homogeneous substance that takes on the shape of a diamond. It forms monoclinic crystalline structures at higher temperatures and hexagonal crystalline structures when it reaches 241°C.
Anhydrous sodium powder is a high purity anhydrous sodium salt with fine particles.
Two types of crystalline sodium sulfate hydrates exist: heptahydrate sodiumsulfate (Na2SO4*7H2O), which is a hexagonal or tetragonal white crystal that loses its water at 24.4.
A second type of sodium sulfate is sodium sulfite Na2SO4*10H2O. It’s also known as sodium silicate, sodium hydrosulfite, and saltpeter. Monoclinic colorless crystals with a melting temperature of 32.38 and a density of 1.46 g/cm3. It loses its crystalline form at 100 and turns into anhydrous sodium, which is soluble in both water and dry air.
The sodium sulfate is used in a variety of applications, including chemical analysis, dye detection, mordants in the printing and dying industry, for manufacturing Sodium sulfate and porcelain glazes, nitrogen measurements, paper pulp and as a diuretic and laxative in medicine.
Crystals of sodium sulfate precipitate in the sal pond during winter.
| Product Name: | Sodium sulfate |
| Synonyms: | Anhydrous sodium sulfate;Bisodium sulfate;bisodiumsulfate;Crimidesa;Crude sodium sulfate;dibasicsodiumsulfate;Disodium monosulfate;Disodium sulfate |
| CAS: | 7757-82-6 |
| MF: | Na2SO4 |
| MW: | 142.04214 |
| EINECS: | 231-820-9 |
| Product Categories: | Other Drying AgentsSynthetic Reagents; |
| Mol File: | 7757-82-6.mol |
| Sodium sulfate Chemical Properties |
| Melting point | 884 °C (lit.) |
| Boiling point | 1700°C |
| density | 2.68 g/mL at 25 °C (lit.) |
| bulk density | 1400-1600kg/m3 |
| refractive index | 1.484 |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | powder (fine) |
| pka | 4.76 |
| Specific Gravity | 2.68 |
| color | White |
| PH | 5.2-8.0 (50g/l, H2O, 20℃) |
| PH Range | 5.2 – 9.2 |
Sodium sulfate Application
Usage 1
The production of glass and paper requires a lot of sodium sulfate. About 70% of all sodium sulfate is used for papermaking and the cellulose industry.
It is neutral salt and is used in synthetic detergents. It can be added to detergents to reduce surface tension.
It is used as a dye diluent and auxiliary agent in dyeing and printing. It can be used to dye cotton fibers with direct dyes or sulfurized dyes.
In the chemical industry, sodium sulfate can be used to make sodium sulfide and other products such as gypsum or sodium silicate. A method of producing sulfuric, sulfuric, soda ash and ammoniumsulfate using sodium sulfate was developed. However, these methods are not widely used due to the high cost.
In the laboratory, sodium sulfate can be used to cool things down. Saltpeter is used in medicine as a laxative. The majority of sodium sulfate entering the body is retained in the gastrointestinal system and not absorbed. It can cause intestinal peristalsis, increase the volume of the intestines and maintain a certain level of permeability.
Antidotes for lead and barium poisoning include sodium sulfate. Lead poisoning can be treated with 10% saltpeter for gastric lavage, or by taking a 1-2% sodium-sulfate solution orally.
Usage 2
As an analytical reagent, sodium sulfate is also used as a mordant.
Usage 3
Agent for the manufacture of caramel pigment. Edible pigment diluent. Food processing can benefit from sodium sulfate.
Usage 4
Sodium sulfate mainly serves as a filler for synthetic detergents. In the paper industry, steamed and cooked agents are used to make kraft pulp. In the glass industry, soda ash is replaced. Chemical industry uses it to manufacture sodium sulfide and sodium silicate. Textile industry uses it to prepare coagulation baths for spinning vinylon. In the pharmaceutical industry, it is used as a laxative. Also used in leather, non-ferrous metals and other fields.
Usage 5
In medicine and other industries, such as glass, papermaking, printing, dyeing, synthetic fibres, and leather manufacturing, sodium sulfate is used to precipitate salts and as a coagulant.
Usage 6
Kjeldahl nitrogen determination. Dry organic liquid Test serum protein. Test serum protein
FAQ
It comes down to the presence of bound water within the crystal lattice. The calcined anhydrous grade (\(Na_{2}SO_{4}\)) is completely water-free, presenting as a dry white powder or fine granule with a powerful moisture-binding capacity—making it perfect as an industrial desiccant or detergent bulking agent. In contrast, decahydrated sodium sulfate (\(Na_2SO_4 \cdot 10H_2O\)), or mirabilite, carries ten molecules of crystallization water inside its structure. This hydration profile shifts its physical form into distinct white crystals, which industrial buyers primarily channel into specialized fluxing applications like glass manufacturing.
This versatile mineral salt anchors several high-volume manufacturing lines. Its absolute largest market share is as a functional processing aid and anti-caking filler in powder laundry detergents, where it ensures smooth material flow and prevents clumping. The second critical bottleneck it solves is in commercial glassworks; it acts as an indispensable fining agent to sweep away micro-bubbles from the molten glass bath while simultaneously shaving down the required melting energy. Outside of those sectors, processing mills funnel it into Kraft paper pulping, textile dye-bath fixing, and organic synthesis drying workflows.
Because this compound is highly hygroscopic, your logistics team must store the bags inside a bone-dry, well-ventilated warehouse facility. Keep the packaging drums or valve bags hermetically sealed to isolate the chemical from ambient humidity and rain during cross-docking. When maintained under stable room temperatures on pallets with proper floor clearance, the material will easily preserve its structural and chemical integrity for up to 5 full years. As a safety precaution, optimize your stacking footprint far away from strong acids and reactive metals like aluminum or magnesium alloys.
No, under standard international transport frameworks, it is treated as a stable, non-hazardous, and non-regulated commodity. It will not spontaneously ignite or explode. However, you must educate your material handlers on handling safety: if subjected to extreme thermal stress or open flames, it will decompose to emit hazardous sulfur dioxide (\(SO_{x}\)) and sodium oxide vapors. Furthermore, heavy airborne dust can cause respiratory tract irritation, and excessive ingestion can trigger gastrointestinal distress. Always manage runoff during washing to avoid dumping high concentrations into local aquatic ecosystems
Related References
Manufacturer of Sodium sulfate
Achievements
Advantage
Service
FAQ
Advice on Shipping
Achievements
Zhishang Bio is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang Bio will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Sodium sulfate manufacturer, Zhi shang Bio has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Advantage
Zhishang Bio is a professional enterprise engaged in the research and development, production, and sales of chemical raw materials. It has a strong supply chain system and strict quality control standards to ensure the provision of high-quality products with high purity and stability to customers.
Zhishang Bio’s core strength is its independent research and design capabilities. It has advanced production equipment, testing laboratories and can customize chemical raw materials to meet the market demands. This includes pharmaceuticals, electronic, coatings and agricultural applications.
Zhishang Bio’s supply chain management is based on long-term relationships with domestic and international suppliers of high quality to guarantee a stable supply, optimize logistic systems, and achieve efficient distribution. This helps reduce the cost of customer purchases.
We adhere to international environmental standards and we also adhere to the concept that environmental protection and safety production are important. All production processes must comply with these standards in order to guarantee that our products will be green and sustainable.
With a professional technical team and comprehensive after-sales service, Zhishang Bio can provide customers with precise technical support, solve application problems, and help customers enhance product competitiveness.
We are always customer-oriented and committed to becoming a trusted chemical raw material partner.
Service
Zhishang Biography is dedicated to using clients extensive and expert service, including chemical raw material. The customers will certainly receive hassle-free, efficient and one-stop options.
1. Custom-made Supply Solutions
Zhishang Bio provides tailored services for clients in the chemical basic material sector, including special bit dimension, solvent residue control, stability optimizations and more. Clients can personalize their services to satisfy details requirements in industries such as drugs, electronic devices, and finishings.
2. Strict quality assurance
Zhishang Bio utilizes advanced screening equipment and stringent quality examination procedures, in addition to various other files, to guarantee that every batch of products is certified with international criteria such ISO GMP, REACH, and so on. Customers are also given with full quality records and conformity documents.
The supply chain is secure
Zhishang Bio has actually established lasting calculated collaborations with worldwide makers of top notch raw materials to make certain a secure supply, maximize the storage facility and logistics system, and assistance both small-scale examinations and large orders. It adjusted to the changing requirements of clients by responding flexibly to these changes.
4. Technical support
Zhishang Bio’s technical group can offer suggestions on product applications, formula optimization and analysis of industry patterns to aid clients fix technological troubles during production and boost item efficiency.
5. Efficient after-sales service
Zhishang Bio provides complete monitoring, reacts to client requests and delivers promptly. This will certainly make certain customer complete satisfaction.
Zhishang Biography intends to help consumers expand their service by providing the very best solutions and chemical resources.
FAQ
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
Advice on Shipping
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
Company Info
Zhishang Bio company in China that exports chemicals, Cosmetic raw materials, and Intermediates for over 70 countries now.
And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.
The company integrates research and development, production, and trade, with a modern production base, advanced testing equipment, and an experienced technical team to ensure that products reach industry-leading levels in purity, stability, and environmental friendliness.
