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Aluminum sulfate, white granules, white powder, iron-free aluminum sulfate, industrial aluminum sulfate, water treatment aluminum sulfate

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CAS No.:

10043-01-3

Grade:

Industrial Grade

Content:

16%

Port:

Qingdao Port

Brand:

zhencheng

Packaging:

25 kg packed in PE film and woven bag

Price valid (until):

2026-04-02

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Henan Zhencheng Environmental Protection Technology Co., Ltd

Company Type:

Manufactory

Location:

China

Qualification:

Main Products:

Polyacrylamide,Polyaluminum Chloride,Poly Ferric Sulfate,Aluminium Sulfate,Activated Carbon / Activated Charcoal,Quartz Sand Filter Media

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Product Description
Seller Information
Inquiry History

Description

Detailed Description of Aluminum Sulfate Product

I. Basic Overview of the Product

Shop Aluminum sulfate, white granules, white powder, iron-free aluminum sulfate, industrial aluminum sulfate, water treatment aluminum sulfate-Detailed Image 1

Aluminum sulfate (chemical formula: Al₂(SO₄)₃) is a classic inorganic sulfate. At room temperature, its most stable form is the octadecahydrate (Al₂(SO₄)₃·18H₂O), which appears as glossy, colorless granular or powdery crystals. Industrial-grade products may be white or slightly gray due to small amounts of impurities, and some may have a slight yellowish surface due to ferrous sulfate impurities. It is odorless, has a astringent taste, and its aqueous solution is acidic. This product is easily soluble in water, acids, and alkalis, but insoluble in alcohols. It starts to decompose when heated to 770°C. When stored in the air for a long time, it is prone to moisture absorption and caking. After hydrolysis, it can form basic salts and colloidal precipitates of aluminum hydroxide. It is a widely used inorganic chemical raw material, finding applications in multiple industrial fields such as water treatment, papermaking, textiles, and fire protection. It has multiple functions including flocculation, color fixation, and sizing, with outstanding cost performance, making it a commonly used additive in industrial production.

II. Product Application Characteristics

(1) Core Applications

The applications of aluminum sulfate cover multiple industrial fields, among which papermaking and water treatment are its two main application scenarios, accounting for approximately 90% of the global total output. The specific applications are as follows:

Water treatment field: As a high-efficiency flocculant, it is widely used in drinking water purification, industrial wastewater treatment, and urban sewage treatment. It can remove suspended solids, colloids, color, and some harmful impurities in water. At the same time, it can effectively remove phosphorus and fluorine to prevent water eutrophication. It is especially suitable for treating high-turbidity wastewater from papermaking, printing, and dyeing industries, with a COD removal rate of over 60%. Products with an arsenic content not exceeding 5mg/kg can be specially used as flocculants in water treatment. The treated water quality can meet relevant discharge standards, and the cost is lower than that of similar flocculants (such as PAC), making it suitable for large-scale applications.
Papermaking industry: As a core additive, it accounts for about 40% of the global aluminum sulfate consumption, mainly used as a sizing agent, filler retention agent, and pH regulator. When used in conjunction with rosin, it can significantly improve the water resistance of paper and prevent ink penetration. It can adsorb fine fibers and fillers such as calcium carbonate in the pulp, improve filler retention rate, reduce pulp loss, and at the same time enhance the strength and uniformity of paper. It controls the acidic environment of the pulp to ensure stable sizing effect, and is suitable for the production of various types of paper.
Textile and dyeing field: It is commonly used as a mordant and dyeing assistant. Aluminum ions can combine with dye molecules to form complexes, helping the dye to firmly adhere to natural fibers such as cotton and linen, enhancing the color fastness and brightness of the fabric, and reducing fading. It can also adjust the pH value of the dye bath, optimize the dyeing effect, reduce the difficulty of treating printing and dyeing wastewater, and can be used for decolorization of printing and dyeing wastewater to improve the biodegradability of the wastewater.
Other fields: In the fire protection industry, it is combined with baking soda and foaming agents to form foam fire extinguishing agents. In the pharmaceutical field, it can be used as a raw material for some drugs. In cosmetics, it is used as an antiperspirant (astringent). It can also be used as a cross-linking agent for animal glue, a curing agent for urea-formaldehyde adhesives, in the manufacture of alum, aluminum white, artificial gems, and high-grade ammonium alum. Additionally, it can be used as a petroleum decolorizing and deodorizing agent, wood preservative, tanning agent, and analytical reagent, with extremely diverse uses.

(2) Product Characteristics

Physical characteristics: The appearance is divided into crystalline (blocky, granular) and powdery forms. The crystals are sharp-angled and white, while the powder is a fine white powder. The density is 1.69g/mL (at 25℃), the bulk density is 0.6 - 0.9g/cm³, the melting point is 86.5℃, and the D50 value of the particle size distribution is 80 - 120μm. In low-temperature environments, solubility decreases, and it tends to form hard lumps, requiring vigorous stirring to dissolve completely. At 25℃, the complete dissolution time is ≤15min.
Chemical characteristics: It has the typical properties of inorganic sulfates. Its aqueous solution is acidic (1% aqueous solution has a pH value of 2.5-4.0). It is easily hydrolyzed to form colloidal precipitates of aluminum hydroxide, and the hydrolysis effect is greatly affected by water temperature. The applicable water temperature is 20-40°C, and the effect decreases significantly when the temperature is below 10°C. It can combine with salts of potassium, sodium, and ammonium to form alum compounds. It can decompose when heated, with a dehydration weight loss of ≤5% at 110°C and a burning residue of ≤0.1% at 800°C. It is insoluble in alcohols, can react with acids and alkalis, has good stability, and can be used for a long time without deterioration if stored properly.
Usage characteristics: It is easy to use and can be directly dissolved and dosed (the dosage needs to be adjusted according to water quality). It has a fast flocculation speed, stable treatment effect, and strong adaptability to water quality. There is no secondary pollution, and the residual aluminum ion content in the treated water meets national standards (≤0.05mg/L). It is low in cost and has higher cost performance compared with new flocculants such as polyaluminum chloride, making it suitable for large-scale industrial applications. However, the effective pH range of water is narrow (between 5.5 and 8), and the pH value needs to be adjusted according to the raw water hardness to achieve the best effect. The applicable pH value for soft water is 5.5-6.6, for medium-hard water is 6.6-7.2, and for high-hard water is 7.2-7.8.
Safety characteristics: It is non-toxic itself but has certain corrosiveness. Contact with skin and mucous membranes will cause irritation, so protective equipment must be worn during operation. It must not be in direct contact with food and medicine (except food-grade aluminum sulfate). It needs to be stored in a sealed and moisture-proof manner, away from fire sources, heat sources, and alkaline substances to avoid moisture absorption, caking, and chemical reactions. Waste disposal must comply with environmental protection standards and must not be dumped at will to prevent pollution of water bodies and soil.

III. Quality Standards

The quality of this product strictly complies with relevant national and industry standards. Products of different grades implement corresponding standards, and all indicators have undergone professional testing to ensure stable product quality and compliance with usage requirements. The specific quality standards are as follows:

(1) Implementation Standards

Industrial-grade (ordinary) aluminum sulfate: Implements the industry standard HG/T 2225-2010.
Industrial-grade (iron-free) aluminum sulfate: Implements the industry standard HG/T 2227-2004.
Food-grade aluminum sulfate: Implements the national standard GB 1886.214-2016.
Aluminum sulfate for water treatment: Implements the national standard GB/T 31060-2014.
International reference standards: ISO 8053:1995, ASTM E394-15, AOAC 942.17, etc.

(2) Quality Control Indicators

Main content control: The content of aluminum oxide (Al₂O₃) is strictly controlled in accordance with grading standards. For ordinary industrial-grade products, it is ≥15.6%; for iron-free grade, ≥15.8%; and for food grade, ≥15.8%. The detection method adopts titration, with a deviation of ≤±0.1%. The deviation of sulfate (SO₄²⁻) content is ≤±0.5%, ensuring that the effective components of the product meet the standards and guaranteeing the use effect.
Impurity limit control: Iron content is a core indicator for grading. For ordinary industrial grade, it is ≤0.75%; for iron-free grade, ≤0.005%; and for food grade, ≤0.01%, detected by the o-phenanthroline spectrophotometric method. Heavy metals (calculated as Pb) are ≤5-10ppm, arsenic (As) ≤1-2ppm, mercury (Hg) ≤0.1ppm, cadmium (Cd) ≤0.5ppm, and chloride ions (Cl⁻) ≤0.01%, all detected by professional instruments to ensure that the impurity content meets the standards and avoid affecting the use effect and environmental safety.
Physical indicator control: The content of water-insoluble substances is strictly controlled between 0.10% and 0.20%, detected by the filtration method. The appearance has no visible impurities, with uniform crystal particles and fine powder without caking. The particle size distribution D50 value is 80-120μm, detected by the laser diffraction method. Indicators such as dissolution rate, bulk density, and pH value all meet the corresponding grade standards to ensure stable physical properties of the product.
Safety indicator control: Food-grade products additionally control microbial limits to ensure no harmful microorganisms. For products used in water treatment, the content of soluble aluminum ions is controlled to be ≤0.05mg/L, meeting the discharge standards for drinking water and wastewater treatment. The product has no peculiar smell, no release of toxic and harmful substances, and no secondary pollution during storage and use, complying with environmental protection and safety requirements.

(3) Detection Methods

Main content (Al₂O₃): Adopts the EDTA complexometric titration method, referring to the GB/T 31060-2014 standard.
Iron content: Adopts the o-phenanthroline spectrophotometric method, referring to the ISO 8053:1995 standard.
Water-insoluble substances: Adopts the gravimetric method, referring to the GB/T 4482-2018 standard.
Heavy metals, arsenic, mercury, etc.: Adopt atomic absorption spectrophotometry and atomic fluorescence spectrometry, referring to the GB 1886.214-2016 and GB/T 5009.17-2021 standards.
pH value, solubility, bulk density, etc.: Refer to the HJ 828-2017, ASTM B527 and other standards to ensure accurate and reliable detection results.

(4) Quality Assurance

Each batch of products undergoes strict testing and is equipped with a complete test report to ensure that all indicators meet the corresponding standards. Unqualified products will never leave the factory.
The production process adopts standardized procedures. Special personnel monitor links such as raw material screening, reaction synthesis, drying, and packaging to ensure stable and consistent product quality.
Products are stored in sealed, dry, and ventilated warehouses, away from fire sources, heat sources, and alkaline substances. The shelf life is 12 months (unopened). After opening, they should be used as soon as possible to avoid moisture absorption and caking.
If there is a quality problem with the product, you can contact us with the test report and purchase certificate, and we will handle it in a timely manner to protect the customer's rights and interests.

IV. Storage and Transportation Requirements

(I) Storage Requirements

Store in a dry, ventilated, and cool warehouse. Avoid dampness and rain. The relative humidity of the warehouse should be controlled below 60% to prevent the product from absorbing moisture and caking.
Keep away from fire sources and heat sources (temperature not exceeding 30°C). Avoid direct sunlight to prevent the product from decomposing and deteriorating.
Store separately from alkaline substances, oxidants, food, and pharmaceutical raw materials. Avoid mixed storage to prevent chemical reactions and product contamination.
Ensure the packaging is tightly sealed. After opening, it should be sealed promptly and used as soon as possible to avoid moisture absorption and impurity mixing.
Storage period: The unopened product has a shelf life of 12 months. It is recommended to use up the opened product within 1 month.

(II) Transportation Requirements

Transport vehicles must be dry, clean, and free of odors. Avoid dampness, rain, and exposure to sunlight. The temperature during transportation should be controlled between 5-35°C.
The product packaging must be firm to avoid damage and leakage during transportation. When transporting 25kg/50kg woven bags, they should be stacked in layers to avoid extrusion and caking. When transporting ton bags, hoisting equipment must be used, and they should be loaded and unloaded gently to prevent damage to the packaging bags.
Keep away from fire sources, heat sources, and alkaline substances during transportation to avoid chemical reactions.
It is strictly prohibited to mix with food, medicine, cosmetics, etc., during transportation to prevent contamination.
Comply with traffic rules during transportation. Handle with care during loading and unloading, avoid violent collisions, and ensure the product is intact.

V. Safe Operation Instructions

Operators must wear protective masks, rubber gloves, and protective glasses to avoid direct contact with the skin and mucous membranes. In case of accidental contact, rinse with plenty of water for more than 15 minutes immediately, and seek medical attention promptly if it is severe.
Avoid inhaling product dust during operation. The operation site must be well-ventilated and equipped with dust collection equipment.
When dissolving and adding, slowly add aluminum sulfate to water while stirring to avoid local excessive concentration leading to caking. It is forbidden to add water to aluminum sulfate (to prevent splashing).
It is forbidden to eat or drink the product. In case of accidental ingestion, drink plenty of warm water immediately to induce vomiting, and seek medical attention promptly.
After operation, wash hands, clothes, and operation tools promptly to avoid residue.
Waste disposal: Product and packaging waste must be disposed of in accordance with environmental protection standards. Do not dump them at will. They can be recycled or handed over to professional environmental protection agencies for disposal to avoid pollution of water bodies and soil.

Basic Info

Product Name:

Aluminum sulfate

Other Name:

Sulfuric acid,aluminum salt (3:2);Sulfatodialuminum disulfate (Al2(SO4)3);Aluminum sulfate (Al2(SO4)3);Aluminum sulfate;Cake alum;Alum;Aluminum alum;Dialuminum trisulfate;Aluminum sulfate (2:3);Dialuminum sulfate;Sulfuric acid aluminum(3+) salt (3:2);Sulfuric acid aluminum salt (Al2(SO4)3);Aluminum trisulfate;Aluminum sulphate;Aluminum sesquisulfate;Aluminum(III) sulfate;Tai-Ace S 150;Nalco 7530;Fertosan;Hi Soft C 2;Tai-Ace S 100;Alunogenite;Alumen;Nalco 7530 (salt);S 150;Al+Clear;Gel Cord;Fennosize KD 266MB;aluminum sulfate;19239-71-5;22515-37-3;66578-72-1;121739-79-5;124027-27-6;139939-73-4;1937262-06-0

CAS No.:

10043-01-3

Molecular Formula:

Al.³/2H2O4S

InChIKeys:

InChIKey=UOQFRXOXCWDMQZ-UHFFFAOYSA-N

Molecular Weight:

342.15

Exact Mass:

341.818268

EC Number:

233-135-0

UNII:

I7T908772F

ICSC Number:

1191

UN Number:

3264|3077

DSSTox ID:

DTXSID2040317

NCI Thesaurus Code:

C228

Color/Form:

White, lustrous crystals, pieces, granules, or powder

HScode:

2833220000

Categories:

Flocculant

Characteristics

PSA:

266

XLogP3:

-0.09660

Appearance:

White Powder and/or Chunks

Density:

1.61 g/cm³

Melting Point:

770 °C (decomp)

Boiling Point:

112-116 °C

Refractive Index:

Index of refraction: 1.47

Water Solubility:

H2O: soluble

Storage Conditions:

Separate from air, water, halocarbons, alcohols. Store in a cool, dry, well-ventilated location. Outside or detached storage is preferred. Inside storage should be in a standard flammable liquid storage warehouse, room, or cabinet. /Aluminum alkyls/

Vapor Pressure:

Esentially zero.

Toxicity:

Oral-mouse LD50: 6207 mg/kg; peritoneal-mouse LD50: 1735 mg/kg

Flammability characteristics:

High fever decomposes toxic sulfur oxides; hydrolysis produces sulfuric acid, irritating to lungs

Explosive limit:

Violently explosive

Odor:

ODORLESS

Taste:

HAS SWEET, MILDLY ASTRINGENT TASTE

PH:

2,9 or above (5 % solution)

Experimental Properties:

Melts when gradually heated; at 250 °C loses its water; ...on long boiling of aqueous solution, insoluble basic salt precipitates.|Insoluble in alcohol; 86.9 g/100 mL water at 0 °C; 1104 g/100 mL water at 100 °C density: 1.69 at 17 °C; mp 86.5 °C with decomposition; colorless, monoclinic crystals; index of refraction: 1.474, 1.467, 1.483 /Aluminum Sulfate Octadecahydrate/|Solid. MW: 666.43 for /Aluminum sulfate octadecahydrate/|One part of technical aluminum sulfate reduces the alkalinity as calcium carbonate by 0.55 parts.|Decomposes at 770 °C|Heat of formation = -820.98 kcal/mole; free energy of formation = -738.99 kcal/mole; standard entropy = 57.2 cal/deg (all at 25 °C)

Air and Water Reactions:

Dissolves in water with evolution of some heat. Creates acidic solutions.|Water soluble.

Reactive Group:

Salts, Acidic

Reactivity Alerts:

Water-Reactive

Reactivity Profile:

Aqueous solutions of ALUMINUM SULFATE are acidic. The solid may corrode metals in presence of moisture.|ALUMINUM SULFATE, SOLUTION is acidic. Will corrode metals. A strong acid. [Handling Chemicals Safely 1980. p. 136].

Corrosivity:

Aluminum sulfate solution is corrosive to aluminum.|May corrode metals in presence of moisture

See More Aluminum sulfate Properties 

Hazard Identification

Classification of the substance or mixture

Corrosive to metals, Category 1

Serious eye damage, Category 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H290 May be corrosive to metals H318 Causes serious eye damage
Prevention	P234 Keep only in original packaging. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
Response	P390 Absorb spillage to prevent material damage. P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help.
Storage	P406 Store in a corrosion resistant/...container with a resistant inner liner.
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Separated from bases and strong oxidants. Dry. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.Ambient Octadecohydrate

See More Aluminum sulfate Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Polyacrylamide,Polyaluminum Chloride,Poly Ferric Sulfate,Aluminium Sulfate,Activated Carbon / Activated Charcoal,Quartz Sand Filter Media

Location:
No. 162, Shuanghe Village, Jiajinkou Town, Gongyi City

Payment Terms:
TT against copy of documents,D/P,L/C,100% TT in advance

Year of Establishment:
2014

Certifications:
trademark,Business License
Henan Zhencheng Environmental Protection Technology Co., Ltd., founded in 2000, focuses on deep cultivation in the environmental protection field. It is mainly engaged in the whole-process services of production, sales, inspection, analysis and on-site commissioning of water treatment chemicals, water purifiers, activated carbon, filter media and fillers, and is committed to providing professional and efficient water treatment solutions for various industries.

The company's main products cover multiple series, including:

Polyacrylamide (PAM)

Polyaluminum Chloride (PAC)

Poly Aluminum Ferric Chloride

Poly Ferric Sulfate (PFS)

Ferrous Sulfate

Activated Carbon

Filter Media

Fillers, etc.

The company always adheres to the bottom line of quality. Its products strictly implement relevant national and industry standards, and adopt advanced production processes and testing equipment to ensure that each batch of products meets quality requirements. With stable and reliable product quality, the company's products are widely used in many core fields such as papermaking, printing and dyeing, sewage treatment, chemical industry, coal gas, metallurgy, urban construction and environmental protection, providing strong support for water purification and environmental governance in various industries.

Over the years, the company has deeply cultivated the market and pursued innovation. Its products are sold to many countries and regions at home and abroad. With high-quality products and considerate services, it has won high praise and wide trust from global users, and its brand popularity and industry influence have steadily improved.

Upholding the philosophy of "equality and mutual benefit, friendly cooperation and win-win development", Henan Zhencheng Environmental Protection Technology Co., Ltd. is willing to make acquaintances with friends from all walks of life at home and abroad, carry out comprehensive and in-depth cooperation in environmental protection engineering project construction, technical exchange, product promotion and other aspects, work together to purify water quality, protect the ecological environment, and build a beautiful home where man and nature live in harmony.

Inquiry History

70 Inquiries

Country	Product	Purchase Quantity	Date Posted
Thailand	Aluminum sulfate	1000 KG	Aug 24, 2023
Germany	Ammonium Sulphate	300 TON	Jun 10, 2024
Nigeria	Aluminum sulfate	10 MT	Jul 5, 2026
Russia	Aluminium sulfate Industrial Grade best selling	200 MT	Jun 22, 2026
Rwanda	Aluminum Sulphate	25 KG	May 26, 2026
Mexico	Aluminum sulfate	20000 KG	May 8, 2026
Russia	ALUMINUM SULFATE	20 MT	Apr 1, 2026
South Africa	Aluminium Sulphate Plant	1 40' Fcl	Apr 1, 2026
United States	Aluminium Sulphate	1000 PCS	Jan 5, 2026
Ivory Coast	Sulfate Alumine	100 MT	Oct 30, 2025
India	Aluminium Sulphate	100 MT	Sep 23, 2025
Pakistan	aluminum sulphate	300 MT	Aug 27, 2025
India	Alum 17% Non Ferric Powder	2.00 20' Fcl	Aug 25, 2025
South Africa	Aluminium sulphate	5.00 MT	Aug 5, 2025
Mozambique	Aluminium Sulfate	1 MT	Jul 29, 2025
Bahrain	Aluminium Sulphate	25.00 KG	Apr 27, 2025
Nepal	Aluminium Sulphate Fine powder	25.00 TON	Mar 4, 2025
Egypt	Aluminum sulphate powder	1.00 20' Fcl	Feb 8, 2025
Saudi Arabia	Aluminum sulfate	160 TON	Jan 3, 2025
Brazil	Aluminum sulphate	1 TON	Dec 17, 2024

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Aluminum sulfate, white granules, white powder, iron-free aluminum sulfate, industrial aluminum sulfate, water treatment aluminum sulfate

Product Description

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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