Aluminum Potassium Sulfate SDS vs. Potassium Sulfate: Your Complete Safety Data Guide
When procurement teams and chemical engineers search for “aluminum potassium sulfate sds”, they are frequently looking for the safety documentation of a white crystalline powder used in fertilizer, glass, aluminum recycling, and pharmaceutical excipients. This query often leads to confusion because the compound they actually need is potassium sulfate (K₂SO₄)—not aluminum potassium sulfate (alum). At Hailei Chemical, we supply premium potassium sulfate (sulfate of potash) with minimum 50% K₂O, and we provide the correct Safety Data Sheet (SDS) that meets all international regulatory standards. This article clarifies the distinction, walks you through every section of a typical potassium sulfate SDS, and explains why accurate documentation is critical for your sourcing decisions, from crop nutrition to high-purity glass manufacturing.
Why Buyers Confuse Aluminum Potassium Sulfate with Potassium Sulfate
The mix-up is understandable. Both compounds share the word “potassium sulfate” in some trade names. However, chemically they are completely different:
- Aluminum potassium sulfate (KAl(SO₄)₂·12H₂O) is a double salt, commonly known as alum. It is widely used in water treatment, food pickling, and as a mordant in dyeing.
- Potassium sulfate (K₂SO₄), the product offered by Hailei Chemical, is a single salt that provides potassium and sulfur without chloride. Its formula is K₂SO₄, and it appears as a free-flowing white crystal or powder.
Many industrial importers type “aluminum potassium sulfate sds” into search engines when their real requirement is a chlorine-free potassium fertilizer, a fining agent for specialty glass, or a salt for pharmaceutical formulations. The result? They land on a safety sheet for alum, which has different hazard classifications, exposure limits, and handling requirements. For a buyer responsible for worker safety and customs clearance, this can cause delays, mislabeling, and even regulatory non-compliance.
Aluminum Potassium Sulfate SDS: What You’re Actually Looking For
If you are sourcing potassium sulfate for high-value agriculture, glass production, aluminum recycling, or as an excipient in drugs like glucosamine sulfate potassium chloride formulations, the document you need is the potassium sulfate safety data sheet. The genuine aluminum potassium sulfate sds applies to a different substance with distinct properties. In this guide, we will focus on the 16-section SDS for potassium sulfate (K₂SO₄) as supplied by Hailei Chemical, while helping you interpret the data through the lens of your specific application.
Why the Right SDS Matters for Bulk Potassium Sulfate Procurement
A Safety Data Sheet is far more than a bureaucratic form; it’s the foundation of responsible chemical management across the supply chain. For importers and industrial users of potassium sulfate, the SDS serves several vital functions:
- Regulatory compliance: Meets the requirements of OSHA Hazard Communication Standard (29 CFR 1910.1200), EU REACH, GHS, and local transportation regulations.
- Risk assessment: Identifies physical, health, and environmental hazards, ensuring proper personal protective equipment (PPE) and storage conditions.
- Customs clearance: Many port authorities require an accurate, product-specific SDS before releasing shipments.
- Downstream communication: Your customers—whether fertilizer blenders or pharmaceutical companies—depend on the SDS to complete their own safety and regulatory declarations.
When you partner with Hailei Chemical, you receive a GHS-compliant SDS that precisely describes our product: a white, odorless powder with CAS 7778-80-5, minimum 50% K₂O, and no hazardous impurities. This transparency builds trust and accelerates your supply chain.
The 16-Section Potassium Sulfate SDS Explained for Bulk Purchasers
Following the Globally Harmonized System (GHS), every SDS is structured in a standardized 16-section format. Below we decode the key sections relevant to potassium sulfate, highlighting what industrial buyers must know for different end uses.
Section 1: Identification
This section provides the product identifier, recommended uses, and supplier contact information. For Hailei’s potassium sulfate, the chemical name is potassium sulfate, with synonyms such as sulfate of potash, SOP, and potassium sulfate formula K₂SO₄. Recommended applications include fertilizer, glass manufacture, aluminum recycling flux, pharmaceutical excipient, and gypsum board additive. Our full contact details are listed so you can quickly request a hard copy of the SDS for your records.
Section 2: Hazard(s) Identification
Pure potassium sulfate is generally classified as non-hazardous under GHS. However, the SDS will clearly state that it may cause slight eye irritation in dust form and recommend avoidance of breathing dust. It carries no flammable or explosive warnings, no acute toxicity, and no environmental hazard classification. This benign profile is one reason why potassium sulfate fertilizer is preferred for sensitive crops—it’s safe for workers and soil biology when handled with basic precautions. Knowing this contrasts sharply with some industrial salts that require elaborate containment measures.
Section 3: Composition/Information on Ingredients
Here you will see the exact composition: ≥99.0% K₂SO₄, with water-insoluble matter ≤0.05% and chloride (Cl) ≤0.5%. The CAS number 7778-80-5 is confirmed. Trace elements are minimal. This purity data is essential for pharmaceutical buyers evaluating uses of glucosamine sulfate potassium chloride as an excipient, where even low levels of heavy metals or chlorides can disqualify a batch. Our typical heavy metal content is Pb < 5 ppm, As < 2 ppm—well within pharmacopoeia limits.
Section 4: First-Aid Measures
Simple but crucial: rinsing eyes with water, washing skin with soap and water, moving to fresh air after excessive dust inhalation. No special antidotes are needed. For bulk-handling facilities, this section confirms that medical emergencies are unlikely if basic hygiene is followed.
Section 5: Fire-Fighting Measures
Potassium sulfate is non-combustible and can act as a flame retardant. The SDS advises using extinguishing media suitable for surrounding materials (water spray, foam, CO₂). Firefighters should wear standard protective gear—no special decomposition hazards arise from the compound itself.
Section 6: Accidental Release Measures
Spilled material should be collected mechanically and placed in clean, dry containers. Avoid dust generation and prevent entry into surface water or groundwater. Because potassium sulfate is highly water-soluble, it can be flushed with water if local regulations permit. The low environmental risk is a selling point for applications like chlorine-free fertilizer that won’t harm aquatic systems.
Section 7: Handling and Storage
This section is indispensable for warehouse managers. K₂SO₄ should be stored in a cool, dry, well-ventilated area, away from strong acids and moisture. It is hygroscopic over ~85% relative humidity, so packaging integrity matters. Our standard packing—25 kg, 50 kg PE-lined bags, or 1000 kg big bags—preserves quality. The SDS also specifies that the product is non-corrosive to most materials, so carbon steel silos are acceptable, reducing infrastructure costs compared to chloride-based salts.
Section 8: Exposure Controls/Personal Protection
Occupational exposure limits for potassium sulfate are typically 10 mg/m³ (total dust) in many jurisdictions. The SDS recommends local exhaust ventilation in dusty processes, safety glasses, protective gloves (e.g., nitrile), and long-sleeved clothing. For high-volume blending of what is potassium sulfate fertilizer, the emphasis is on dust masks (N95 equivalent) to prevent inhalation nuisance. This practical advice helps you design safe production lines.
Section 9: Physical and Chemical Properties
Key data points: appearance (white crystalline powder), odor (none), pH (7–9 in 5% solution), melting point (1069 °C), solubility (120 g/L at 25 °C), bulk density (1.2–1.4 kg/L). These properties are referenced when formulators calculate blending ratios and when glass makers verify that the product melts evenly in the batch without introducing bubbles or color.
Section 10: Stability and Reactivity
Potassium sulfate is stable under normal conditions. It does not undergo hazardous polymerization. Incompatible materials include strong acids (may release sulfur oxides) and strong reducing agents. This stability is a major logistics advantage—no temperature-controlled shipping, no time-sensitive reactivity, and a shelf life exceeding 24 months when properly stored.
Section 11: Toxicological Information
The SDS will show that acute oral toxicity (LD50, rat) is >2,000 mg/kg, meaning low toxicity. It is not a skin sensitizer, carcinogen, or mutagen. These data points support pharmaceutical applications and confirm that even if used in animal feed (an emerging use), the risk is negligible under normal conditions.
Section 12: Ecological Information
K₂SO₄ is not classified as ecotoxic. In fact, as a fertilizer, it provides essential nutrients. However, very high concentrations can contribute to salinity; the SDS advises preventing release to sensitive groundwater systems. This balanced approach helps EHS managers communicate sustainability credentials.
Section 13: Disposal Considerations
Material can be reused if uncontaminated. Otherwise, disposal must comply with local regulations, typically through permitted waste treatment facilities or as agricultural soil amendment where allowed. Our SDS helps you avoid classification as hazardous waste, reducing disposal costs.
Section 14: Transport Information
Not classified as dangerous goods for road, rail, sea, or air according to ADR, IMDG, IATA. UN number: not applicable. This drastically simplifies logistics documentation, especially compared to ammonium nitrate or chlorinated compounds. When your consignment arrives at port, the SDS confirms that no special placarding or segregation is required.
Section 15: Regulatory Information
Lists all relevant safety, health, and environmental regulations for the substance. For EU markets, this includes REACH registration. For US buyers, it covers TSCA status and DOT exceptions. Having a fully compliant SDS from Hailei Chemical means you can immediately demonstrate conformance to downstream regulators.
Section 16: Other Information
Includes the date of SDS preparation (or revision), an explanation of abbreviations used, and a disclaimer. Always verify you have the latest version. At Hailei, we update our SDS whenever there is a change in classification, composition, or regulatory requirements and immediately provide the new document to our clients.
How Industry-Specific SDS Requirements Differ
While the core SDS is the same, certain sections take on greater importance depending on your sector:
- Specialty Fertilizer Importers: Focus on composition (Section 3) to guarantee low chloride and high K₂O. Ask for a certificate of analysis alongside the SDS to verify nutrient content for your labels. This directly relates to understanding what is potassium sulfate fertilizer and its unique agronomic benefits—chloride-free potassium for grapes, tobacco, potatoes, and greenhouse crops.
- Glass Manufacturers: Physical properties (Section 9) matter most. Melting point and purity determine optical clarity. The SDS should show extremely low iron content (<0.003%) to prevent greenish tint, a key specification for architectural and automotive glass.
- Aluminum Recyclers: Potassium sulfate acts as a flux to protect molten aluminum from oxidation. Here, the absence of contaminants (Section 3) and stability (Section 10) are paramount. Any unexpected reactivity could cause surface defects in secondary ingots.
- Pharmaceutical Manufacturers: For uses of glucosamine sulfate potassium chloride, potassium sulfate is often the preferred potassium source because it avoids the sodium load of sodium chloride. The SDS must confirm low heavy metals, absence of endotoxins, and compliance with pharmacopoeial monographs (USP, EP). Section 2 (hazards) reassures that no special containment is needed in cleanrooms.
Aluminum Potassium Sulfate SDS: Key Differences That Impact Your Sourcing
A genuine aluminum potassium sulfate sds (for alum) differs markedly from K₂SO₄. Alum solutions can be slightly acidic, and the powder may cause more pronounced irritation due to its acidic nature when hydrated. Alum also has different solubility curves and cannot be used as a chlorine-free fertilizer. If you order potassium sulfate but receive SDS for alum, you risk importing the wrong chemical, leading to crop damage or glass defects. Always insist on product-specific documentation. Hailei Chemical attaches the precise SDS to every shipment, and our commercial team is trained to distinguish between the two compounds immediately.
Common Pitfalls When Reviewing an SDS for Potassium Sulfate
Even experienced buyers can miss critical details in the SDS. Watch for these issues:
- Outdated revision date: An SDS over five years old may not reflect current GHS hazard classes or exposure limits.
- Generic chemical name: Ensure the SDS states “potassium sulfate” not “various sulfate salts.”
- Missing CAS number: 7778-80-5 must appear under Section 3.
- Ambiguous purity statements: A reputable supplier, like Hailei’s sulfate of potash, will list minimum purity and critical impurities—never just “commercial grade.”
- Transport classification errors: If an SDS lists a UN number for potassium sulfate, it’s likely a mistake or the product is contaminated.
By scrutinizing these elements, you protect your operation and avoid sourcing from substandard producers.
How Hailei Chemical Supports Your Compliance and Sourcing
At Weifang Hailei Fine Chemical Co., Ltd., we treat the SDS as a living document. Our dedicated quality team continuously monitors regulatory changes across major markets—REACH, OSHA, CLP, GSO—and updates the safety sheet accordingly. When you request a quote, we provide the latest SDS in PDF along with the Certificate of Analysis (COA) and, for pharmaceutical customers, BSE/TSE-free and GMO-free statements. This comprehensive documentation package helps you clear customs faster, qualify for tenders, and meet supplier audit requirements.
If you have been searching for “aluminum potassium sulfate sds” but actually need safety data for premium potassium sulfate, you’ve found the right partner. We invite you to visit our product page to download a specimen SDS or to speak with our technical specialists about your specific application—whether it’s high-purity glass, high-value vegetable nutrition, or a glucosamine sulfate potassium chloride formulation.
Ensure your next bulk order comes with accurate, current, and application-relevant safety documentation. Contact us today for a customized SDS and competitive pricing on potassium sulfate that meets international standards.