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Potassium Dihydrogen Arsenate

    • Product Name Potassium Dihydrogen Arsenate
    • Alias Monopotassium arsenate
    • Einecs 231-913-4
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    963571

    Chemical Name Potassium Dihydrogen Arsenate
    Chemical Formula KH2AsO4
    Molar Mass 176.02 g/mol
    Appearance White crystalline solid
    Solubility In Water Soluble
    Melting Point Between 238-239°C (decomposes)
    Density 2.366 g/cm3
    Cas Number 7784-41-0
    Ph Acidic in aqueous solution
    Uses Used in chemical research and as a reagent

    As an accredited Potassium Dihydrogen Arsenate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 500g white HDPE bottle with a red screw cap, labeled "Potassium Dihydrogen Arsenate, Analytical Grade," displaying hazard symbols and CAS number.
    Shipping Potassium Dihydrogen Arsenate should be shipped in tightly sealed, clearly labeled containers, compliant with all hazardous material regulations. Transport must avoid moisture, heat, and incompatible substances. Handling requires personal protective equipment. Shipping documents should indicate the toxic nature of the product, and all applicable local, national, and international transport guidelines must be followed.
    Storage Potassium Dihydrogen Arsenate should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from incompatible materials such as strong acids and reducing agents. The storage space should be secure and clearly labeled as toxic. Avoid exposure to moisture and sources of ignition. Proper personal protective equipment should be used when handling this hazardous substance.
    Application of Potassium Dihydrogen Arsenate

    Applications of Potassium Dihydrogen Arsenate in Industrial Manufacturing

    As a direct manufacturer, we supply Potassium Dihydrogen Arsenate for critical roles within several high-purity industrial production streams. The applications below reflect established downstream processes where this compound delivers process-specific value based on its chemical attributes and stoichiometric precision.

    1. Electronic-Grade Crystal Growth for Nonlinear Optics

    Crystal growers in the electronics sector use Potassium Dihydrogen Arsenate as a feed material for the synthesis of potassium dihydrogen arsenate (KDA) single crystals via slow cooling methods. These specialized crystals function as frequency converters and modulators in laser optical systems, supporting advanced photonic device fabrication. Manufacturers demand tight control of input material purity to achieve consistent lattice structure and phase properties required for high-performance devices.

    Industry compliance standards

    • JEITA ET-5104 (Electronic Industry Standards Association of Japan)
    • IEC 60747-5-6 (International Electrotechnical Commission, optoelectronic devices)
    • RoHS Directive (2002/95/EC) exemptions regarding industrial photonics use
    • ISO 9001:2015 certified QC protocols for high-purity input materials

    Typical usage ratio

    • 80–99% of the batch chemical load, adjusted based on desired crystal size and growth rate
    • Minor dopants or co-solvents up to 2% for application-specific crystal tuning

    Downstream process integration

    • Enter charging stage for melt, dissolved in deionized water or comparable solvent
    • Monitored throughout temperature cycling to maintain phase stability before nucleation
    • Used as the primary source of K+ and AsO43− ions for seeded crystal growth
    • Residues monitored for trace metal contaminants to prevent optical defects

    Final product types

    • Bulk nonlinear optical KDA single crystals
    • Optical isolators and frequency doublers
    • Electro-optic modulators
    • Precision laser components for scientific instrumentation

    2. Pesticidal Agent Parent Compound Manufacturing

    Chemical synthesis operations in the agrochemical industry utilize Potassium Dihydrogen Arsenate as a parent compound in the formulation of certain arsenic-based pesticides. Although regulatory controls limit these applications, selected markets permit use in controlled environments for termite, ant, and wood preservation treatments. Process engineers incorporate the raw material under tightly controlled batch conditions to synthesize organoarsenical intermediates.

    Industry compliance standards

    • FAO/WHO Codex Alimentarius residue limits
    • US EPA 40 CFR Part 180 (Tolerances and exemptions for pesticide chemical residues in food)
    • GHS CLP Regulation (EC 1272/2008) for hazard classification and labeling
    • ISO 17025 certified testing for final formulation validation

    Typical usage ratio

    • Ranges from 10–40% in precursor synthesis reaction, adjusted per specific pesticide yield targets
    • Process dependent on allowed residual arsenic levels in region of sale

    Downstream process integration

    • Introduced as a solid feed to the reactor at the synthesis start
    • Dissolved in acidic or neutral aqueous solution based on target organoarsenical intermediate
    • Batch neutralization and filtration steps ensure final concentration accuracy
    • Unreacted arsenate monitored and recycled for environmental control

    Final product types

    • Organoarsenic wood preservatives
    • Specialty termite and soil treatment formulations
    • Ant control agents for agricultural or construction use
    • Limited-use horticultural fungicide preparations (where permitted)

    3. Analytical Reagents for Chemical Laboratories

    Producers supply Potassium Dihydrogen Arsenate in analytical grade to commercial laboratories and industrial testing facilities. It serves as a certified reference material and calibration standard in quantitative arsenic determination procedures, particularly with spectrophotometry and atomic absorption methods used in mining, metallurgy, and water quality labs. Specification consistency is critical to support regulatory reporting and method validation requirements in these sectors.

    Industry compliance standards

    • ASTM E2877 (Standard Guide for Analytical Quality Control in Laboratories)
    • ISO/IEC 17025 laboratory accreditation
    • EPA Method 200.8 for arsenic quantitation in water and solids
    • National Institute of Standards and Technology (NIST) traceability

    Typical usage ratio

    • Prepared as 0.1–10 ppm arsenic working standards for calibration runs
    • Concentration tailored by method sensitivity and required detection limits

    Downstream process integration

    • Weighed and dissolved to prepare standard arsenate solution libraries
    • Used to spike test samples for recovery checks or matrix effect studies
    • Integrated into automated sample prep for high-throughput labs
    • Employed in method validation, proficiency testing, and QC campaigns

    Final product types

    • Certified analytical arsenate calibration solutions
    • Primary standard reference materials (SRMs)
    • Quality control proficiency test kits
    • On-site testing kits for mining and environmental monitoring

    4. Glass Manufacturing and Specialty Enameling

    The technical glass industry uses Potassium Dihydrogen Arsenate as a fining and decolorizing agent during batch preparation for specialty glass compositions. By carefully adding controlled amounts to the glass melt, downstream producers can modify the redox properties of the batch, removing residual color, and improving clarity, especially in optical and laboratory glassware. Its action as an oxidizing or fluxing additive allows for batch-specific tuning in advanced enameling applications.

    Industry compliance standards

    • EN 1748-1-1 (Glass in building, safety requirements)
    • ASTM C1036 (Flat Glass standard specification)
    • ISO 14001 environmental management for heavy metal abatement
    • REACH Regulation for controlled use in industrial settings

    Typical usage ratio

    • 0.01–0.5% by weight of total glass batch, with dosage determined by target iron content and desired color removal
    • Historically higher loadings allowed, currently limited by emission regulations

    Downstream process integration

    • Added to silica, soda ash, and lime during raw batch mixing
    • Dissolved during melting at 1400–1500°C in refractory furnaces
    • Active as an oxidizer in the glass melt, preventing color bodies formation
    • Residuals measured to ensure compliance with heavy metal leaching limits

    Final product types

    • Lead-free specialty optical glass
    • Laboratory glass containers and precision slides
    • Technical enamels for industrial equipment
    • Specialty decolorized glass beads and frits

    5. Reagent for Mineral Processing and Metallurgical Flotation

    Metallurgical plants and mineral processors adopt Potassium Dihydrogen Arsenate as a selective depressant reagent during flotation operations for certain sulfide and arsenic-bearing ore beneficiation. Downstream flows use accurately measured additions to control mineral surface chemistry, ensuring separation efficiency and minimization of unwanted arsenic in valuable metal concentrates, especially during treatment of copper, lead, and gold ore bodies.

    Industry compliance standards

    • ISO 10224 (Terms and Definitions Relating to Mineral Processing)
    • NIOSH Occupational exposure guidelines for arsenic compounds
    • Mine-specific water and effluent quality standards
    • OECD Guidelines for the Testing of Chemicals (Aquatic Toxicity)

    Typical usage ratio

    • Added at 0.01–0.2 kg per metric ton of dry ore processed
    • Adjusted based on mineralogical composition and ore grade

    Downstream process integration

    • Injected during grinding or pulp conditioning phase
    • Acts on arsenopyrite or other sulfide minerals for selective flotation separation
    • Works in conjunction with xanthate or cyanide collectors as required
    • Residual arsenate monitored in tailings and process water for compliance

    Final product types

    • Concentrated metal sulfide flotation concentrates
    • Refined copper, lead, or gold doré bars
    • Byproduct arsenic sludge for secure disposal or reprocessing
    • Processed tailings meeting regulatory discharge criteria
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    Certification & Compliance
    More Introduction

    Potassium Dihydrogen Arsenate: Direct from the Source

    For years, our team has produced Potassium Dihydrogen Arsenate with a focus on supplying researchers and industry professionals who rely on consistent performance. Seeing global shifts in the science and technology landscape, we stay close to the shop floor, tuning every batch to meet the exacting requirements chemists lay out. In our plant, technical teams put their knowledge to use, refining purification steps and taking extra measures to limit unwanted contaminants. We know what researchers expect from an inorganic salt, and the fine details of production separate stable, reliable supplies from unpredictable lots.

    Why This Compound Matters

    Potassium Dihydrogen Arsenate, known in the trade by its proper chemical name KH2AsO4, enters the picture when a precise arsenate source is needed, often in specialized glass production, chemical synthesis, or analytical chemistry. The unique balance between solubility and the chemical properties it brings has guided its adoption in academic and industrial labs alike. Potassium Dihydrogen Arsenate differs from other arsenate salts in practical ways—namely, its handling and performance during critical steps of complex syntheses. Our customers from universities and R&D centers look for consistency, since tiny shifts in purity impact results down the line.

    Production: Where the Details Count

    Raw material quality defines every batch we finish. Over time, we’ve adjusted pretreatment of potassium carbonate and arsenic acid, controlling reaction temperatures and filtration rates. Every input and production parameter impacts the physical form of the finished product. Our staff monitor each lot’s crystalline structure—loose, clumped granules slow down dissolution in aqueous solutions, and customers report issues during weighing and mixing. We developed our current drying technique to target a uniform, free-flowing powder, with an eye toward preventing excessive dust or hard lumps. Operators sample and test intermediate products, keeping eyes out for off-colors or hints of moisture. The smallest deviation triggers immediate adjustments.

    Industrial syntheses set their specs in raw detail: minimum 99.5% assay by weight, with arsenic as the dominant cation and no traces of potassium pyrophosphate, sulfate, or chloride. Most requests come in for this analytical grade, as supply chains today have little room for error or repeat ordering over basic purity questions. Consistency comes not just from paperwork and inspectors, but from people who’ve ground and packaged thousands of kilograms, learning to spot the telltale signs of perfect product before the final tests confirm the lot.

    Product Characteristics at a Glance

    Potassium Dihydrogen Arsenate appears as a white, odorless crystalline substance that dissolves well in water but remains stable under normal storage. Some manufacturers cut corners by mixing in trace anticaking agents or letting up on the last cycles of recrystallization. That path brings headaches later when residues pop up in results or when solubility turns erratic. From years of packed shipments, we’ve seen poorly dried stocks from other suppliers arrive caked or grey-tinged from incomplete removal of process impurities. Our plant is set up to run vacuum ovens, keeping atmospheric oxygen and stray particles out at every drying pass.

    We record average particle size distributions weekly, making sure lab techs don’t struggle with powders clumping together. For shipments above a certain weight, we switch to lined drums that fold open, keeping material clean and easy to extract. These details add up to smoother days in the lab. Customers have reported fewer days lost to reweighing or redissolving suspected material.

    Safe Handling and Experienced Insight

    Arsenates as a class can pose unique safety and regulatory concerns. Our manufacturing crew and in-house EHS managers run ongoing safety training cycles, reviewing each handling step in storage, blending, and filling. Long-term work with this class of materials led us to invest in newer containment equipment years before many regulations changed. Tasks like cleaning transfer hoppers or inspecting blending tanks always use negative-pressure systems to trap dust and reduce exposure. Customers who have toured our plant often ask about our process for accident reviews and routine inspections. There are no shortcuts; accumulating improper disposal practices hurts everyone in the long run.

    Every facility using Potassium Dihydrogen Arsenate should implement clear procedures for storage apart from incompatible substances, combined with regular staff training. Over time, we’ve shared tips with several research partners about using vented hoods and making proper waste collection part of the daily workflow. Dealing with arsenic compounds takes attention at every step, and ignoring storage problems invites larger headaches with both compliance and workplace safety.

    Applications We See Firsthand

    Over the years, research into glass formulations led scientists to Potassium Dihydrogen Arsenate, as it acts as a modifier, stabilizing thermal and optical properties. Our technical service staff have visited glassworks to troubleshoot production runs plagued by unexpected hazing. Many times, the root cause traced back to a mismatch in arsenate and potassium ratios, or an impurity left behind by subpar processing upstream. Delivering a pure, dry, and homogenous powder repeatedly has real benefits—better melt behavior and a finished product that earns trust from high-tech industries.

    Analytical chemistry labs request our product for calibration standards or as a reagent in classic titration procedures, where even small interference can throw off results. Potassium Dihydrogen Arsenate gives analysts an option with dependable solubility, and an established composition known from decades of academic literature. Lab suppliers who try cutting costs with cheaper, mixed-arsenate blends nearly always hear back promptly about skewed titration data.

    Finer differences in reactivity set this salt apart from alternatives. Customers who replaced sodium or ammonium arsenates with our product often reported easier pH adjustment and less drift during buffered reactions in both research and pilot lines, supported by actual notes in their lab books. Potassium-based arsenates generally form less hygroscopic salts and simplify the logistics of bulk storage. The reliability shows up in glass production batch logs and in routine laboratory work alike, validating the focus our team places on uniform production.

    Comparing Potassium Dihydrogen Arsenate with Other Salts

    Even among inorganic arsenates, Potassium Dihydrogen Arsenate holds a place for applications benefiting from potassium’s chemical stability and compatibility. Sodium versions dissolve more rapidly, sometimes leading to unwanted side reactions or issues with glass clarity. Ammonium salts, despite their lower melting points, present real trouble in high-temperature conditions, releasing gaseous byproducts and leaving residual ammonia where it’s not wanted. Several buyers have called to ask why their glass batches began failing QC only after a switch from potassium to sodium arsenate—turns out, the finer points of solubility and thermal stability affect melt uniformity and downstream crystallization.

    In fertilizer blends, potassium-based arsenates bring order and predictability to long-term soil behavior, as growers reported with field trials run in cooperation with agronomy programs. The uptake differs, and the plant’s responses are distinct from what occurs after application of sodium or calcium arsenates. That feedback loop from farmers and researchers to the shop floor drives our ongoing efforts to keep specifications tight and test new process tweaks. Many customers only recognize the difference after switching and seeing improved shelf storage and less caking inside longer term storage bins.

    Addressing Long-Term Reliability and Product Lifecycle

    Our work speaks for itself through returning clients. Buyers at larger facilities have unique demands: some ask for batch traceability down to individual drum lots, while a growing number want extra certificates tracking trace ion content. Each request pushes us to invest further in analytics and record-keeping. Product managers and purchasing specialists spend time at our plant collecting data for their own compliance audits. They see firsthand the commitment our team brings to making arsenate salts that match published specs again and again.

    Decades of handling customer feedback have taught us to respond fast when product measurements deviate or a warehouse report signals an off-spec delivery. Customers recall poorly packed compounds arriving as hard cakes, dusty with fine material, or even with labels obscured by moisture. Our facility moved to airtight double-lining and stricter moisture checks precisely because of those lessons. Reliability builds through everyday practices—clear cleaning schedules, frequent calibration, and the expertise of chemical operators who learn to spot subtle changes in the material long before it reaches the packaging line.

    Upholding Quality through Direct Manufacturing

    Being hands-on with the full lifecycle of Potassium Dihydrogen Arsenate, we know each batch’s strengths and limitations. Many of the major challenges—dust generation, caking, impurity management—seem minor on paper but dominate daily work on the ground. The difference between top-quality chemical supplies and average ones often consists of dozens of small decisions made by people with firsthand knowledge of the material’s quirks. We keep technical staff involved from grinding through drying and packaging, building institutional memory and slowly refining every practice. This approach limits later surprises and backs up the strict quality claims our certificates make.

    Production never follows a fully automated recipe—a fact forgotten by those who only move finished goods between warehouses. Each production run demands finesse, careful management of reaction conditions, and non-stop vigilance in impurity removal. Whether producing a half-ton for a manufacturing customer or kitting out university laboratories, every drum or packet shows the value of close involvement. Sharing best practices with clients over years builds relationships rooted in trust, with real impact on their lab and factory work.

    Looking Ahead: Environmental and Market Trends

    Environmental stewardship matters deeply in producing any arsenic compound. Our shifts moved from simple waste capture years ago to integrating advanced treatment facilities, enabling full traceability of effluent and solid waste. Workers spend time reviewing new environmental controls, updating documentation, and even walking through internal waste audits with visiting clients or regulators. Each improvement addresses new demands from regulators and from customers alike. Safe use, proper handling, and measured disposal stay in focus as more users join regulatory programs or obtain their own certifications.

    The market grows more complex each year, as end users want not only tight specs but sustainability and ethical production. Our investments aim at reducing emissions at every step, alongside efforts to keep detailed documentation ready for third-party review. The transparency customers demand challenges each manufacturer to stay honest and proactive. We have found value in frequent open communication with buyers and stakeholders—sharing updates on methods, inspections, process changes, and downstream supplier management. Long-term buyers regularly audit our records, reinforcing a level of mutual accountability missing from markets managed only by intermediaries.

    Troubleshooting and Knowledge Sharing: Our Perspective

    Years spent manufacturing Potassium Dihydrogen Arsenate build a rare perspective on where things go wrong—and how to fix them. Stories from clients include tales of unset glass, ruined lab results, or batch contamination traced to a minor oversight upstream. We treat troubleshooting as a two-way exchange, supporting buyers with focused advice drawn from direct experience. Sometimes, adjusting drying cycles or running a secondary recrystallization corrects an emerging impurity problem. In other cases, changes in transport—switching from simple bags to lined drums in high humidity regions—eliminated recurring caking issues.

    Our technical support staff guide clients through questions about solubility, compatibility, and long-term storage. This consultative approach stems from years under the same roof as the production lines, empowered by the ability to make and analyze the product daily. We have worked side by side with customers to design larger chemical runs, validate pilot production, and even troubleshoot use in custom synthesis. Lessons learned flow back into our process, sharpening color checks, batch testing, and post-filtration analysis. Future improvements grow from every new question and every unusual production request.

    Commitment to Science, Reliability, and Practical Solutions

    Manufacturing Potassium Dihydrogen Arsenate for a world of users means walking a fine line between quality, safety, and service. Every change to process or packaging follows from practical feedback: how does the powder handle in lab and factory? Does it dissolve at the needed rate? Have trace ion levels drifted outside normal bands? Each batch we produce carries the results of years spent at every step, learning from tough days, failed tests, and the drive for better perfection. Our commitment lies in providing an authentic and dependable option for specialists who understand the demands of their work—trusting that the care invested at our end translates into better science and production outcomes in every facility we supply.