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Benzohydroxamic Acid

    • Product Name Benzohydroxamic Acid
    • Alias Benzohydroxamic acid
    • Einecs 226-455-8
    • 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

    639987

    Name Benzohydroxamic Acid
    Chemical Formula C7H7NO2
    Cas Number 495-18-1
    Molecular Weight 137.14 g/mol
    Appearance White to off-white solid
    Melting Point 126-130°C
    Solubility In Water Moderately soluble
    Boiling Point Decomposes before boiling
    Density 1.24 g/cm3 (estimated)
    Ph Slightly acidic in aqueous solution
    Odor Odorless
    Storage Conditions Store in a cool, dry place, protect from light
    Synonyms Benzohydroxamate, N-hydroxybenzamide

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

    Packing & Storage
    Packing Benzohydroxamic Acid is packaged in a 500g amber glass bottle with a tightly sealed cap, labeled with hazard and product information.
    Shipping Benzohydroxamic Acid should be shipped in tightly sealed containers to prevent moisture ingress and decomposure. It must be stored in a cool, dry, and well-ventilated area, away from heat, sparks, and incompatible substances. Proper shipping documentation and labeling according to regulations are necessary to ensure safe handling and transport.
    Storage Benzohydroxamic Acid should be stored in a tightly closed container, protected from light and moisture, and kept at a cool, dry, well-ventilated location. It should be separated from strong oxidizing agents and incompatible materials. Store under inert atmosphere if possible to prevent degradation, and ensure containers are clearly labeled. Regularly check for signs of decomposition and handle with appropriate protective equipment.
    Application of Benzohydroxamic Acid

    Applications of Benzohydroxamic Acid in Industrial Manufacturing

    Benzohydroxamic Acid serves as a specialized reagent and additive in several mature heavy and fine chemical industry sectors. As a qualified manufacturer, we supply this material to clients with exacting requirements on specification, impurity control, and regulatory compliance. Below are core application fields based on established market demand and regulated use.

    1. Sulfide Ore Flotation in Mining Processing

    Benzohydroxamic Acid is widely used in the mining sector as a selective collector during flotation of oxide and mixed oxide-sulfide ores, particularly with rare earth metals and copper ores. The compound forms stable complexes with metal ions, enabling targeted separation of valuable minerals from gangue. Efficient flotation enhances concentrate grade and recovery rates, contributing directly to plant throughput and refining economics. Operators carefully optimize reagent dosing to balance selectivity and yield based on orebody composition and circuit design.

    Industry compliance standards

    • ISO 9001-certified production and traceability
    • Chamber of Mines flotation additive registrations
    • National Environmental Standards for water effluents
    • Local occupational exposure guidelines (e.g. OSHA limits for airborne dust in plants)

    Typical usage ratio

    • 10–80 grams per ton of ore, adjusted based on ore mineralogy, pH, and targeted selectivity

    Downstream process integration

    • Added to conditioner stage prior to flotation cells
    • Blended on-site with other collectors or frothers as required by the specific ore matrix
    • Controlled by reagent dosing pumps linked to real-time process analyzers

    Final product types

    • Copper concentrates
    • Rare earth element concentrates
    • Oxide ore flotation tailings for further processing
    • High-grade metallic mineral outputs for refining

    2. Pharmaceutical Intermediate Synthesis

    This material functions as a building block in the synthesis of several active pharmaceutical ingredients, especially where hydroxamic acid derivatives confer biological activity, such as anticancer or enzyme-inhibiting agents. Manufacturers rely on precise, high-purity specifications to avoid undesirable side reactions and ensure batch-to-batch reproducibility. In API synthesis, quality teams monitor residual solvent and impurity levels in line with pharmacopoeial requirements.

    Industry compliance standards

    • Current Good Manufacturing Practices (cGMP)
    • ICH Q7 guidelines for API manufacture
    • Relevant monographs: USP, EP, JP (if used in final APIs that are listed)
    • FDA and EMA registration dossiers for designated intermediates

    Typical usage ratio

    • Stoichiometric ratios based on target molecule; typically 1.05–1.2 molar equivalents relative to acyl chloride or activated ester intermediates

    Downstream process integration

    • Charged to synthesis reactor during key condensation or acylation steps
    • Solubilized in polar aprotic solvents under controlled temperature and pH
    • Residual analysis as part of in-process control (IPC) and release testing

    Final product types

    • Hydroxamic acid-based API intermediates
    • Final-stage pharmaceutical active ingredients
    • Precursor libraries for structure-activity studies
    • Reference standards for analytical laboratories

    3. Polymerization Inhibitor in Acrylic Resin Production

    The compound mitigates unwanted polymerization during acrylic monomer storage, transportation, and thermal processing. Its chelating properties suppress radical formation, preventing runaway reactions and ensuring stable resin characteristics post-polymerization. Producers tailor inhibitor dosing based on resin line size, anticipated storage duration, and monomer reactivity. QC labs validate residual inhibitor content to meet end-use performance and safety criteria.

    Industry compliance standards

    • REACH Annex XVII compliance for inhibitor content
    • ISO 14001 Environmental Management Systems
    • Local chemical safety regulations governing inhibitor transport and handling
    • Industry consortia guidelines (e.g. ECPI for acrylic monomer producers)

    Typical usage ratio

    • 30–200 ppm relative to acrylic monomer volume, fine-tuned based on anticipated exposure to heat and storage time

    Downstream process integration

    • Dosed directly into monomer storage tanks or reaction vessels prior to heat-induced polymerization steps
    • Integrated into monomer stabilization packages alongside other chain transfer agents
    • Monitored using analytical techniques (e.g. GC-MS for residual inhibitor levels)

    Final product types

    • High molecular weight acrylic resins
    • Acrylic coatings and adhesives
    • Polymer sheet and film products
    • Emulsion polymerized latexes for paints and textiles

    4. Chelating Reagent in Analytical Laboratories

    Benzohydroxamic Acid allows analytical labs to separate and quantify trace metal ions in complex matrices through selective chelation. Its use in spectrophotometric or chromatographic assays depends on precise pH control and metal ion ratios, as interfering species may affect detection limits. Laboratories implement detailed protocols to ensure reliability and reproducibility, especially for environmental monitoring and speciation studies that inform regulatory compliance and resource management strategies.

    Industry compliance standards

    • ISO/IEC 17025 laboratory accreditation
    • EPA methods for water and soil metal ion analysis
    • EN 1233 (water quality determination via photometric measurement)
    • ASTM D5673 for trace metals by ICP

    Typical usage ratio

    • 0.1–2 mmol per liter of sample, set according to metal ion concentration and analytical method sensitivity

    Downstream process integration

    • Introduced during sample pretreatment for metal complexation
    • Dosed in-line prior to liquid or solid phase extraction
    • Ensures accurate calibration curves and blank controls in instrumental assays

    Final product types

    • Certified analytical data packages
    • Environmental compliance test reports
    • Reference solutions for instrument calibration
    • Metal speciation profiles for regulatory submission

    5. Corrosion Inhibitor in Industrial Water Treatment

    The material is formulated in water treatment blends as a chelating corrosion inhibitor, targeting iron and other transition metal ions in recirculating systems. It disrupts the electrochemical pathways that lead to scale formation and metal surface oxidation, thereby decreasing equipment downtime and maintenance. Dosage must reflect water hardness, flow rate, and system metallurgy, with continual monitoring of inhibitor performance and residual concentrations to sustain compliance and cost-effectiveness.

    Industry compliance standards

    • ANSI/AWWA standards for industrial water additives
    • ISO 50001 Energy Management in water-intensive operations
    • EPA NPDES discharge permits for effluent quality
    • Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) as applied to closed-loop chemicals in the US

    Typical usage ratio

    • 0.3–5 mg/L in recirculating water, varied as per system size, temperature, and scaling propensity

    Downstream process integration

    • Injected into circulating water loops at feedwater entry or directly into cooling towers/boilers
    • Combined with scale dispersants or biocides for multifunctional performance
    • Performance tracked via corrosion coupon testing and water sample titration

    Final product types

    • Corrosion inhibitor blends for HVAC and process cooling
    • Multipurpose conditioning packages for power plant boilers
    • Scale inhibition formulations for industrial process water systems
    • Closed-circuit protection fluids
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    Certification & Compliance
    More Introduction

    Benzohydroxamic Acid: Practical Insights and Real-World Application

    Opening up the Toolbox: Direct Experience with Benzohydroxamic Acid

    Benzohydroxamic Acid often lands on procurement lists for mining operations seeking improved flotation selectivity. From a chemist's bench to a full-scale mill circuit, this substance has shaped countless shifts through hands-on innovation. Here, we rely on more than lab data or supplier brochures. Each batch poured or weighed reflects years of on-site adjustment, system troubleshooting, and lengthy discussions with operators focused on extraction limits, not theoretical yields.

    This experience shapes our understanding. Unlike commodity chemicals whose role often blurs into background work, Benzohydroxamic Acid cuts through noise in mixed-oxide ores where more standard collectors stall out. Yes, its formula—C7H7NO2—sets the baseline. But beneath the surface, the real difference comes from its unique reactivity. In our plants, the pathways from raw material to purified Benzohydroxamic Acid rely on precise reaction control, avoiding even minor impurities that could drag down flotation performance.

    Model Variations and Their Rationale

    We fit Benzohydroxamic Acid into our product line according to feedback from operators, not theoretical modeling. Over the years, application in polymetallic ore beneficiation led us to adjust purity, crystal size, and moisture levels. We developed both fine powders suitable for fast-dissolving needs and coarser grains for slow-release circuits. The main model we produce commonly ranges in purity from 98% for critical flotation cells to adjusted batches closer to 95% where cost constraints outweigh trace impurity risks. For specialty work, ultra-high-purity grades serve research and pilot projects; their impact lies in how small changes—like residual chlorides—sometimes carry significant downstream effects in hydrometallurgical setups.

    Our team doesn't chase high purity numbers unless the operation warrants it. An enthusiast for product uniformity might overlook the hidden variables in process water chemistry, pH control, or ore mineralogy that can play a bigger role than another decimal point of content. Hands in the field have shown us that consistent performance comes from matching specifications to actual use. A formula tailored for one process might look out of place in another, and we've placed effort into making each grade with those practical differences in mind.

    Benzohydroxamic Acid Compared to Other Collectors: On-the-Ground Differences

    Many procurement teams ask how Benzohydroxamic Acid compares to traditional xanthates or other hydroxamic offerings. We welcome the question, as it speaks to the heart of operational efficiency. Xanthates—excellent for sulfide ores—occasionally slip in mixed-oxide circuits or where gangue penalizes recovery. Here, Benzohydroxamic Acid steps up, routinely outperforming in complex environments where iron oxides, rare earths, or even cassiterite frustrate more commonly used reagents.

    This isn't because it magically increases grade overnight—those sales pitches miss the point. On our end, improvements show up in the plant’s recovery curves across multiple shifts. Operators running difficult lepidolite, wolframite, and rare earth minerals come back, noting cleaner concentrate or higher yield at similar or lower dosages. We ran side-by-side trials in over a dozen sites over the past decade. In almost every case, adjustments in dosage, conditioning time, and pH optimization made the real difference, but only if the Benzohydroxamic Acid matched the ore characteristics.

    Other hydroxamic acids exist, often derived from the same base structure but with variations in substitution on the benzene ring or in the acyl group itself. In the lab, differences look minor. In the plant, those small chemical adjustments change solubility, resistance to oxidation, and even environmental handling requirements. Over time, we've heard from operators working in high-temperature circuits or highly acidic water requiring adjustments to formula and, often, custom runs of Benzohydroxamic Acid that go beyond a standard product code. Those adjustments secure stable performance, safer handling, or reduced downstream waste.

    Meeting the Needs of Real Operations

    Every mill, concentrator, or research facility operates under slightly different constraints; no one-size-fits-all solution works for every bench or crusher. Diesel soak, coil pumps, and aging process lines all introduce variables that can make even the best-designed chemical stumble. Through site visits and troubleshooting, we learned that effective deployment relies not only on product quality but also on delivery format, particle size, and packaging.

    We've shipped Benzohydroxamic Acid to remote gold operations deep in hard-to-reach mountain ranges and to modern plants with automated slurry addition. Some customers deal with frozen winters or humid monsoon seasons. All those conditions challenge packaging and shelf life. Based on feedback from clients who faced powder clumping or dissolution rates dropping in the field, adjustments in granulation, anti-caking treatment, and moisture barriers evolved into standard practice.

    A story that sticks involves a site in central Asia with extremes of both cold and heat, where trucks sat waiting for thawed roads. The customer approached us with a request for improved shelf stability; within six months, we'd reformulated and retested our product, personally following up to confirm no further degradation. Those calls at midnight, explaining subtle changes in blending procedure, leave a mark on how we engineer reliability, not just idealized quality.

    From Laboratory to Mine: Ensuring Performance, Protecting Health and Environment

    No one feels the pressure of regulatory and health standards like manufacturers who see products from raw synthesis to customer disposal. Benzohydroxamic Acid, while not considered a high-hazard material, still calls for strict controls during production and storage. Our own experience with off-gassing risks, dust control, and personal protective gear drove updates in facility design and workflow. Every new batch gets scrutinized for both chemical purity and physical stability, aiming to avoid surprises during application.

    We've heard stories about minor impurities leading to unanticipated odors, or slow leaching in storage bins prompting review from environmental auditors. Over the years, we worked with both in-house experts and third-party consultants to ensure that waste streams from our manufacturing and downstream usage align with local and global standards. It's not just about getting material out the door—it's about keeping product within spec, and users confident about operational safety and audit compliance.

    Customer concerns sometimes focus on environmental sustainability. Some sites require post-flotation treatment of water, ensuring that tailings ponds remain within regulated thresholds for organic residue. In response, we support pilot tests, provide analytical support, and share historic data—sometimes right on the line with auditors and local regulators—demonstrating breakdown rates of Benzohydroxamic Acid and its byproducts. Our policy leans toward transparency; a problem caught early, or a misapplication corrected promptly, almost always saves headaches down the road.

    Chemistry in Motion: Real Impact from Process to Payoff

    It's tempting to reduce specialty chemicals like Benzohydroxamic Acid to numbers or a bullet point in an engineering report. Years of interaction with field engineers and plant operators taught us how easily small dosing mistakes, or overlooked impurities, ripple across production lines. Unlike generic products, the value isn't always obvious until something goes wrong—a drop in concentrate grade, unscheduled shutdowns, or unexplained equipment fouling. We've been called in after misdosing caused tank build-up, worked overtime to restabilize formulation and supply new instructions on compatible feedstocks.

    Some successes don’t show up in spreadsheets: a reduced load on comminution circuits because of more efficient flotation, or a slightly higher pay metal content offsetting a poor market price. One customer, running a mixed rare-earths operation, once shared that switching to our supported Benzohydroxamic Acid model cut their reagent spend by fifteen percent over two years, mostly by stabilizing recoveries on hard-to-float monazite. Numbers like that only happen after hundreds of small trials, constant communications, and sometimes willingness to rerun a batch late at night to keep a plant running through a holiday weekend.

    This kind of partnership only develops when supplier and user both value transparency, tenacity, and willingness to discuss shortcomings firsthand. We deliver lots through customs paperwork, port delays, and surprise inspections, but what matters most are the on-the-ground lessons—whether from a foreman at a copper plant requesting a smaller drum size for manual addition or an R&D chemist wanting compositional logs for continuous improvement projects.

    Working with Benzohydroxamic Acid: User Experience, Dosage, and Maintenance

    Adding Benzohydroxamic Acid to a flotation circuit isn’t just dosing into a tank and walking away. We spend time watching how operators blend and distribute product, taking into account water temperature, pH drift, and side reactions with dissolved metals. Overdosing can cloud circuits; underdosing leaves valuables in tailings. Our technical staff travels with users during commissioning, adjusting routine and calibrating feed rates to local ore and equipment, not a generalized standard.

    Plant trials over the past decade have illuminated practical dosages. For complex oxide ores, typical feed ranges from 150 to 400 grams per ton, depending on collector interactions and mineral exposure. Where other collectors need a co-collector, Benzohydroxamic Acid often works alone, cutting down on chemical inventory and potential plant upsets. In ongoing or custom applications—such as a site processing mixed phosphate-rare earth stream—the dose may run even lower depending on solubility curves and selectivity tests.

    Our field team remains ready for troubleshooting. Unexpected precipitation, microbial growth, or changes in mineralogy can throw off even experienced hands. We’re open about sharing what’s worked elsewhere—sometimes a simple line flush or filtration step gets a system running again without needing costly spare parts. Documentation, feedback, and willingness to revisit batch records help us keep product performance close to its tested specifications, even after months on a warehouse shelf.

    Physical Properties, Storage, and Handling: Lessons Learned

    Exposing Benzohydroxamic Acid to moisture or heat risks clumping and loss of reactivity—a point learned the hard way after a misrouted shipment once sat covered on a tropical dock for a month. Packaging now features multilayer moisture barriers, and we recommend users store sealed drums in cool, dry rooms or chemical lockers. Some colleagues in humid, salt-air regions run dedicated dehumidifiers or silica gel canisters alongside inventory.

    Odor emissions often raise concerns for health and safety committees. While pure Benzohydroxamic Acid gives off only faint notes in controlled storage, degraded or impure material can create strong, phenolic smells. Training users to check for off-odors before dosing, and integrating routine shelf checks into maintenance, reduces bad batches and keeps material flowing to production instead of waste disposal.

    We support routine on-site testing—simple colorimetric checks or infrared verification go a long way toward confirming batch state. In cases where temperature swings in storage destabilized older lots, reprocessing or blending backlines prevent major write-offs and help keep plants up, even during logistical hiccups or customs delays.

    Choosing Benzohydroxamic Acid: Supporting Cleaner, Efficient Production

    Decision-makers don’t choose Benzohydroxamic Acid just for flotation numbers; they also weigh long-term operational stability, regulatory compliance, and user familiarity. Working with operators for decades, we’ve noticed that process stability outweighs marginal gains in laboratory efficiency. Plants running cleaner circuits encounter fewer downtime events, spend less on rework and disposal, and report fewer calls from environmental or health officers.

    By offering multiple product grades, customizable packaging, and ongoing support, we aim to meet specific operational needs—not a generic idea of “best-in-class” chemical. Supporting both large-scale mining consortia and smaller prospecting outfits over the years, feedback and adaptation have guided our evolution. Even subtle changes—like tweaking the packaging label to better reflect storage best practices—come from those long calls with on-site managers, not marketing studies.

    To us, Benzohydroxamic Acid represents more than a specialty product line. It marks a history of technical hurdles, collaborative fixes, and a steady march toward more responsible and effective mining chemistry. By focusing less on empty promises and more on direct user experience, we help keep operations resilient, cost-controlled, and ready for the next shift’s demands.