|
HS Code |
682528 |
| Product Name | AR Potassium Bitartrate |
| Chemical Formula | KC4H5O6 |
| Molar Mass | 188.18 g/mol |
| Grade | Analytical Reagent (AR) |
| Appearance | White crystalline powder |
| Package Size | 500g |
| Cas Number | 868-14-4 |
| Solubility | Slightly soluble in water |
| Storage Conditions | Store in a cool, dry place |
| Purity | ≥99% |
| Common Names | Cream of tartar |
| Density | 1.954 g/cm³ |
| Melting Point | circa 230 °C (decomposes) |
As an accredited AR Potassium Bitartrate 500g factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The 500g AR Potassium Bitartrate comes in a sturdy, sealed white plastic bottle with a blue screw cap and clear labeling. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for AR Potassium Bitartrate 500g: Approximately 12,000 bottles (500g each), safely palletized and shrink-wrapped for transport. |
| Shipping | The AR Potassium Bitartrate 500g is securely packaged in a sealed container to prevent contamination and moisture ingress. It is shipped in compliance with chemical handling standards, using protective outer packing. Shipping includes labeling as a laboratory reagent and follows all relevant transport regulations to ensure safe delivery. |
| Storage | Store AR Potassium Bitartrate 500g in a tightly sealed container, away from moisture, direct sunlight, and heat sources. Keep it in a cool, dry, and well-ventilated area, at room temperature. Avoid storing near incompatible substances such as strong oxidizing agents. Clearly label the container, and ensure access is restricted to authorized personnel to prevent accidental ingestion or misuse. |
| Shelf Life | AR Potassium Bitartrate 500g typically has a shelf life of 36 months when stored in a cool, dry, and tightly sealed container. |
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Purity 99%: AR Potassium Bitartrate 500g with purity 99% is used in analytical chemistry titrations, where it provides accurate endpoint determination. Fine Powder: AR Potassium Bitartrate 500g with fine powder form is used in buffer preparation, where it ensures rapid dissolution and homogeneous mixing. Stability Temperature 50°C: AR Potassium Bitartrate 500g with stability temperature 50°C is used in laboratory reagent storage, where it maintains chemical integrity under standard lab conditions. Heavy Metal Content <0.001%: AR Potassium Bitartrate 500g with heavy metal content less than 0.001% is used in food additive analysis, where it minimizes contamination risk and ensures compliance. Particle Size ≤ 100 μm: AR Potassium Bitartrate 500g with particle size ≤100 μm is used in pharmaceutical compounding, where it enhances uniformity in tablet manufacturing. Melting Point 230°C: AR Potassium Bitartrate 500g with melting point 230°C is used in thermal processing simulations, where it demonstrates high thermal resistance for calibration standards. Moisture Content <0.5%: AR Potassium Bitartrate 500g with moisture content below 0.5% is used in gravimetric analysis, where it guarantees minimal interference from water. Analytical Reagent Grade: AR Potassium Bitartrate 500g of analytical reagent grade is used in reference material preparation, where it assures traceability and reproducibility in measurements. Solubility 6g/L at 25°C: AR Potassium Bitartrate 500g with solubility 6g/L at 25°C is used in standard solution preparation, where it delivers consistent and accurate solution concentrations. pH Stability Range 3.5–5.5: AR Potassium Bitartrate 500g with pH stability range 3.5–5.5 is used in calibration buffer preparation, where it maintains buffer capacity and pH accuracy. |
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There’s something reassuring about handling a substance we’ve produced year in, year out, guided by strict laboratory and industry standards. AR Potassium Bitartrate, in its 500g packaging, goes beyond common baking or winemaking applications. Our facilities follow the tightly monitored processes mandated for analytical reagent quality, pushing for every batch to hit new levels of purity. Lab analysts know immediately when a reagent isn’t quite right: subtle shifts in color, a lingering residue, or a hint of contamination can throw off the whole run. For us, potassium bitartrate isn’t just a standard shelf product. It's a chemical backbone across different quality control regimes, from food research institutions to government test bureaus.
Our product doesn’t happen by accident. Grapes set the stage, but the transformations happen in stainless-steel vessels with automated temperature controls. This scale of processing brings out crystal forms free from the proteins and calcium that plague lower-grade tartars. Our teams run continuous, in-person checks along the drying lines and through the grinding stages. We don’t rely purely on instruments; a trained technician’s eye can catch shifts in color or clumping that slip past sensors. So when we pack each 500g unit, we check uniformity, not just because a certificate demands it, but because a spectroscopist, chromatography technician, or food quality chemist will spot it first if we fail.
Most offerings in the market serve culinary uses. The white powder clumps together, dusts off fingers with a slightly tangy taste, and ends up in bakeries. We take our AR—Analytical Reagent—designation seriously. This means rigorous testing for trace metals, loss on drying, sulfate, and sodium. Our internal benchmarks go beyond generic food codes. Scientists demand it. A titration of potassium bitartrate for acidity checks requires no interfering by-products. In chromatography, trace cations would wreak havoc with separation. Our specification puts KHC4H4O6 in line with academic and industrial research demands in terms of purity, particle consistency, and solubility.
If you compare AR Potassium Bitartrate to food-grade options, the differences can be subtle on paper but obvious in practice. Food-grade batches often carry residual fermentation by-products. These minute contaminants show up during sensitive tests and instrument calibration. We’ve learned to stack 20-kilogram sources side by side—one destined for supermarket shelves, another for analytical reagent production. Washing, filtering, and triple-recrystallizing the raw material forms the baseline. The result leaves an AR batch free from flavor notes, organic residues, and detectable metals. This is why many in the lab world trust only glass jars marked with clear batch identification and full traceability through our plant.
Size matters, especially in a laboratory or research setting. The 500g container offers enough material for repeat analyses while minimizing unnecessary exposure and waste. We’ve experimented with everything from plastic tubs to high-density glass, observing which seals block humidity and static. Over time, we arrived at tamper-evident packaging that withstands repeated opening under variable lab conditions—humid summer afternoons, dry winter heat. We store our potassium bitartrate far from strong odors or volatilized reagents; even microscopic particles can alter lab results in surprising ways. Regularly, we test retained samples from stored lots to check for signs of caking, yellowing, or surface crust, any of which signal shifts that undermine confidence.
Lab technicians reach for AR Potassium Bitartrate in titrations where acidity measures need near-theoretical accuracy. In our experience, educational institutions often use it to train new chemists in analytical procedures—precision titration, calibration, and as a reference standard in acidity testing. Where students and instructors require reliability, only the consistent reactivity and known purity of AR-class material prevent teaching mishaps.
Quality-control managers in food production plants rely on potassium bitartrate during ingredient validation and process monitoring. The difference in result stability often comes down to these subtle purity gradients. Lower grade reagents trigger failed quality checks, leading to recalls and expensive production halts. Years ago, we partnered with a major test lab that reported erratic calibration curves from inconsistent tartaric acids. Switching over to our AR grade, they documented substantial process gains, validated through repeatable blind sample testing.
Not everyone outside chemical manufacturing appreciates how contaminants ride along with raw starting materials. Years of experience have taught us that, even after careful source selection, bio-origin materials require persistent monitoring. Tartaric contamination originates easily: grape must carries proteins, other organic acids, and traces of pesticides. Through each refining step, our crew logs parameters, double-checks pre-crystallization temperatures, and tracks residue readings. AR Potassium Bitartrate only earns its designation after passing screens for heavy metals, moisture, and insoluble matter.
We see the impacts of these standards every time our customers run high-sensitivity assays. In applications like Karl Fischer titration, potentiometric acid-base titration, or high-performance liquid chromatography, anomalies can hide until the final calculation. A spike in sodium content or even a small drift in loss-on-drying figures can cost both time and reputation. Our supervision at every production phase—from harvest selection and preliminary washing through to final bagging—secures our confidence in what we ship.
Over the decades, chemists have reached out to us not only for documentation but for production records and even retained batch samples. Institutions planning year-long studies have run pilot tests on our batches, requesting extended certificates and photographs of the production line. Our factory keeps a lot-wise audit trail—test results, operator signatures, and digital batch logs—so traceability doesn’t stop at the warehouse door.
One university research group called with an unusual observation: their particular method for measuring wine acidity needed titration endpoints free of the faintest hint of calcium. Within two weeks, we supplied a run of AR potassium bitartrate tested specifically for their target analyte, outside of our routine protocol. Our internal labs compared parallel filtration media and crystallization conditions, finding minor tweaks to drop calcium below the customer's limit of detection. The next audit from the university’s procurement team verified their supply chain as one of the most responsive and reliable among all laboratory chemical providers they surveyed.
Some sectors underestimate the difference between lab-grade and AR grade. Once, a food processing partner tried to save on costs by sourcing technical potassium bitartrate for use in precise beverage analytics. Very quickly, batch-to-batch discrepancies appeared. Formulation teams traced the problem back to raw material purity, including issues such as trace sodium and magnesium fluctuating with each delivery. After switching back to our AR grade, they reported stable pH profiles and more predictable shelf-life studies.
Cost-saving makes sense in scale operations, but only if the savings don’t cause errors that ripple all the way downstream. Our experience with partners facing batch recalls or audit failures convinced us early that transparency, clear communication, and rigorous sample testing build the best client relationships. We’ve sent personnel onto customer production lines, checking how our packaging holds up in real-life situations and what problems crop up with dispensing or residue. This feedback loop leads to packaging improvements and, where possible, adjustments in flow characteristics—some researchers want a finer grind; others need larger crystals for easier handling in humid conditions.
We take pride in how universities and technical schools rely on our potassium bitartrate to structure laboratory exercises. Entry-level chemistry students use it to prepare buffer solutions and titrate strong acids with clear, unambiguous endpoints. Curriculum developers often select our AR grade because of its reproducible reactivity: instructors can demonstrate solution preparation, buffer capacity, and pH calculation without troubleshooting unexpected by-products or fluctuating purity.
In our own experience, the importance of batch-to-batch reproducibility makes itself clear when supporting method validation studies. Labs publishing new protocols or testing unknown substances want reagents that anchor every result—eliminating the reagent as a source of variation. We’ve fielded calls from research supervisors concerned about odd results, only to trace the source to a switch in supplier or a temporary foray into non-AR alternatives. Every chemical manufacturer knows this—true AR-grade supply means peace of mind throughout research cycles.
A specialty paint additives company with a rigorous water-soluble component specification once reported persistent cloudiness in their test runs. We worked with their QA lab over several weeks, reviewing their application and offering additional analysis of retained AR potassium bitartrate lots. Detailed screening found undetectable traces of a by-product, which we isolated through chromatography. This led us to adjust our filtration media for specific runs. Since then, the company has relied on regular shipments tied directly to their project schedules, optimizing resource planning and reducing formulation headaches.
Our plant foremen recall an international shipment held at a port due to ambiguous customs interpretation regarding the AR versus food-grade labeling. The receiver needed fast batch testing and documentary evidence to support urgent pharmaceutical audits. Our records, supported by extra retained samples, cleared the shipment and saved their schedule. It’s not simply about supplying a chemical—supporting science, protecting process integrity, and being ready to advise partners with practical advice makes our work worthwhile.
Our production teams face increasing scrutiny from domestic and international regulators. The environmental impact of processing grape-based chemicals matters to both our neighbors and the scientists who use our product. Over the years, we adopted closed-loop washing and recycling systems, reducing water consumption while ensuring no trace organics find their way back into the community.
Routine site audits make us better manufacturers. Auditors check discharge records, interview operators on material segregation, and inspect cleaning logs. These checks prevent accidental cross-contamination with other organic acids or salts. When required, we submit potassium bitartrate samples to third-party laboratories for independent verification of purity and absence of regulated impurities. Such practices not only keep us compliant but reaffirm our commitment to delivering transparent, safe chemistry.
Lab managers trust our AR potassium bitartrate when trialing new methods for food testing and environmental monitoring. Chemical innovation depends upon reagents that don’t vary from lot to lot. On rare occasions, we’ve partnered with startups needing reference samples for handheld analytical devices—consistency in the test medium gives their devices a proper proving ground. Each new device call-out triggers a review in our process logs, solidifying that continuous improvement remains part of our identity.
Our staff includes past bench chemists, food technologists, and analytical method developers. This background helps us understand why a seemingly simple salt can derail a project. We see how even minor tweaks in washing, drying, or milling produce differences that a seasoned scientist notices. Sharing these observations with users closes a valuable loop: we learn from the lab, and the lab benefits from our production-side vigilance.
Potassium bitartrate, as produced to AR standards, looks like a straightforward chemical. Its real-world value only emerges in the hands of people who demand accuracy—chemists checking grape must before bottling, researchers titrating acids, or teachers running experiments. We’ve learned from years of shipment tracing, fielding technical questions, and validating rejected lots from competitors that hidden variability is the biggest source of cost, error, and wasted time in modern analytics.
Direct input from our end users keeps us alert. A batch that appears fine under bulk testing sometimes reveals flaws in edge cases. Because we keep communication lines direct—no layers of agencies or exporters—feedback reaches the production floor quickly, driving changes and improvements batch by batch.
For us, AR Potassium Bitartrate in the 500g format embodies the partnership between maker and user. We see ourselves not just as suppliers, but as contributors to scientific discovery and reliable quality assurance across a surprising spread of fields. Our hope is that every package shipped serves as a reminder of the rigor, humility, and openness that defines true chemical manufacturing.
Whether supporting new curriculum designs, test laboratories pushing chemistry frontiers, or manufacturers aiming for greater control, we remain committed to transparent practices, responsive support, and quality that stands up to the highest scrutiny. Each batch of AR Potassium Bitartrate reflects the trust built across years of genuine collaboration.