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HS Code |
789919 |
| Product Name | AR Lactic Acid 500g |
| Chemical Formula | C3H6O3 |
| Molecular Weight | 90.08 g/mol |
| Purity | Analytical Reagent (AR) Grade |
| Appearance | Colorless to pale yellow syrupy liquid |
| Pack Size | 500g |
| Cas Number | 50-21-5 |
| Solubility | Miscible with water |
| Storage Conditions | Store in a cool, dry place; tightly closed container |
| Density | 1.2 g/cm³ |
| Ph | 1.2 (1 M solution) |
| Boiling Point | 122°C (252°F) at 20 mmHg |
| Melting Point | 16.8°C (62.2°F) |
| Odor | Mild, characteristic odor |
| Hazard Class | Irritant |
As an accredited AR Lactic Acid 500g factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The AR Lactic Acid 500g comes in a sealed white plastic bottle with a blue screw cap and clear labeling indicating quantity. |
| Container Loading (20′ FCL) | AR Lactic Acid 500g can be loaded in a 20′ FCL, typically accommodating approximately 18,000 bottles securely for shipment. |
| Shipping | **Shipping for AR Lactic Acid 500g:** The chemical is securely packed in a sealed container to prevent leaks and contamination. It is shipped according to standard safety regulations, with labeling for proper handling. Delivery is typically within 3–5 business days, and shipping is restricted to qualified buyers due to its laboratory-grade classification. |
| Storage | AR Lactic Acid 500g should be stored in a tightly sealed container in a cool, dry, well-ventilated area away from direct sunlight and incompatible substances such as strong oxidizers and bases. Keep the container tightly closed when not in use. Store at room temperature and protect from moisture to maintain chemical stability and prevent degradation. |
| Shelf Life | AR Lactic Acid, 500g: Shelf life is typically 3 years if stored tightly sealed in a cool, dry place, away from light. |
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Purity 99%: AR Lactic Acid 500g with purity 99% is used in analytical laboratories, where it ensures accurate titration and reliable qualitative analysis results. Molecular Weight 90.08 g/mol: AR Lactic Acid 500g of molecular weight 90.08 g/mol is used in buffer preparation, where it guarantees precise pH control in biochemical assays. Melting Point 53°C: AR Lactic Acid 500g with a melting point of 53°C is used in standardization protocols, where it provides reproducible phase transition measurements. Density 1.206 g/cm³: AR Lactic Acid 500g at density 1.206 g/cm³ is used in specific gravity determination, where it offers consistent reagent calibration. Stability Temperature up to 40°C: AR Lactic Acid 500g with stability up to 40°C is used in chemical storage applications, where it maintains product integrity during extended shelf life. Low Metal Impurities: AR Lactic Acid 500g with low metal impurities is used in trace analysis, where it minimizes background interference for high-precision results. Aqueous Solubility 100 g/L: AR Lactic Acid 500g with aqueous solubility of 100 g/L is used in solution preparation, where it enables quick and homogeneous dissolution for laboratory protocols. Optical Activity [α]D20 +3.8°: AR Lactic Acid 500g exhibiting optical activity [α]D20 +3.8° is used in chiral synthesis reactions, where it imparts defined stereochemistry to target compounds. |
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Each time someone uncaps a jar of our AR Lactic Acid 500g, they hold in their hands not only a refined chemical, but something that goes through strict attention from the factory floor to the fill line. There’s a lot of talk in the chemical supply world about purity, but as producers, our standards don’t waver. AR – analytical reagent – stands for a grade that sits above simple industrial or technical versions. We don’t cut corners; there’s no substituting one lot for another or passing along last week’s leftover stock.
Lactic acid often gets pigeonholed as a food additive, but chemists in testing labs know it for its role as a pH adjuster, titration standard, or complex media component. In life sciences and research settings, anything less than AR can wreck templates, leave trace impurities, or introduce background noise that skews data. The only way to assure reliability and reproducibility is by producing each batch with methods that avoid cross-contamination and maintain unwavering purity. AR Lactic Acid isn’t made on shared equipment with lower grades; our facilities dedicate tank, reactor, and packaging lines only to materials that meet analytical requirements.
Our 500g packaging isn’t just a number on a label. It lines up with common laboratory usage—not too big to be wasteful, not too small to require frequent replacement. We know glass matters for some chemists, but we select packaging that keeps the acid stable, avoids leaching, and holds up to transfer between benches. Oxygen, moisture, and light can all impact lactic acid; that’s why storage controls receive as much care as the synthesis does.
By making our material in-house, we control each feedstock, each step in the crystallization and purification process. Fermentation-based lactic acid goes through a series of filtrations, solvent extractions, and careful evaporation. We don’t bulk blend; every kilo comes from a lot that’s traced from receipt of raw sugar to the moment it’s bottled.
Getting an AR-grade right takes patience. On a typical morning, our team inspects the color, checks the optical rotation, and digs into the acid’s ID signature using gas chromatography. We set real-life detection limits on side products—pyruvic acid, formic acid, and heavy metals. Anything that fails our specs doesn’t make it to a bottle. Bringing lactic acid from a fermentation reactor to AR grade means knowing the tricks impurities take to hide. For those relying on accurate assay work or making reference solutions, this level of purity matters.
Lactic acid isn’t simply “sour milk liquid.” Chemically, it’s 2-hydroxypropanoic acid—a dual-threat as both an alpha-hydroxy acid and a mild reducing agent. Industrial lactic takes on many forms: crude brown liquid for animal feed, food-safe for beverage acidification, even cosmetic blends. AR Lactic Acid separates itself entirely from these. We see requests from biologists using it in cell culture, textile scientists prepping dye baths, and water engineers verifying titrant curves. For every batch, the expectation is the same—a clear, colorless liquid or fine solid, free from organics, free from metals, ready to dissolve or pipette with full confidence it won’t mess up a standard curve or spike a GC.
We operate labs just like most of our customers. The results our QC team produces get compared daily with third-party controls from international standards agencies. As producers, we see firsthand what goes wrong when low-grade lactic acid sneaks into a process—strange smells, haze, unreliable pH shifts, spots on chromatography columns, or bioassay drift. Over years of troubleshooting, we learned to close gaps at every stage.
You might ask what makes the 500g AR Lactic Acid model stand out. A laboratory doesn’t run at the ton scale, yet repeated purchase of small bottles interrupts workflows and increases overall costs. By providing a 500g option, we align with the labs that mix solution batches without the risk of letting material expire. Our AR grade targets a minimum lactic acid content above 99%, with clarity and purity double checked before shipping. The narrow range keeps batch-to-batch variation in check, cutting down on time spent running unnecessary blank controls.
Having manufactured technical, food, and AR grades side by side, one thing is clear—customers benefit from knowing exactly what’s there and what’s not. Technical grade might pass for routine cleaning or non-critical pH work, but side reactions from by-products won’t do for analytical recipes. Our labs run ICP and HPLC on AR-grade batches, flagging anything above the strict thresholds for metals or non-lactic organics. We don’t batch blend, so every jar of AR Lactic Acid is accounted for, with full traceability covering raw input to finished product.
Distributors and traders often can’t answer where each batch came from, how it was handled, or how environmental exposure was prevented. As the producer, we handle each step: raw inputs, fermentation, downstream separation, and packaging. No unknowns sneak in, and no product sits in an uncontrolled warehouse or on a hot loading dock. We sample from every lot and keep retains for traceability and in-depth investigation if anything unusual appears. Our experience tells us that taking short cuts quickly shows up in real-world problems. If a pH buffer collapses or a reference standard advertises 99.5% but runs ten times too high on background metals, it’s not just paper loss—entire months of experimental data can fall under doubt.
We also tune our process to control optical isomerism. Not every lab cares about D- and L- lactic isomers, but when the application calls for single-enantiomer purity, it matters. Our production line tracks fermentation parameters, temperature, oxygen levels, and feedstock consistency, so that D:L ratios fall within internationally recognized benchmarks. Chiral impurities affect enzymatic studies, biopharmaceutical validation, and other highly sensitive work, so we keep tabs on these factors too.
A producer’s history with lactic acid goes back before AR grades were even defined by modern standards. Early on, separation involved a lot of glass, a lot of patience, and a knack for spotting by-eye what bends the rules. Over time, advances in membrane technology, vacuum distillation, and spectroscopy turned crude batches into finer, more differentiated products. Our operators have seen countless process hiccups: what happens if a filter press seals improperly, if temperature isn’t controlled to a fraction of a degree, or if the agitation rate varies by just a few RPM. Through every bit of this, we adapted—shutting down lines for deep cleaning, rewriting procedures, and using real-time analytics to pursue both safety and consistency.
Our AR material’s shelf life extends because each batch leaves the facility with accurate water content, stabilized by carefully controlled closure and packaging procedures. We monitor not only the lactic acid, but also the minor analytes that can trigger equipment or test failures. In the rush to keep up supply, some manufacturers can start to take shortcuts on batch time, process cleaning, or out-of-date analytical checks. We impose downtime, testing, and corrective work rather than let a batch slip by.
It’s easy to talk numbers on a page: acid strength, water level, metal content, color. What matters is what users notice in the lab. Through years of feedback from universities, process developers, and clinical research teams, we heard what sets our AR lactic acid apart. Our team addresses small visual changes, handles requests for supporting analysis, and regularly helps troubleshoot with customers. That partnership helps drive our process improvements—no one gets shuffled off to a generic help line.
With direct manufacturing, we monitor demands across the year to avoid shortages and quality dips that can come from buying on spot markets. We invest in redundancy and backup supplies, prioritizing direct shipment and environmental controls. We train every technician who touches AR lactic acid to understand downstream impacts—how a single microgram of iron or a stray aldehyde might ruin a day’s worth of work in another lab.
The impact of a poorly controlled lactic acid batch gets magnified when used in calibration curves, validation runs, or sensitive cell culture protocols. Our teams work not just to avoid these problems but to predict and prevent emerging issues. For instance, during shifts in raw material supply chains, we’ve kept our specifications unchanged by vetting new material sources in parallel, not in sequence. Nothing gets introduced until side-by-side testing shows identical outcome.
Demand for high-purity reagents only continues to rise with advancements in life sciences, diagnostics, and materials science. Each field brings its particular headaches: a new analytical technique might spot an impurity once unnoticed, or an updated pharmacopoeia requirement might adjust trace contaminant thresholds. Our years in manufacturing taught us to never assume yesterday’s solution solves tomorrow’s problems. If something doesn’t quite meet the mark—for instance, if a customer sees a baseline drift in an HPLC run connected to our acid—our technical team investigates, runs comparative data, and adjusts the production line before a bigger problem develops.
We maintain strict zoning throughout the facility so that each work area either supports or is separated from AR-grade materials. Cross-contamination is a risk in any chemical plant, but our layout physically walls off AR production from anything handled in technical or food lines. We balance production scheduling so that maintenance doesn’t introduce cleaning residues or other risks. More than once, we’ve traced tiny blips in an impurity profile to an upstream process change—changing a single grommet or gasket sometimes makes all the difference.
We’ve learned the most expensive problems start small. If a trace dose of acetaldehyde shows up in AR lactic acid, it can skew an entire kinetic study or trigger failed validation in a regulatory submission. It’s not about perfection for its own sake, but about building confidence that a single bottle will perform in the most demanding settings. Whether the acid ends up in a titration stand, a reference lab protocol, or as part of a custom assay, we avoid anything that would introduce signal error or baseline drift.
Seeing firsthand how much time gets wasted troubleshooting, re-running controls, or discarding compromised data drives us to push for tighter control—all the way from the first input chemical to the final lot sign-off. Years of experience taught us to never rely solely on digital records. Actual, hands-on checking—smell, clarity, lab-based controls—prevents most of the rare issues before a batch leaves the premises.
It’s common for customers to tell us about the pain of using inconsistent or off-spec acid. Stories usually come back from field testing, where a run of standard solutions behaves unpredictably, or from students in teaching labs whose titration results never quite line up after a batch change. These aren’t isolated frustrations; they’re reminders that “analytical grade” isn’t just a label, but a trust built over repeated trials in the real world.
We treat AR Lactic Acid 500g as a living product—always subject to improvement as our customers’ needs and the outside world change. Periodic upgrades in manufacturing tech, more sensitive analytical tools, and faster downstream feedback all contribute to how we run production and QC procedures. Environmental and safety regulations get stricter every year, shaping not just how we synthesize, but also how we package, store, and ship each bottle.
Waste reduction presents another ongoing challenge. We invest in recycling side streams and offcuts from the separation process, not only to increase yield but also to align with broader commitments to responsible production. Keeping purity in mind never means letting sustainability lag behind; instead, we’ve found that better-designed processes cut both contamination risk and unnecessary waste.
As an original producer of AR Lactic Acid 500g, we never lose sight of who uses our product: scientists who can least afford uncertainty in their reagents. Our internal teams handle technical support, and we learn firsthand from application feedback. Whenever a new challenge comes up—whether it’s an adjustment required for an ultra-sensitive protocol or questions about compatibility with certain storage conditions—our technical leads engage directly. The trust we build stems not from advertisements, but from long-term consistency and fast, transparent communication.
We have invested in ongoing training and process improvement, not just to deliver on specifications, but to support those pushing the boundaries of accuracy and reproducibility. Each year, as reference standards grow tougher, and as new testing techniques—such as high-resolution mass spectrometry or more precise enzymatic assays—become standard, our plant teams adapt. Hands-on learning, shared internal expertise, and customer feedback loops keep both our products and our processes ahead of the curve.
From concept to finished jar, making AR Lactic Acid 500g is a practice forged from experience, honesty, and ongoing problem-solving. We carry through every requirement ourselves and own each outcome, both good and bad. Each bottle signals many rounds of improvements, relentless batch control, and a direct relationship with the science it serves. Researchers count on us not only for a product, but also for the track record behind it—a history of managing minute variations and never settling for “good enough.” Our dedication to manufacturing AR-grade lactic acid means we produce results where they matter most: right at the bench, in the thick of discovery, analysis, and innovation.