Analysis [portable]: Uni-chem Chemical Reagents Certificate Of

Navigating Uni-Chem Chemical Reagents and Certificates of Analysis (CoA)

In regulated laboratory environments, a chemical is only as reliable as the documentation that accompanies it. For researchers and industrial chemists using Uni-Chem chemical reagents, the Certificate of Analysis (CoA) is the definitive record of a product's quality, purity, and compliance. Whether you are performing high-precision chromatography or routine quality control, understanding how to access and interpret these documents is essential for maintaining data integrity. What is a Uni-Chem Certificate of Analysis?

A Certificate of Analysis is a batch-specific document issued by the manufacturer or a certified laboratory. It serves as a "birth certificate" for a specific lot of reagents, verifying that the product meets the pre-set technical specifications required for its intended use.

For reagents supplied by Uni-Chem—a brand frequently associated with laboratory equipment and chemical distribution—the CoA provides transparent proof of testing results. This document is a requirement in many ISO-certified labs and pharmaceutical settings where even trace impurities can compromise results. Key Components of a CoA

Every Uni-Chem CoA typically includes the following critical data points: uni-chem chemical reagents certificate of analysis

Product Identification: The official name, grade (e.g., Analytical Reagent, HPLC grade), and product code.

Lot/Batch Number: A unique identifier used to trace the specific manufacturing run of the reagent.

Analytical Results: The actual measured values for purity, moisture content, pH, or trace metal levels.

Expiry or Retest Date: The date until which the manufacturer guarantees the reagent's stability under proper storage conditions. Part 3: Anatomy of the Uni-Chem Certificate of

Authorization: A signature from the Quality Control (QC) department confirming that the batch has passed inspection. How to Obtain a CoA for Uni-Chem Reagents

Most modern chemical suppliers have moved to digital retrieval systems to ensure 24/7 access to documentation. To find a CoA for your Uni-Chem product, follow these steps: 1. Locate the Lot Number

The lot or batch number is usually found on the primary label of the chemical bottle, often near the barcode or expiry date. You will need this specific number, as specifications can vary slightly between different production batches. Certificates of Analysis (COA) | UCT

Part 3: Anatomy of the Uni-Chem Certificate of Analysis

When you request or download a Uni-Chem CoA, either via their website or through a distributor, you will see a standardized layout. Here is a line-by-line breakdown of what every field means. For products already purchased: Enter the 8-digit Batch/Lot

How to Obtain a Uni-Chem COA

1. For products already purchased: Enter the 8-digit Batch/Lot number from the bottle label into our online portal.
2. Before purchasing: Download a specimen COA from each product page on our website.
3. Bulk/Tanker orders: A signed, stamped COA is automatically included with the Bill of Lading.

SPECIFICATIONS & TEST RESULTS

| Test | Specification | Result | Method Reference | | :--- | :--- | :--- | :--- | | Appearance | White crystalline powder | Conforms | Visual Inspection | | Assay (dry basis) | ≥ 99.5 % | 99.8 % | Titration (USP) | | Identification (IR) | Matches reference standard | Conforms | FTIR | | pH (5% solution, 25°C) | 6.5 – 8.0 | 7.2 | Potentiometric | | Loss on Drying | ≤ 0.5 % | 0.2 % | Gravimetric (105°C) | | Residue on Ignition | ≤ 0.1 % | 0.05 % | Furnace (800°C) | | Chloride (Cl) | ≤ 0.01 % | < 0.005 % | Ion Chromatography | | Sulfate (SO₄) | ≤ 0.01 % | < 0.005 % | Turbidimetric | | Heavy Metals (as Pb) | ≤ 5 ppm | < 2 ppm | ICP-OES | | Iron (Fe) | ≤ 2 ppm | < 1 ppm | Colorimetric | | Water (H₂O) | ≤ 0.2 % | 0.12 % | Karl Fischer |

Q4: The CoA says “Retest Date: 2025.” Does the chemical expire in 2025?

A: For stable reagents, “Retest Date” means you must re-test the chemical before use after that date. It is often interchangeable with an expiration date for regulatory purposes.

Method 2: QR Code on the Bottle

Most Uni-Chem reagent bottles now feature a QR code on the label.

• Scan with a smartphone.
• Instantly redirects to the live CoA for that specific batch.
• Security feature: Live certificates cannot be easily photoshopped.

1. Full Transparency on Impurities

Many suppliers only report what passes. Uni-Chem reports all detectable impurities above 0.01%, even if they are within specification. This helps you troubleshoot unexpected reaction outcomes.