What is a Certificate of Analysis (COA) in Chemical Procurement?

A Certificate of Analysis (COA) is an official quality document issued by a supplier or testing laboratory that confirms a chemical product meets its stated specification for a specific production batch.

What a COA Contains

A standard COA for an industrial or agro chemical typically includes:

• •Product name and chemical formula
• •Batch or lot number
• •Date of manufacture and analysis
• •Test parameters (purity, assay, moisture content, pH, mesh size, solubility, heavy metals, etc. depending on the product)
• •Test results with units
• •Specification limits (pass/fail against declared spec)
• •Method of analysis (titration, ICP, HPLC, gravimetric, etc.)
• •Authorised signatory from the quality control department

Why COA Matters for Buyers

Industrial buyers in regulated industries — agriculture, fertilizer, pharma, food, water treatment — need COA to:

• •Verify they are receiving the grade and purity they paid for
• •Fulfil regulatory compliance requirements for the end product
• •Support audit trails in ISO-certified or GMP operations
• •Protect against receiving off-spec material

A COA is particularly important when buying chemicals for pharmaceutical or food-grade applications where contamination or off-spec purity could cause serious downstream problems.

How to Request a COA from Mangalam Acid and Chemicals

At Mangalam Acid and Chemicals, COA is available for all products on request. When requesting a COA, mention:

1. Product name and grade required

2. Your order quantity

3. Batch reference (if referencing a specific prior order)

4. Specific parameters you need tested (e.g., purity min 98%, Fe content max 0.001%)

You can request COA documentation via our contact form or by emailing mangalamacidandchemicals@gmail.com.

COA vs MSDS — What is the Difference?

A COA confirms product quality and specification. An MSDS (Material Safety Data Sheet) covers safety information — safe handling, storage, transport classification, emergency response, and health hazards. Both are different documents and serve different purposes. Regulated industries often need both.