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Ammonium Oxalate
Ammonium Oxalate (Product Code: SCL364/084) is a white crystalline salt in a 500 gm pack, used to test for calcium and to prepare the crystal violet stain for Gram staining in biology and chemistry labs. It is listed as an analytical reagent and comes with an MSDS, which makes it a standard item in a Gram stain kit for school and college laboratories. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Product | Ammonium Oxalate |
| Pack size | 500 gm |
| Grade (as listed) | Analytical reagent |
| Documentation | Supplied with MSDS |
| Shelf life | Depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted |
| Product code | SCL364/084 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is the Ammonium Oxalate Used For?
To test for calcium, a few drops of ammonium oxalate solution are added to the sample — milk whey, an extract of plant ash or a water sample — and a white precipitate of calcium oxalate shows that calcium is present. The same reaction serves as the confirmatory test for calcium in school salt analysis. In microbiology, ammonium oxalate is dissolved with crystal violet to prepare the primary stain for the Gram method, which divides bacteria into Gram-positive and Gram-negative groups.
Oxalates are harmful if swallowed and can irritate skin and eyes, so read the MSDS, wear gloves and goggles, and wash hands after use. Make up solutions with distilled water, because tap water may already contain calcium and give a cloudy result. Label each prepared bottle with its name and date, and keep the stock container tightly closed in a dry cupboard away from food.
Supplier
ScienceLab is the name under which Jain Scientific Equipments Private Limited, Ambala, Haryana, supplies reagents such as ammonium oxalate alongside the test tubes, balances and reagent bottles used to prepare and apply them. For vendor registration, the supplying company is GST-registered under GSTIN 06AAECJ8618A1ZT and ships export orders under Importer-Exporter Code AAECJ8618A (DGFT). It serves schools, colleges and laboratories in India and international markets; visit our company profile for more.
Related Biology Lab
Items needed to prepare and use ammonium oxalate solutions:
- Test Tubes (With Rim) — for calcium precipitation tests.
- Distilled Water — calcium-free water for making up the reagent.
- Digital Analytical Balance — weighs the salt accurately for each solution.
- Measuring Cylinder — measures the water when preparing solutions.
- Reagent Bottle, Narrow Mouth — stores the prepared reagent on the bench.
Browse our Biology Lab category for other reagents and stains.
Frequently Asked Questions
What quantity of Ammonium Oxalate is in each pack?
Each pack of Ammonium Oxalate contains 500 gm of the salt, listed as an analytical reagent and supplied with an MSDS. Solutions are made up from it as needed for calcium tests or Gram stain preparation.
What does Ammonium Oxalate test for?
Ammonium Oxalate is mainly used to test for calcium. When calcium ions are present in a sample such as milk whey or a plant-ash extract, a white precipitate of calcium oxalate forms in the test tube.
Why make up Ammonium Oxalate solution with distilled water?
Ammonium Oxalate reacts with any calcium present, and tap water often contains dissolved calcium. Using distilled water keeps the reagent clear, so a white precipitate in the test can be attributed to the sample itself.
Is Ammonium Oxalate hazardous to handle?
Yes. Ammonium Oxalate is harmful if swallowed and can irritate skin and eyes. Read the MSDS supplied with the pack, wear gloves and goggles, and wash hands after use; keep the stock away from food areas.
What is the shelf life of Ammonium Oxalate?
No blanket shelf life applies to Ammonium Oxalate, because shelf life depends on the chemical, its grade and storage conditions. Ask us for the expiry date of the batch you are quoted, and keep the container tightly closed in a dry cupboard.
Who supplies Ammonium Oxalate, and what should a quotation request include?
Ammonium Oxalate is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India. For a quotation, give code SCL364/084, the number of packs and the delivery destination; for international orders we also confirm the chemical shipping rules.
Request a Quote
To price Ammonium Oxalate, send an enquiry through our contact page or add it to the enquiry cart with the other reagents your lab needs.
Last updated: 24 September 2026
