Ammonium Oxalate Supplier in Malaysia
- Also known as
- Diammonium Oxalate
- Diammonium Ethanedioate
- Ethanedioic Acid Diammonium Salt
- (NH4)2C2O4
Ammonium oxalate supplier for analytical laboratories, metal treatment shops and process chemistry buyers in Malaysia. Also written diammonium oxalate and (NH4)2C2O4, it is a white crystalline powder or colourless crystals, freely soluble in water and normally traded as the monohydrate.
It is the ammonium salt of oxalic acid, not the acid itself. That is the distinction that matters when a method is chosen, because the salt delivers the oxalate anion close to neutral pH while the free acid brings an acid charge with it. Sodium and potassium oxalate are separate salts again.
Analytical reagent grade is bought for titration and gravimetric work, particularly calcium determination, and laboratory grade covers routine solution make-up. Technical grade goes into metal surface treatment, electroplating pretreatment and the oxalate precipitation routes used in metal and rare-earth recovery, pigment preparation and catalyst preparation.
Send the grade, specification, pack size, quantity and delivery location with your enquiry, and say whether the ammonium salt or oxalic acid is intended. Availability, pack format, documentation and delivery timing are confirmed with the quotation, and supply is subject to applicable requirements.
- Formula
- (NH4)2C2O4
- Grade
- analytical reagent, laboratory, technical
- Appearance
- white crystalline powder or colourless crystals
Ammonium Oxalate grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Analytical reagent grade ammonium oxalate monohydrate | white crystalline powder or colourless crystals | — | Titration and gravimetric work to a published reagent specification, including calcium determination where the precipitate has to form cleanly and reproducibly. | Pack size and format are confirmed with the quotation. |
| Laboratory grade ammonium oxalate monohydrate | white crystalline powder | — | Teaching laboratories, routine solution make-up and method development where a reagent-quality salt is wanted without the certification of a full analytical grade. | Pack size and format are confirmed with the quotation. |
| Technical grade ammonium oxalate | white to off-white crystalline powder or crystals | — | Process quantities for metal surface treatment, oxalate precipitation and other industrial chemistry where a technical specification is acceptable. | Pack size and format are confirmed with the quotation. |
How to buy ammonium oxalate from ChemTrade
Request a quote for ammonium oxalate
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | white crystalline powder or colourless crystals | — |
| Traded hydrate | monohydrate is the form normally supplied; the anhydrous salt is treated as a separate material rather than an equivalent weight | — |
| Molecular formula | (NH4)2C2O4 for the salt; (NH4)2C2O4·H2O as the monohydrate | — |
| CAS number (monohydrate) | 6009-70-7 | — |
| CAS number (anhydrous) | 1113-38-8 | — |
| Solubility | soluble in water | — |
| Assay basis | purity stated against the reagent or technical specification for the grade selected, on the monohydrate basis | — |
| Usual grade checks | assay, insoluble matter, chloride, sulphate, heavy metals and residue on ignition, to the limits set by the specification being followed | — |
Ammonium Oxalate applications
Safety and handling
Store closed in a cool, dry area away from strong acids and oxidising agents, and keep the salt clear of food and feed materials. Avoid raising dust when weighing, and use gloves and eye protection. Follow the safety information for the grade quoted. Supply is subject to applicable requirements.
Common questions about ammonium oxalate
Is ammonium oxalate the same as oxalic acid?
No. Ammonium oxalate is the ammonium salt of oxalic acid, so it behaves as a near-neutral salt in solution rather than as a free acid. Oxalic acid is a separate product on its own page, and it should be ordered by name when the acid is what the process needs.
Which hydrate of ammonium oxalate is supplied?
The monohydrate is the form normally traded and the form most reagent specifications are written against. If a method assumes the anhydrous salt, say so in the enquiry, because the water of crystallisation changes the weighing basis.
What is the difference between analytical reagent and technical grade ammonium oxalate?
Analytical reagent grade is controlled to a published reagent specification with tight impurity limits, which analytical results depend on. Technical grade suits process quantities where the specification is looser and the cost per kilogram matters more. Both are the same salt, so choose on the limits your method or process requires.
Why is ammonium oxalate used for calcium determination?
Oxalate precipitates calcium quantitatively, and the ammonium salt supplies the oxalate near neutral pH without the acid load of oxalic acid. State the method being followed so the grade and its impurity limits can be matched to it.
Is ammonium oxalate the same as sodium oxalate or potassium oxalate?
No. They share the oxalate anion but differ in cation, solubility and behaviour in a method, so a procedure written for one should not be run on another. Order the exact oxalate salt by name.
What pack sizes suit an ammonium oxalate enquiry?
Laboratory requirements are usually small bench packs, while metal treatment and precipitation work is bought in larger quantities. Give the grade and the quantity you expect to use in a period, and the pack size and format are confirmed with the quotation.
What should an ammonium oxalate price enquiry include?
Provide the grade, the specification or impurity limits you work to, the pack size, the quantity and the delivery location, plus any documentation you need. Prices are issued with a stated validity period.