Ammonium oxalate, C2H8N2O4 – more commonly written as (NH4)2C2O4 – is an oxalate salt with ammonium (sometimes as a monohydrate). It is a colorless (white) salt under standard conditions and is odorless and non-volatile. It is the ammonium salt of oxalic acid, and occurs in many plants and vegetables.
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It and other oxalates are used as anticoagulants, to preserve blood outside the body.
Uses in Medical Laboratory to Count the Platelet Cells
- Chemical formula: C2H8N2O4
- Appearance: White solid
- Molar mass: 124.096 g·mol−1
Ammonium oxalate, 10g/l (1% w/v)
To make 100 ml:
- Ammonium oxalate. . . . . . . . . . . . . . . . . . . . . 1.0 g
- Distilled water. . . . . . . . . . . . . . . . . . . . . . . . 100 ml
- Weigh the chemical and transfer it to a completely clean screw-cap container.
- Add the water and mix until the chemical is completely dissolved. Label the bottle and store at 2–8°C.
Filter immediately before use to ensure the reagent is free from particles which could be mistaken for platelets.
Possible References Used
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