Chemical products
  • Ammonium Formate CAS 540-69-2

Ammonium Formate CAS 540-69-2

Ammonium Formate is supplied as a low-molecular-weight ammonium salt, commonly used as a buffering component, reducing agent, and intermediate in chemical and analytical processes. It is frequently applied in laboratory systems as well as in industrial reactions where controlled decomposition or mild reducing conditions are required.

Typical applications include use in analytical chemistry (such as mobile phase preparation), catalytic transfer hydrogenation systems, and as a precursor or intermediate in chemical synthesis. It is generally supplied as a white crystalline solid suitable for dissolution or direct use in process systems. Standard export packaging, bulk supply, and documentation such as COA, TDS, and SDS are available to support procurement and technical use.

  • CAS: 540-69-2
  • Synonyms: Formic acid ammonium salt; Ammonium methanoate
  • Einecs: 208-753-9
  • Molecular Formula: CH5NO2
  • Grade: Industrial / analytical grade (depending on application)
  • Package: Available in standard moisture-protected packaging suitable for crystalline materials
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Product Description

Physicochemical Properties

ItemTypical Value
AppearanceWhite crystalline solid
OdorOdorless to slight ammonia-like odor
Molecular Weight63.06 g/mol
Melting PointApprox. 116°C (decomposes)
SolubilityHighly soluble in water
pH (aqueous solution)Typically slightly acidic
StabilityDecomposes upon heating to release ammonia and formic acid derivatives

Typical Applications

  • Buffering agent in analytical chemistry, including mobile phase preparation
  • Reagent in catalytic transfer hydrogenation and reduction systems
  • Intermediate in chemical synthesis and processing
  • Use in laboratory and research applications requiring volatile ammonium salts

For related formate and ammonium salt pages, review Sodium Formate, Potassium Formate, and Ammonium Acetate.

Packaging

Ammonium Formate is typically supplied as a crystalline solid packed in moisture-resistant bags or fiber drums with inner liners to prevent moisture uptake and contamination. Packaging is designed to maintain product stability during transport and storage. Packaging formats can be arranged according to order volume and handling requirements.

Storage

Store in a cool, dry, and well-ventilated area. Keep containers tightly sealed to prevent moisture absorption and decomposition. Avoid exposure to heat sources and maintain packaging integrity during storage and transportation.

FAQ - Technical & Supply Chain

  • Q:

    What is Ammonium Formate CAS 540-69-2?

    A: Ammonium Formate, also known as formic acid ammonium salt or ammonium methanoate, is a white crystalline solid with the molecular formula CH5NO2 and molecular weight 63.06 g/mol. Its EC number is 208-753-9, and it is commonly used in analytical chemistry and chemical synthesis.
  • Q:

    Why is Ammonium Formate widely used in LC-MS mobile phases?

    A: Both the ammonium ion and formate ion are volatile, so Ammonium Formate can control mobile-phase pH and ionic strength without leaving the heavy nonvolatile salt deposits associated with sodium or potassium buffers. This makes it especially suitable for LC-MS, HPLC-MS, and other detection methods where low residue and good ionization compatibility matter.
  • Q:

    What is the role of Ammonium Formate in catalytic transfer hydrogenation?

    A: Ammonium Formate acts as a convenient hydrogen donor in transfer hydrogenation and reduction systems. With catalysts such as palladium on carbon, nickel, or copper, it can reduce nitro groups, carbonyl compounds, alkenes, and other reducible substrates without requiring pressurized molecular hydrogen.
  • Q:

    What happens when Ammonium Formate is heated?

    A: Ammonium Formate decomposes on heating, initially forming formamide and water, and further heating can release ammonia and other decomposition products. For this reason it should not be exposed to high heat for prolonged periods, and storage should be cool, dry, and sealed.
  • Q:

    What is the difference between Ammonium Formate and Ammonium Acetate?

    A: Both are volatile ammonium salt buffers, but Ammonium Formate is based on formic acid and is generally selected for lower-pH mobile phases or applications where formate is the preferred anion. Ammonium Acetate is based on acetic acid and is often used at somewhat higher pH; the best choice depends on the target pH range, analyte chemistry, and detection method.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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