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Buffers and biological buffers

Ammonium formate

Also known as Formic acid, ammonium salt, Mravencan amonny, Formic acid, ammonium salt (1:1)

CAS 540-69-2Formula CH5NO2Molar mass 63.06 g/molEC 106-879-8
GHS signal word: Warning. Pictograms: Harmful or irritant 124 suppliers listed
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Ammonium formate chemical structure, CH5NO2, CAS 540-69-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
White monoclinic crystals
Melting point
116 °C
Boiling point
180 °C
Density
1.280
Solubility
IN WATER: 102 G/100 CC @ 0 °C, 531 G/100 CC @ 80 °C, SOL IN ETHER, AMMONIA
HS code
291512
Category
Buffers and biological buffers
Illustrative photo, colourless crystals in a clear glass bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Ammonium formate?

Plain description, key identifiers and synonyms

Ammonium formate is the ammonium salt of formic acid. It has a role as a buffer. It is functionally related to a formic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
azanium formate
CAS number
540-69-2 CAS number cross-checkedOther or deprecated CAS: 65387-23-7, 70179-79-2
EC numbers
106-879-8, 208-753-9
Molecular formula
CH5NO2
UNII
3801F9644E
MDL number
MFCD00013103
InChIKey
VZTDIZULWFCMLS-UHFFFAOYSA-N
InChI
InChI=1S/CH2O2.H3N/c2-1-3;/h1H,(H,2,3);1H3
SMILES (canonical and isomeric)
C(=O)[O-].[NH4+]

Synonyms

  • Formic acid, ammonium salt
  • Mravencan amonny
  • Formic acid, ammonium salt (1:1)
  • azanium, formate
  • Formic acid ammonium salt
  • ammoniumformate
  • ammonium formiate
  • azanium formate
  • Amoniumformiate
  • ammonia formate
  • ammonium format
  • amonium formate
  • Ammoniumformiate
  • ammonium-formate
  • formate ammonium
  • Formiate ammonia
  • annmonium formate
  • Ammonium-formiate
  • ammonium for-mate
  • ammonium formate-
  • ammonium formate salt
  • Hcoonh4
  • Formate, ammonium
  • mono-ammonium formate salt
  • HC(O)ONH4
Show all 27 synonyms
  • Ammonium formate, 99.9%
  • Ammonium formate 50% solution purified

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
White monoclinic crystalsexp.
Melting point
116 °Cexp.
Boiling point
180 °Cexp.
Density
1.280exp.
Solubility
IN WATER: 102 G/100 CC @ 0 °C, 531 G/100 CC @ 80 °C, SOL IN ETHER, AMMONIAexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
63.06 g/molcalc.
Exact mass
63.032 Dacalc.
LogP (octanol/water)
-1.26calc.
Topological polar surface area
76.63 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
4calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Ammonium formate suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 124 suppliers
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Where suppliers are based

124 suppliers in 19 countries

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Ammonium formate price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Chem anal to ppt base metals from salts of noble metals.

Industrial uses: Plating agent, Intermediate, Soil amendments (fertilizers).

Consumer uses: Soil amendments (fertilizers).

Industries and functions

Roles

  • buffer

How it is made

Prepd from formic acid & ammonia: zuffanti, j am chem soc 63, 3123 (1941).

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Ammonium formate is traded under.

HS 2915.12Indicative HS code

Salts of formic acid

World exports in 2024
$254M
−5.4% vs 2023, imports $286M
2019 to 2024
Top exporters
  1. China53.9%
  2. Germany17.7%
  3. Netherlands5.1%
Top importers
  1. United States11.5%
  2. Netherlands7.8%
  3. Brazil6.7%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Ammonium formate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Ammonium formate, based on the data on this page

What is Ammonium formate?

Ammonium formate is the ammonium salt of formic acid. It has a role as a buffer. It is functionally related to a formic acid.

What is the CAS number of Ammonium formate?

The CAS registry number of Ammonium formate is 540-69-2. Other or deprecated CAS numbers: 65387-23-7, 70179-79-2.

What is the molecular formula and weight of Ammonium formate?

The molecular formula of Ammonium formate is CH5NO2 and its molar mass is 63.06 g/mol.

What is Ammonium formate used for?

Chem anal to ppt base metals from salts of noble metals. Industrial uses: Plating agent, Intermediate, Soil amendments (fertilizers). Consumer uses: Soil amendments (fertilizers).

Is Ammonium formate hazardous?

Ammonium formate carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Ammonium formate?

Ammonium formate is usually classified under HS code 291512 (Salts of formic acid). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ammonium formate?

CompoundList lists 124 suppliers of Ammonium formate in United States, China, India, United Kingdom and 15 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Ammonium formate in India?

29 suppliers in India list Ammonium formate on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Ammonium formate?

Suppliers quote Ammonium formate on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Ammonium formate

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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