Free lookupCAS 64-18-6

Formic acid

CAS 64-18-6 · PubChem CID 284 · CH2O2 · 46.025 g/mol

Also called formic acid, Methanoic acid, Formylic acid, Aminic acid, Bilorin.

Generate this as your own safety data sheet — $5

Opens the builder with Formic acid loaded
as component 1 at 100%.

01GHS classification

Flammable

Corrosive

Acute Toxic

Signal word

Danger

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

Precautionary statement codes

P210, P233, P234, P240, P241, P242, P243, P260, P261, P264, P264+P265, P270, P271, P280, P301+P317, P301+P330+P331, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P317, P321, P330, P363, P370+P378, P390, P403+P233, P403+P235, P405, P406, and P501

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H226Flammable liquid and vapor

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H290May be corrosive to metals

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H302Harmful if swallowed

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H314Causes severe skin burns and eye damage

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H318Causes serious eye damage

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

H331Toxic if inhaled

Regulation (EC) No 1272/2008 of the European Parliament and of the Council — fetched 2026-08-28

02Physical and chemical properties

Appearance

Colourless fuming liquid with pungent odour.

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Odour

Pungent, penetrating odor

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

Melting point

8 °C

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Boiling point

101 °C

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

Flash point

45 °C

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Auto-ignition temperature

520 °C

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Flammable limits

Lower flammable limit: 18% by volume; Upper flammable limit: 57% by volume

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

Vapour pressure

Vapor pressure, kPa at 20 °C: 4.6

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Relative density

Relative density (water = 1): 1.2 (20 °C)

ILO-WHO International Chemical Safety Cards (ICSCs) — fetched 2026-08-28

Solubility in water

no value printed

unsourced — inference candidate

Partition coefficient, log Kow

no value printed

unsourced — inference candidate

Viscosity

no value printed

unsourced — inference candidate

03Toxicological information

LD50 Dog oral 4000 mg/kg

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

LD50 Dog iv 3000 mg/kg /Sodium formate/

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

LC50 Mouse inhalation 6200 mg/cu m /15 min

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

LD50 Mouse oral 700 mg/kg

Hazardous Substances Data Bank (HSDB) — fetched 2026-08-28

This page is the evidence. The document is the deliverable.

Everything above is free and stays free. For $5 the same sourced values are assembled into a 16-section safety data sheet and a print-ready GHS label carrying your company details in Section 1.

Start a document — $5

What we read

Hazardous Substances Data Bank (HSDB), ILO-WHO International Chemical Safety Cards (ICSCs), Regulation (EC) No 1272/2008 of the European Parliament and of the Council.

33 sourced records for this substance are in the ledger. Values dated more than 30 days ago are re-fetched on the next document.

04Also in the ledger

Browse every chemical in the ledger · What a GHS safety data sheet contains