Formic Acid

Also known as: Acide formique, Acido formico, Add-F, Amasil, Bilorin, EINECS 200-001-8, FORMOL, Formic acid, Formira, HCOOH, Kwas metaniowy, MFCD00003274, MORBICID, Myrmicyl, acideformique, acideformique(french), acidoformico, formic, formic acid, kwasmetaniowy

Formic Acid (CAS 64-18-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula CH2O2 and a molecular weight of 46.025 g/mol. Key properties include a melting point of 8.2-8.4 °C(lit.), a boiling point of 100.6±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 29.9±13.4 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 64-18-6
Jingsj CID: J-1337131-9
Molecular Formula: CH₂O₂
Molecular Weight: 46.025 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	8.2-8.4 °C(lit.)
Boiling Point	100.6±9.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	29.9±13.4 °C
Exact Mass	46.005478
PSA	37.30000
LogP	-0.54
Additional Property	1.03 (vs air)
Vapor Pressure	36.5±0.2 mmHg at 25°C
Refractive Index	1.342
Additional Property	MISCIBLE

GHS Safety & Compliance

Flammable / Corrosion / Acute ToxicitySignal word: Danger

H226 — Flammable liquid and vapour
H302 — Harmful if swallowed
H314 — Causes severe skin burns and eye damage
H331 — Toxic if inhaled

Customs & Trade Information

HS Code	2915110000

Frequently Asked Questions

What is the CAS number of Formic Acid?

The CAS number of Formic Acid is 64-18-6.

What are the molecular formula and molecular weight of Formic Acid?

Formic Acid has molecular formula CH2O2 and molecular weight 46.025 g/mol.

Is Formic Acid hazardous?

Formic Acid has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Formic Acid?

For Formic Acid, Upstream Products: Microcrystalline cellulose, sucrose, Carbon dioxide; Downstream Products: Pentafluorophenyl formate, N-(2-chloro-3-fluorophenyl)formamide, N-Methyldibutylamine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Formic Acid (CAS 64-18-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1337131-9 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.