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Substance Name: Formic acid
RN: 64-18-6
UNII: 0YIW783RG1
InChIKey: BDAGIHXWWSANSR-UHFFFAOYSA-N

Molecular Formula

  • C-H2-O2

Molecular Weight

  • 46.0248
 

Classification Codes

Classification Codes

  • Human Data
  • Mutation Data
  • Skin / Eye Irritant
  • Tumor Data

Superlist Classification Codes

  • Reportable Quantity (RQ) = 5000 lb
  • TWA (5 ppm); STEL (10 ppm)
  • TWA 5 ppm (9 mg/m3)

Names and Synonyms

Name of Substance

  • Formic acid

Synonyms

  • Acide formique
  • Acide formique [French]
  • Acido formico
  • Acido formico [Italian]
  • Add-F
  • AI3-24237
  • Ameisensaeure
  • Ameisensaeure [German]
  • Aminic acid
  • Bilorin
  • C1 acid
  • CCRIS 6039
  • Collo-bueglatt
  • Collo-didax
  • EC 200-579-1
  • EINECS 200-579-1
  • EPA Pesticide Chemical Code 214900
  • FEMA No. 2487
  • Formic acid
  • Formic acid (natural)
  • Formicum acidum
  • Formira
  • Formisoton
  • Formylic acid
  • HSDB 1646
  • Hydrogen carboxylic acid
  • Kwas metaniowy
  • Kwas metaniowy [Polish]
  • Kyselina mravenci
  • Kyselina mravenci [Czech]
  • Methanoic acid
  • Mierenzuur
  • Mierenzuur [Dutch]
  • Myrmicyl
  • RCRA waste number U123
  • Spirit of formic acid
  • UNII-0YIW783RG1

Systematic Name

  • Formic acid

Superlist Names

  • Formic acid
  • Formic acid [UN1779] [Corrosive]
  • RCRA waste no. U123
  • UN1779

Registry Numbers

CAS Registry Number

  • 64-18-6

FDA UNII

  • 0YIW783RG1

Other Registry Numbers

  • 1016316-60-1
  • 67382-92-7
  • 8006-93-7
  • 82069-14-5

Related Registry Numbers

  • 141-53-7 (hydrochloride salt)
  • 15843-02-4 (unspecified nickel salt)
  • 15907-03-6 (unspecified copper salt)
  • 27115-36-2 (chromium(+3) salt)
  • 3349-06-2 (nickel(+2) salt)
  • 3495-35-0 (rubidium salt)
  • 3495-36-1 (cesium salt)
  • 4464-23-7 (cadmium salt)
  • 540-69-2 (ammonium salt)
  • 544-17-2 (calcium salt)
  • 544-18-3 (cobalt(+2) salt)
  • 544-19-4 (copper(+2) salt)
  • 556-63-8 (lithium salt)
  • 557-39-1 (magnesium salt)
  • 557-41-5 (zinc salt)
  • 590-29-4 (potassium salt)
  • 592-89-2 (strontium salt)
  • 63182-21-8 (chromium(+3)-hydrochloride[4:1:1] salt)
  • 68134-59-8 (unspecified copper-nickel salt)
  • 68310-83-8 (unspecified copper-ammonium salt)
  • 70179-79-2 (ammonium[4:1] salt)
  • 7056-83-9 (unspecified lead salt)
  • 7360-53-4 (aluminum salt)
  • 811-54-1 (lead(+2) salt)
  • 992-98-3 (thallium(+1) salt)

System Generated Number

  • 0000064186

Structure Descriptors

InChI

InChI=1S/CH2O2/c2-1-3/h1H,(H,2,3)

InChIKey

BDAGIHXWWSANSR-UHFFFAOYSA-N

Smiles

OC=O

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
dog LD50 oral 4gm/kg (4000mg/kg)   AMA Archives of Industrial Health. Vol. 20, Pg. 517, 1959.
dog LDLo intravenous 3gm/kg (3000mg/kg)   "Handbook of Toxicology," 4 vols., Philadelphia, W.B. Saunders Co., 1956-59Vol. 1, Pg. 146, 1955.
man TCLo inhalation 7300ug/m3/8H (7.3mg/m3) KIDNEY, URETER, AND BLADDER: OTHER CHANGES IN URINE COMPOSITION Archives of Toxicology. Vol. 66, Pg. 522, 1992.
mouse LC50 inhalation 6200mg/m3/15M (6200mg/m3) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

LUNGS, THORAX, OR RESPIRATION: DYSPNEA		 Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 23(12), Pg. 49, 1979.
mouse LD50 intraperitoneal 940mg/kg (940mg/kg)   Igiena. Vol. 11, Pg. 507, 1962.
mouse LD50 intravenous 145mg/kg (145mg/kg)   Zeitschrift fuer Ernaehrungswissenschaft. Vol. 9, Pg. 332, 1969.
mouse LD50 oral 700mg/kg (700mg/kg) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)		 Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 23(12), Pg. 49, 1979.
rabbit LDLo intravenous 239mg/kg (239mg/kg)   "Handbook of Toxicology," 4 vols., Philadelphia, W.B. Saunders Co., 1956-59Vol. 1, Pg. 146, 1955.
rat LC50 inhalation 15gm/m3/15M (15000mg/m3) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)		 Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 23(12), Pg. 49, 1979.
rat LD50 oral 1100mg/kg (1100mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

LUNGS, THORAX, OR RESPIRATION: DYSPNEA		 Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 23(12), Pg. 49, 1979.
women LDLo oral 2440ug/kg (2.44mg/kg)   American Journal of Emergency Medicine. Vol. 7, Pg. 286, 1989.
women LDLo oral 2440ug/kg (2.44mg/kg) BLOOD: OTHER HEMOLYSIS WITH OR WITHOUT ANEMIA

VASCULAR: SHOCK		 American Journal of Emergency Medicine. Vol. 7, Pg. 286, 1989.
women TDLo oral 2200mg/kg (2200mg/kg)   Journal of Toxicology, Clinical Toxicology. Vol. 32, Pg. 199, 1994.
women TDLo oral 2200mg/kg (2200mg/kg) KIDNEY, URETER, AND BLADDER: HEMATURIA

LUNGS, THORAX, OR RESPIRATION: SPUTUM		 Journal of Toxicology, Clinical Toxicology. Vol. 32, Pg. 199, 1994.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 8.3 deg C   EXP
Boiling Point 101 deg C   EXP
pKa Dissociation Constant 3.751 (none) 25 EXP
log P (octanol-water) -0.54 (none)   EXP
Water Solubility 1.00E+06 mg/L 25 EXP
Vapor Pressure 42.6 mm Hg 25 EXP
Henry's Law Constant 1.67E-07 atm-m3/mole 25 EXP
Atmospheric OH Rate Constant 4.50E-13 cm3/molecule-sec 25 EXP

Physical property data is provided to ChemIDplus by SRC, Inc.