全氟庚酸

Description

perfluoroheptanoic acid · CAS 375-85-9 · C7HF13O2. UNII 4Q4V9K363Y. Boiling Point: 175 °C; Melting Point: 30 °C; Flash Point: > 113.00 °C (> 235.40 °F) - closed cup.

Identification

CAS Registry Number	375-85-9
PubChem CID	67818
Molecular formula	C7HF13O2
IUPAC name	2,2,3,3,4,4,5,5,6,6,7,7,7-tridecafluoroheptanoic acid
UNII (FDA)	4Q4V9K363Y

Computed Descriptors

Molecular Weight	364.06
XLogP3	4.3
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	15
Rotatable Bond Count	5
Exact Mass	363.9768954
Monoisotopic Mass	363.9768954
Topological Polar Surface Area	37.3
Heavy Atom Count	22
Formal Charge	0

Physical & Chemical Properties

Boiling Point	175 °C
Melting Point	30 °C
Flash Point	> 113.00 °C (> 235.40 °F) - closed cup
Density	1.792 g/cu cm at 20 °C/4 °C
Vapor Pressure	0.133 mm Hg at 25 °C
Vapor Pressure	1.18 ± 0.01 [log Psd at 298.15 K (Pa)]
Collision Cross Section	211.59 Ų [2M-H]-
Collision Cross Section	132.3 Ų [M-H-CO2]-
Collision Cross Section	147.61 Ų [M-H]-

Physical description & handling notes

• Beige crystalline solid
• Low melting solid
• Stable under recommended storage conditions.
• 77.9 ± 2.7 [ΔsubHb (kJ/mol) at 270.0-288.8 K]
• Index of refraction: 1.306 at 20 °C/D
• 132.4 Ų [M-H-CO2]- [CCS Type: DT; Buffer gas: N2; Ionization: ESI-; Dataset: PFAS]

Regulatory Status

GHS notification summary	5.6% (3 / 54)

GHS Hazard Classification

GHS notification summary	5.6% (3 / 54)
Reported hazard statements	H372, H302 (77.8%), H314 (90.7%), H360, H318, H331, H351

Documented Uses

• Long-chain perfluoroalkanecarboxylic acids and their salts are surface-active chemicals (surfactants), which greatly reduce the surface tension (surface energy) of water, aqueous solutions, and organic liquids even at low concentrations. These acids (C6- C12) and derivatives are used as wetting, dispersing, emulsifying, and foaming agents. /Long-chain perfluoroalkanecarboxylic acids/
• • AFFF (detected) [Ref:
• • Detected in membranes for apparel [Ref:
• • Detected in Formica, Oriented Strand Boards, Wooden Boards and Chipboards [Ref:
• • Detected in sandwich and popcorn paper [Ref: Blom C, Hanssen L. Analysis of Per- and Polyfluorinated Substances in Articles (M-360).; 2015.]
• • Detected in leather [Ref:

Synonyms

Perfluoroheptanoic acid; 375-85-9; Tridecafluoroheptanoic acid; PFHpA; Perfluoroenanthic Acid; Perfluoro-n-heptanoic acid; Heptanoic acid, tridecafluoro-; 2,2,3,3,4,4,5,5,6,6,7,7,7-Tridecafluoroheptanoic acid; DTXSID1037303; Tridecafluoro-1-heptanoic acid; 4Q4V9K363Y; DTXCID9017303; CHEBI:35547; PFHpA compound; TDFHA cpd; C7-PFA

Frequently Asked Questions

What are the CAS number and molecular formula of perfluoroheptanoic acid?

CAS 375-85-9; molecular formula C7HF13O2; molecular weight — g/mol.

What other names is perfluoroheptanoic acid known by?

Perfluoroheptanoic acid, 375-85-9, Tridecafluoroheptanoic acid, PFHpA, Perfluoroenanthic Acid, Perfluoro-n-heptanoic acid.

Is perfluoroheptanoic acid classified as hazardous?

5.6% of GHS notifications report no hazard classification (3 of 54).

What are the key physical properties of perfluoroheptanoic acid?

Boiling Point: 175 °C; Melting Point: 30 °C; Flash Point: > 113.00 °C (> 235.40 °F) - closed cup; Density: 1.792 g/cu cm at 20 °C/4 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.