| Identification | More | [Name]
Heptafluorobutyric acid | [CAS]
375-22-4 | [Synonyms]
EDMAN REAGENT NO 3
FC-23
HEPTAFLUOROBUTYRIC ACID
HEPTAFLUORO-N-BUTYRIC ACID
HEPTAFLURORBUTYRIC ACID
HFBA
IPC-PFFA-4
N-HEPTAFLUOROBUTYRIC ACID
PERFLUOROBUTBUTYRIC ACID
PERFLUOROBUTYRIC ACID
RARECHEM AL BO 0423
TIMTEC-BB SBB008777
2,2,3,3,4,4,4-Heptafluorobutanoic acid
2,2,3,3,4,4,4-heptafluoro-butyricacid
butanoicacid,heptafluoro-
Butyric acid, heptafluoro-
butyricacid,heptafluoro-
Heptafluorbuttersαure
Heptafluoro-1-butanoic acid
Heptafluoro-1-butanoicacid | [EINECS(EC#)]
206-786-3 | [Molecular Formula]
C4HF7O2 | [MDL Number]
MFCD00004171 | [Molecular Weight]
214.04 | [MOL File]
375-22-4.mol |
| Chemical Properties | Back Directory | [Appearance]
clear liquid | [Melting point ]
-17.5 °C
| [Boiling point ]
120 °C755 mm Hg(lit.)
| [density ]
1.645 g/mL at 25 °C(lit.)
| [vapor density ]
7 (vs air)
| [vapor pressure ]
~10 mm Hg ( 25 °C)
| [refractive index ]
n20/D 1.3(lit.)
| [Fp ]
120-121°C | [storage temp. ]
2-8°C
| [solubility ]
Chloroform: soluble; Methanol: soluble | [form ]
Powder | [pka]
pK1:0.17 (25°C) | [color ]
Clear colorless to faint yellow | [Specific Gravity]
approximate 1.6 | [PH]
1 (H2O, 20℃) | [Water Solubility ]
miscible | [Sensitive ]
Light Sensitive | [BRN ]
1426882 | [InChI]
1S/C4HF7O2/c5-2(6,1(12)13)3(7,8)4(9,10)11/h(H,12,13) | [InChIKey]
YPJUNDFVDDCYIH-UHFFFAOYSA-N | [SMILES]
OC(=O)C(F)(F)C(F)(F)C(F)(F)F | [Uses]
Intermediate, surfactant, acidulant. | [CAS DataBase Reference]
375-22-4(CAS DataBase Reference) | [NIST Chemistry Reference]
Butanoic acid, heptafluoro-(375-22-4) | [EPA Substance Registry System]
375-22-4(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R34:Causes burns.
R35:Causes severe burns. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 3265 8/PG 2
| [WGK Germany ]
3
| [RTECS ]
ET4025000
| [F ]
3-8-10 | [Hazard Note ]
Corrosive | [TSCA ]
T | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
29159000 | [Storage Class]
8A - Combustible corrosive hazardous materials | [Hazard Classifications]
Eye Dam. 1
Skin Corr. 1A |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Perfluoropropionic acid-->Cyclopropanecarboxylic acid, 2,2,3,3-tetrafluoro-1-(trifluoromethyl)--->Perfluoropentanoic acid-->Perfluorohexanoic acid-->Pentadecafluorooctanoic acid-->Pivaloyl chloride-->Trifluoroacetic acid-->Perfluoroheptanoic acid-->HEXAMETHYLACETONE-->Butanamide, 2,2,3,3,4,4,4-heptafluoro-N-(2,2,3,3,4,4,4-heptafluoro-1-oxobutyl)--->1H-HEPTAFLUOROPROPANE | [Preparation Products]
N-Heptafluorobutyrylimidazole-->Heptafluorobutyric anhydride |
| Hazard Information | Back Directory | [Hazard]
Irritant to tissue. | [Chemical Properties]
Clear colorless to faintly yellow liquid | [Definition]
ChEBI: A monocarboxylic acid that is perfluorinated butyric acid. | [General Description]
Perfluorobutyric acid is an effective additive for zinc electrodeposition. | [Synthesis]
Industrial perfluorobutyric acid is prepared by electrochemical fluorination method, with butyryl chloride as the starting material, and anhydrous hydrogen fluoride electrolytic fluorination reaction occurs, the anode product by neutralization, acidifi | [Purification Methods]
Fractionally distil the acid twice in an Oldershaw column (p 10) with an automatic vapour-dividing head, the first distillation being in the presence of conc H2SO4 as a drying agent. (Take care with the hot acid.) [Beilstein 2 IV 810.] |
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