Hexadecafluoroheptane Chemical Properties

Melting point:

-51.2°C

Boiling point:

82-84 °C(lit.)

Density 

1.745 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.3(lit.)

Flash point:

80-82°C

storage temp. 

Refrigerator, under inert atmosphere

solubility 

Chloroform, Methanol (Sparingly)

form 

A liquid

Specific Gravity

1.72

color 

Colourless

BRN 

1716335

Dielectric constant

1.76

Cosmetics Ingredients Functions

SKIN CONDITIONING
EMULSION STABILISING
ABSORBENT
ANTICAKING

InChI

1S/C7F16/c8-1(9,2(10,11)4(14,15)6(18,19)20)3(12,13)5(16,17)7(21,22)23

InChIKey

LGUZHRODIJCVOC-UHFFFAOYSA-N

SMILES

FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F

Surface tension

12.85mN/m at 20°C

CAS DataBase Reference

335-57-9(CAS DataBase Reference)

NIST Chemistry Reference

Heptane, hexadecafluoro-(335-57-9)

EPA Substance Registry System

Perfluoroheptane (335-57-9)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

RTECS 

MJ0875000

Hazard Note 

Irritant

TSCA 

TSCA listed

HS Code 

29033990

Storage Class

10 - Combustible liquids

Hazard Classifications

Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

Toxicity

LDLo ipr-mus: 4 g/kg CBCCT* 4,108,52

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Hexadecafluoroheptane Usage And Synthesis

Chemical Properties

Clear light yellow liquid

Uses

Hexadecafluoroheptane may be employed in solution-phase studies of perfluoropolyalkylene oligomers and in the preparation of fluorinated gel emulsions.

Definition

ChEBI: Perfluoroheptane is a fluorocarbon. It derives from a hydride of a heptane.

General Description

Hexadecafluoroheptane is a common liquid perfluoro-n-alkane. It is reported as fluorinated solvent. Encapsulation of hexadecafluoroheptane (Perfluoroheptane) by a microencapsulation method based on a Pickering emulsion templated interfacial atom transfer radical polymerization (PETI-ATRP) has been reported. Aggregation of diblock semifluorinated in perfluoroheptane (fluorinated solvent) has been reported. Physical properties and commercial/industrial uses of hexadecafluoroheptane has been reported.

Safety Profile

Low toxicity by intraperitoneal route. Poison by intraperitoneal route. When heated to decomposition it emits very toxic fumes such as Fí.

Synthesis

In a 1 L distillation flask fitted with a 0.75 in. x 2 ft. vacuum jacketed distillation column, 520 g of the crude product after electrolytic fluorination of n-heptane, which had been washed with water, was added.The reaction was held for 30 min after heating and refluxing.The fraction was then distilled at atmospheric pressure. With gas-liquid chromatography analysis, it was learned that the fraction contains 39% of C7 F16 , 26% of C7H16 and 35% of other substances. That is, the electrolysis product obtained by electrochemical fluorination contains 39% perfluoro-n-heptane.

Purification Methods

Purify it as for perfluorodimethylhexane. Other procedures include shaking with H2SO4, washing with water, drying with P2O5 for 48hours and fractionally distilling. Alternatively, it has been refluxed for 24hours with saturated acid KMnO4 (to oxidise and remove hydrocarbons), then neutralised, steam distilled, dried with P2O5, and passed slowly through a column of dry silica gel. It has been purified by fractional crystallisation using partial freezing. [Beilstein 1 IV 388.]

Hexadecafluoroheptane(335-57-9)Related Product Information

• Pentadecafluorooctanoic acid
• 1-Iodoperfluoro-C6-12-alkanes
• Perfluorooctyl iodide
• Perfluoroheptanoic acid
• (Perfluorohexyl)ethylene
• 2H,3H-Decafluoropentane
• Tetradecafluorohexane
• Hexafluoropropylene oxide
• Perfluorotributylamine
• GALDEN (TM) HT70
• 1H,1H,2H-Perfluoro-1-decene
• Perfluorooctane
• Heptane
• pentadecafluoroheptane-1-sulphonyl fluoride
• PERFLUORO-N-HEPTYL IODIDE
• 1H-PERFLUOROHEPTANE
• 1-BROMOPERFLUOROHEPTANE
• Hexadecafluoroheptane