heptafluorobutyric acid

structural formula

business number	04k1
molecular formula	c4hf7o2
molecular weight	214.04
label	edman’s reagent no. 3, fluorobenzoic acid, perfluorobutyric acid, edman reagent no. 3, hfba, per fluorobutyric acid, aliphatic compounds, catalyst, active agent, acidifier

• numbering system
• physical property data
• toxicological data
• ecological data
• molecular structure data
• computing chemical data
• more
  • properties and stability
  • storage method
  • synthesis method
  • purpose

numbering system

cas number:375-22-4

mdl number:mfcd00004171

einecs number:206-786-3

rtecs number:et4025000

brn number:1426882

pubchem id:none

physical property data

一 , physical property data

traits ：colorless oily liquid

density (g/ml,25/4℃): 1.651

relative vapor density (g/ml, air=1)：7

melting point (ºc): -17.5

boiling point (ºc, normal pressure): 120

boiling point (ºc, 5.2kpa): not available

refractive index: 1.295
flash point (ºc): 120- 121

optical rotation (º): not available

spontaneous combustion point or ignition temperature (ºc): not available

steam pressure (kpa, 25ºc): not available

saturation vapor pressure (kpa, 60ºc): not available

burn heat (kj/mol):not available

critical temperature (ºc): not available

critical pressure (kpa): not available

oil and water log value of (octanol/water) partition coefficient:not available

explosion upper limit (%, v/v): not available

explosion lower limit (%, v/v): not available

dissolve properties: soluble in water, acetone, ether and petroleum ether, miscible in benzene and carbon tetrachloride are insoluble in carbon disulfide.

toxicological data

2. toxicological data:

acute toxicity:not available .

ecological data

three , ecological data:

1 ,other harmful effects: the substances are harmful to the environment, and special attention should be paid to water pollution.

molecular structure data

1. molar refractive index: 23.18

2. molar volume (m³/mol):127.4

3. isotonic specific volume (90.2k):264.9

4. surface tension (dyne/cm):18.6

5, polarizability（10^-24cm³):9.19

compute chemical data

none

properties and stability

colorless oily liquid. it has an odor similar to butyric acid. sensitive to light. easy to absorb moisture. strongly acidic. it is miscible with water, acetone, diethyl ether and petroleum ether, soluble in benzene and carbon tetrachloride, and insoluble in carbon disulfide, mineral oil and heptane. relative density 1.651. freezing point -17.5℃. boiling point 120℃ (97.99kpa). refractive index 1.295. there is corrosion

storage method

seal with argon and store in a cool, dry place.

synthesis method

none

purpose

for biochemical research. protein sequence analysis, organic synthesis, ester catalysts. active agent. acidifier.

resource:allhdi.com</a