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HomeProduct name listCyclobutanecarboxylic acid

Cyclobutanecarboxylic acid

  • CAS NO.:3721-95-7
  • Empirical Formula: C5H8O2
  • Molecular Weight: 100.12
  • MDL number: MFCD00001323
  • EINECS: 223-072-7
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-24 21:11:45
Cyclobutanecarboxylic acid Structural

What is Cyclobutanecarboxylic acid?

Chemical properties

CLEAR COLOURLESS TO SLIGHTLY AMBER LIQUID

The Uses of Cyclobutanecarboxylic acid

Cyclobutanecarboxylic acid is used in water treatment, row materials for sodium fluosilicate potassium fluosilicateammonium fluosilicatecopper fluosilicatebarium fluosilicate and other fluosilicates and silicic tetrafluoride. It is also used in refining lead of electrolysis, as mordant and in the treatment of metal surface.

Preparation

Cyclobutanecarboxylic acid synthesis: Put 1,1-Cyclobutanedicarboxylic acid into a distillation device for heating, decarboxylate at about 160°C to release carbon dioxide, then heat for distillation, collect 189-195°C fractions as crude product, and re-distill to obtain the finished product cyclobutanecarboxylic acid. Yield 86%-91%.

Synthesis Reference(s)

The Journal of Organic Chemistry, 22, p. 1680, 1957 DOI: 10.1021/jo01363a041

Purification Methods

Dissolve the acid in aqueous HCO 3 then acidify with HCl and extract it into Et2O, wash with H2O, dry (Na2SO4), concentrate to a small volume, then distil it through a glass helices packed column. The S-benzylisothiuronium salt has m 176o (from EtOH), the anilide has m 112.5-113o, and the p-toluide has m 123o. [Payne & Smith J Org Chem 22 1680 1957, Kantaro & Gunning J Am Chem Soc 73 480 1951, Stodola & Heisig Org Synth Coll Vol III 213 1955, Beilstein 9 H 5.]

Properties of Cyclobutanecarboxylic acid

Melting point: −7.5 °C(lit.)
Boiling point: 195 °C(lit.)
Density  1.047 g/mL at 25 °C(lit.)
refractive index  n20/D 1.444(lit.)
Flash point: 183 °F
storage temp.  Sealed in dry,Room Temperature
solubility  soluble in Chloroform, Methanol
pka pK1:4.785 (25°C)
form  Liquid
color  Clear colorless to yellow
Specific Gravity 1.047
Water Solubility  Slightly soluble in water.
BRN  1816777
CAS DataBase Reference 3721-95-7(CAS DataBase Reference)
NIST Chemistry Reference Cyclobutane carboxylic acid(3721-95-7)
EPA Substance Registry System Cyclobutanecarboxylic acid (3721-95-7)

Safety information for Cyclobutanecarboxylic acid

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
GHS Hazard Statements H314:Skin corrosion/irritation
Precautionary Statement Codes P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for Cyclobutanecarboxylic acid

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