Related Experiment Video

Updated: May 29, 2025

Experimental Protocol for Biodiesel Production with Isolation of Alkenones as Coproducts from Commercial Isochrysis Algal Biomass
09:10

Experimental Protocol for Biodiesel Production with Isolation of Alkenones as Coproducts from Commercial Isochrysis Algal Biomass

Published on: June 24, 2016

20.6K

Re-evaluation of butane (E 943a), isobutane (E 943b) and propane (E 944) as food additives

, Laurence Castle, Monica Andreassen

    EFSA Journal. European Food Safety Authority
    |February 3, 2025
    PubMed

    Keywords:
    1,3‐butadiene106‐97‐874‐98‐675‐28‐5butanefood additivesisobutanepropane

    More Related Videos

    High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy08:55

    High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

    Published on: October 9, 2020

    5.5K
    Composition and Properties of Aquafaba: Water Recovered from Commercially Canned Chickpeas10:35

    Composition and Properties of Aquafaba: Water Recovered from Commercially Canned Chickpeas

    Published on: February 10, 2018

    33.4K

    Related Concept Videos

    Conformations of Butane02:20

    Conformations of Butane

    Unlike ethane and propane that have only two major conformations, butane has more than two conformers. The staggered form of butane in which the bulky methyl groups on the two carbons are placed on opposite sides, that is, at a dihedral angle of 180°, is the lowest energy, most stable form — called the anti conformer. This conformation is stabilized due to the absence of steric repulsion between the largely spaced out methyl groups. The other two staggered conformations are...
    13.9K
    Conformations of Ethane and Propane02:18

    Conformations of Ethane and Propane

    In an organic molecule, free rotation about the carbon-carbon single bond results in energetically different conformers of the molecule. Due to this rotation, called the internal rotation, ethane has two major conformations — staggered and eclipsed.
    Staggered conformation is a low energy and more stable conformation with the C-H bonds on the front carbon placed at 60°dihedral angles relative to the C-H bonds on the back carbon, leading to a reduced torsional strain. In staggered...
    13.7K
    Constitutional Isomers of Alkanes02:18

    Constitutional Isomers of Alkanes

    Organic compounds of the same molecular formula can have different structural formulas called constitutional isomers, and the phenomenon is known as constitutional isomerism. Alkanes with four or more carbons showing multiple structures with the same molecular formula thereby exhibit constitutional isomerism.
    The linear isomer of an alkane is prefixed by the term “n”; hence a linear isomer of pentane is known as n-pentane. Based on the type of branching, some of the...
    17.6K
    Physical Properties of Ethers02:17

    Physical Properties of Ethers

    Overview
    An ether molecule has a net dipole moment due to the polarity of C–O bonds. Subsequently, boiling points of ethers are lower than those of alcohols of comparable molecular weight and slightly higher than those of hydrocarbons of comparable molecular weight (Table 1).
    Ethers can act as hydrogen bond acceptors, making them more water-soluble than hydrocarbons, but since ethers cannot act as hydrogen bond donors, they are much less soluble in water than alcohols. Ethers are considered...
    6.8K
    Molecular Comparison of Gases, Liquids, and Solids02:26

    Molecular Comparison of Gases, Liquids, and Solids

    Particles in a solid are tightly packed together (fixed shape) and often arranged in a regular pattern; in a liquid, they are close together with no regular arrangement (no fixed shape); in a gas, they are far apart with no regular arrangement (no fixed shape). Particles in a solid vibrate about fixed positions (cannot flow) and do not generally move in relation to one another; in a liquid, they move past each other (can flow) but remain in essentially constant contact; in a gas, they move...
    40.4K
    Combustion Energy: A Measure of Stability in Alkanes and Cycloalkanes02:14

    Combustion Energy: A Measure of Stability in Alkanes and Cycloalkanes

    The low reactivity in alkanes can be attributed to the non-polar nature of C–C and C–H σ bonds. Alkanes, therefore, were  initially termed as “paraffins,” derived from the Latin words: parum, meaning “too little,” and affinis, meaning “affinity.”
    Alkanes undergo combustion in the presence of excess oxygen and high-temperature conditions to give carbon dioxide and water. A combustion reaction is the energy source in natural gas, liquified...
    6.2K