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Encyclopedia > Acetic acid (data page)


This page provides supplementary chemical data on acetic acid. Flash point 43 Â°C R-phrases , S-phrases , , , US Permissible exposure limit (PEL) 10 ppm Supplementary data page Structure & properties n, εr, etc. ...

Contents


Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions. A material safety data sheet or MSDS is a form containing data regarding the properties of a particular substance. ...


Structure and properties

Structure and properties
Index of refraction, nD 1.3716
Dielectric constant, εr  ? ε0 at ? °C
Dielectric constant, ε 6.19 C2/(N·m2) at 25 °C
Bond strength  ?
Bond length  ?
Bond angle  ?
Magnetic susceptibility  ?

The refractive index of a material is the factor by which electromagnetic radiation is slowed down (relative to vacuum) when it travels inside the material. ... The dielectric constant εr (represented as or K in some cases) is defined as the ratio: where εs is the static permittivity of the material in question, and ε0 is the vacuum permittivity. ... The dielectric constant εr (represented as or K in some cases) is defined as the ratio: where εs is the static permittivity of the material in question, and ε0 is the vacuum permittivity. ... In chemistry, bond strength is measured between two atoms joined in a chemical bond. ... Geometry of the water molecule Molecules have fixed equilibrium geometries--bond lengths and angles--that are dictated by the laws of quantum mechanics. ... Geometry of the water molecule Molecules have fixed equilibrium geometries--bond lengths and angles--that are dictated by the laws of quantum mechanics. ... In electrical engineering, the magnetic susceptibility is the degree of magnetization of a material in response to a magnetic field. ...

Thermodynamic properties

Phase behavior
Triple point 289.8 K (16.7 °C), ? Pa
Critical point 593 K (320 °C), 57.8 bar
Std enthalpy change
of fusionΔfusHo		 +11.7 kJ/mol
Std entropy change
of fusionΔfusSo		 40.5 J/(mol·K)
Std enthalpy change
of vaporizationΔvapHo		 +23.7 kJ/mol
Std entropy change
of vaporizationΔvapSo		  ? J/(mol·K)
Solid properties
Std enthalpy change
of formation ΔfHosolid		  ? kJ/mol
Standard molar entropy
Sosolid		  ? J/(mol K)
Heat capacity cp  ? J/(mol K)
Liquid properties
Std enthalpy change
of formation ΔfHoliquid		 −483.5 kJ/mol
Standard molar entropy
Soliquid		 158.0 J/(mol K)
Heat capacity cp 123.1 J/(mol K)
Gas properties
Std enthalpy change
of formation ΔfHogas		  ? kJ/mol
Standard molar entropy
Sogas		 282.8 J/(mol K)
Heat capacity cp 63.4 J/(mol K)

In physics, the triple point of a substance is the temperature and pressure at which three phases (gas, liquid, and solid) of that substance may coexist in thermodynamic equilibrium. ... Chemistry In chemistry, a critical point is the conditions ( temperature, pressure) at which the liquid state of the matter ceases to exist. ... Heat of fusion is the amount of heat energy which must be absorbed or lost for 1 gram of a substance to change states from a solid to a liquid or vice versa. ... The standard entropy change of fusion is the increase in entropy when melting a substance. ... The standard enthalpy change of vaporization is a physical property of substances. ... The standard entropy change of vaporization is the increase in entropy when vaporizing a substance. ... The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 1 Atmosphere... In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... Heat capacity is a measure of the ability of a body to store heat. ... The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 1 Atmosphere... In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... Heat capacity is a measure of the ability of a body to store heat. ... The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states (the most stable form of the element at 1 Atmosphere... In chemistry, the standard molar entropy is the entropy content of one mole of substance, under conditions of standard temperature and pressure. ... Heat capacity is a measure of the ability of a body to store heat. ...

Spectral data

UV-Vis
λmax  ? nm
Extinction coefficient, ε  ?
IR
Major absorption bands  ? cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments		  

Ultraviolet-Visible Spectroscopy or Ultraviolet-Visible Spectrophotometry (UV/ VIS) involves the spectroscopy of photons (spectrophotometry). ... Ultraviolet-Visible Spectroscopy or Ultraviolet-Visible Spectrophotometry (UV/ VIS) involves the spectroscopy of photons (spectrophotometry). ... A nanometre (American spelling: nanometer, symbol: nm) is 1. ... The parameter used to describe the interaction of electromagnetic radiation with matter is the complex index of refraction, ñ, which is a combination of a real part and an imaginary part. ... Image of a small dog taken in mid-infrared (thermal) light (false color) Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation. ... The metre, or meter (symbol: m) is the SI base unit of length. ... Nuclear Magnetic Resonance Spectroscopy is the name given to the technique which exploits the magnetic properties of nuclei. ... Mass spectrometry is a technique for separating ions by their mass-to-charge (m/z) ratios. ...

References

Except where noted otherwise, data relate to standard ambient temperature and pressure. Temperature and air pressure can vary from one place to another on the Earth, and can also vary in the same place with time. ...


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  Results from FactBites:
 
Acetic acid - Suggest to a friend of WIKI (2731 words)
acid is corrosive, and its vapour is irritating to eyes and nose, although it is a
Glacial acetic acid is used in analytical chemistry for the estimation of weakly alkaline substances such as organic amides.
Concentrated acetic acid is corrosive and must therefore be handled with appropriate care, since it can cause skin burns, permanent eye damage, and irritation to the mucous membranes.
Acetic acid - Wikipedia, the free encyclopedia (3832 words)
Acetic acid is corrosive, and its vapour is irritating to eyes and nose, although it is a weak acid based on its ability to dissociate in aqueous solutions.
Acetic acid is one of the simplest carboxylic acids.
Acetic acid is also a component of the vaginal lubrication of humans and other primates, where it appears to serve as a mild antibacterial agent.
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