Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Aromatic Compounds: Overview01:25

Aromatic Compounds: Overview

11.8K
In general, the term ‘aromatic’ indicates a pleasant smell or fragrance from fresh flowers, freshly prepared coffee, etc. In the early history of organic chemistry, many benzene derivatives were isolated from the pleasant odor oils of the plants. For example, vanillin was isolated from the oil of vanilla, methyl salicylate from the oil of wintergreen, and cinnamaldehyde from the oil of cinnamon. They all had a pleasant odor; hence the name aromatic was given.
In 1825, Faraday...
11.8K
Integrals of Powers of Secant and Tangent01:18

Integrals of Powers of Secant and Tangent

217
Integrals involving powers of tangent and secant are commonly evaluated using substitution, with the strategy determined by the parity of the exponents. The method relies on pairing part of the integrand with the derivative of a suitable trigonometric function and rewriting the remaining factors using trigonometric identities.When the power of secant is even, tangent is chosen as the substitution variable. Since the derivative of tangent is secant squared, a factor of sec⁡2x can be...
217
Acid-Base Titration Curves02:23

Acid-Base Titration Curves

122.1K
A titration curve is a plot of some solution property versus the amount of added titrant. For acid-base titrations, solution pH is a useful property to monitor because it varies predictably with the solution composition and, therefore, may be used to monitor the titration’s progress and detect its endpoint. Acid-base titration can be performed with a strong acid and a strong base, a strong acid and a weak base, or a strong base and a weak acid.
For a titration carried out for 25.00 mL of...
122.1K
Solution Composition During Acid/Base Titrations01:17

Solution Composition During Acid/Base Titrations

2.0K
The titration of a weak acid with a strong base results in the formation of water and the conjugate base of the acid. For instance, titrating acetic acid with sodium hydroxide leads to the formation of water and sodium acetate. A solution of acetic acid and sodium acetate constitutes a buffer whose relative concentration at different stages of the titration is indicated by the α values, which represent percentages of the weak acid and its conjugate base.
The α0 and α1 values...
2.0K
Combining Functions01:16

Combining Functions

357
Functions can be combined to form new mathematical models that describe interactions between variables. These combinations are fundamental in understanding relationships between changing quantities and are commonly encountered in scientific and engineering contexts. The combination methods—addition, subtraction, multiplication, division, and composition—each have unique implications for the resulting function’s domain and behavior.When combining functions through arithmetic...
357
Molecular Compounds: Formulas and Nomenclature03:10

Molecular Compounds: Formulas and Nomenclature

45.8K
Molecular compounds or covalent compounds result when atoms share electrons to form covalent bonds. Since there is no electron transfer, molecular compounds do not contain ions; instead, they consist of discrete, neutral molecules. 
45.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Prescription - Dermatology and Wound Care.

International journal of pharmaceutical compounding·2024
Same author

Prescription: Technology in Compounding.

International journal of pharmaceutical compounding·2024
Same author

Pharmaceutical Waters Used in Sterile and Nonsterile Compounding.

International journal of pharmaceutical compounding·2024
Same author

Quality Control: Water Activity Considerations for Beyond-use Dates.

International journal of pharmaceutical compounding·2024
Same author

Prescription: Pediatric/Geriatric.

International journal of pharmaceutical compounding·2024
Same author

Basics of Compounding: Tips and Hints, Part 4: Lollipops/Lozenges, Gummy Bears, Patches, Flavoring/Coloring, Sweeteners, and Packaging.

International journal of pharmaceutical compounding·2024

Related Experiment Video

Updated: May 3, 2026

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron
07:56

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron

Published on: August 12, 2019

7.2K

Basics of compounding with tars.

Loyd V Allen1

  • 1International Journal of Pharmaceutical Compounding, Edmond, OK 73034, USA. lallen@ijpc.com

International Journal of Pharmaceutical Compounding
|January 28, 2014
PubMed
Summary
This summary is machine-generated.

Tar, derived from coal and wood via destructive distillation, has historical uses including sealing and medical applications. This article details the medical uses, characteristics, and compounding of coal tar, juniper tar, and pine tar.

More Related Videos

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions
06:56

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Published on: October 10, 2013

39.1K
Author Spotlight: Porphyrin-Modified Beads for Use as Compensation Controls in Flow Cytometry
10:06

Author Spotlight: Porphyrin-Modified Beads for Use as Compensation Controls in Flow Cytometry

Published on: March 24, 2023

3.0K

Related Experiment Videos

Last Updated: May 3, 2026

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron
07:56

Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron

Published on: August 12, 2019

7.2K
Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions
06:56

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Published on: October 10, 2013

39.1K
Author Spotlight: Porphyrin-Modified Beads for Use as Compensation Controls in Flow Cytometry
10:06

Author Spotlight: Porphyrin-Modified Beads for Use as Compensation Controls in Flow Cytometry

Published on: March 24, 2023

3.0K

Area of Science:

  • Medicinal Chemistry
  • Organic Chemistry
  • Materials Science

Background:

  • Tar has a long history of diverse applications, including construction and medicine.
  • Commonly, tars are produced through the destructive distillation of coal and wood.

Purpose of the Study:

  • To explore the historical and medical uses of various tars.
  • To present the characteristics, commercial products, and compounding formulas for specific tars.

Main Methods:

  • Review of historical and scientific literature on tar.
  • Analysis of the properties and applications of coal tar, juniper tar, and pine tar.

Main Results:

  • Detailed description of the medical applications of coal tar, juniper tar, and pine tar.
  • Inclusion of commercial products and compounding formulas for medicinal use.

Conclusions:

  • Tars, particularly coal, juniper, and pine tar, possess significant historical and current medical relevance.
  • Understanding tar characteristics and compounding techniques is crucial for their medicinal application.