Astm D2074 — Pdf ((free))
An "amine value" refers to the number of milligrams of potassium hydroxide (KOH) equivalent to the amine basicity in one gram of the sample. Knowing the exact distribution of primary, secondary, and tertiary amines is crucial because it dictates how the chemical will perform in its final application. Key Applications of Fatty Amines
: Determined by titrating the sample with standard hydrochloric acid (HCl) using a color indicator (typically bromphenol blue). Primary, Secondary, and Tertiary Amine Values
Understanding ASTM D2074: The Comprehensive Guide to Amine Values in Fatty Amines
The standard establishes the statistical margins of error allowed between different operators in the same lab (repeatability) and different laboratories (reproducibility). How to Access the Official ASTM D2074 PDF
This is added to react selectively with primary amines, converting them into Schiff bases which are non-basic under the test conditions. Titrating the remaining solution yields the combined secondary and tertiary amine value. astm d2074 pdf
: The test determines the concentration of basic amino groups in fatty amines. These values are expressed as milligrams of potassium hydroxide (KOH) equivalent to the basicity of 1 gram of the sample [1, 2]. Methodology
The full document is available for purchase and download through official standards bodies like the ASTM International Website and authorized distributors such as iTeh Standards or Accuris Standards Store . Overview of ASTM D2074
Ensures exact stoichiometric ratios in downstream chemical reactions.
Yes. While D2896 is more common for new oils, it uses perchloric acid in glacial acetic acid—a hazardous combination. ASTM D2074 uses safer alcoholic HCl. Furthermore, for extremely dark, soot-laden used oils, D2074 often provides more repeatable results due to its specific solvent system and weaker acid strength, which better mimics real-world acid neutralization. An "amine value" refers to the number of
: Calculated from the amount of acid required to neutralize all basicity in 1 gram of the sample.
ASTM D2074 is a standard test method developed by ASTM International (formerly the American Society for Testing and Materials). Its official title is
: Unlike some other standards that use potentiometric titration, D2074 utilizes color-change indicators
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. : The test determines the concentration of basic
Using unauthorized, third-party scribbled notes or outdated forum text can lead to formulation errors, batch rejections, and costly industrial downtime.
Fatty amines serve as the foundational backbone for many cationic and amphoteric surfactants. Manufacturers must know the exact amine values to calculate precise stoichiometric ratios during chemical reactions, preventing unreacted materials from contaminating the final product. 2. Corrosion Inhibitors
While the "astm d2074 pdf" document contains the full detailed protocol, here is a simplified breakdown of the procedure: