Methods of analysis of fats and fatty oils. Physical methods. Determination of litre weight in air

1976 ◽  
Keyword(s):  
Physical Methods ◽  
Methods Of Analysis

Physical Methods of Analysis of Synthetic and Natural Rubber

1944 ◽  
Vol 17 (2) ◽  
pp. 253-266 ◽  
Author(s):  
R. Bowling Barnes ◽  
Van Zandt Williams ◽  
A. R. Davis ◽  
Paul Giesecke
Keyword(s):  
Carbon Black ◽  
Phosphorus Content ◽  
Simple Procedure ◽  
Spectroscopic Methods ◽  
Physical Methods ◽  
Synthetic Rubber ◽  
Methods Of Analysis ◽  
Comparative Results ◽  
Rubber Stock

Abstract In a compounded rubber stock, the ratio of natural to synthetic rubber can be estimated approximately from a knowledge of the phosphorus content of the rubber hydrocarbon. A considerably more exact analysis can be carried out by infrared spectroscopic methods, which permit a determination of the type as well as the amount of rubber present. Complete details and comparative results of these two methods of analysis are given, as well as a simple procedure for separating the rubber hydrocarbon of a rubber stock from carbon black and other compounding ingredients.

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