Development of Azeotropic Blends to Replace TCE and nPB in Vapor Degreasing Operations

reportActive / Technical Report | Accession Number: AD1029431 | Open PDF

Abstract:

Azeotropic blends that have similar properties as trichloroethylene TCE and n-propyl bromide nPB but without undesirable environmental, occupational, safety, and health properties were tested as sustainable drop-in replacements for TCE and nPB in vapor phase cleaning operations. No fluids in this study cleaned grease or solder flux residue as well as TCE or nPB. Seven new azeotropic blends were discovered during this project. Four azeotropes failed the flash point test. One failed the vial-based screening test against marine-grade grease. Two of the azeotropic blends survived the flashpoint and solvency screening tests. They are designated AZ6 80 Suprion, 20 p-chlorobenzotrifluoride, Tb 11 deg C and AZ7 65 HFE-7500, 35 p-chlorobenzotrifluoride, Tb 125 deg C.

Author(s):
Williams, Darren L.
Author Organization(s):
Sam Houston State University Huntsville United States
Descriptive Note:
Technical Report,01 Sep 2014,01 Jan 2017
Pagination:
0370

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release;

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
SERDP
Contract/Grant Number(s):
W912HQ-14-C-0062
Project Number(s):
WP-2522
 Subject Terms
Joint Capability Areas:
JCA_7.2.1_Mitigate Lethal Effects; JCA_7.2_Mitigate; JCA_7_Protection; JCA_5_Command and Control; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_5.3_Planning; JCA_4.2_Supply; JCA_4.2.2_Inventory Management; JCA_5.5_Direct; JCA_5.5.1_Communicate Intent and Guidance; JCA_4.6_Engineering; JCA_4.1_Deployment and Distribution; JCA_4.6.1_General Engineering; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_5.3.3_Develop Strategy; JCA_JCA_4.1.2_Sustain the Force; JCA_5.2.2_Develop Knowledge and Situational Awareness; JCA_5.2_Understand; JCA_4_Logistics
Modernization Areas:
Microelectronics
Communities of Interest:
Biomedical
Descriptor(s):
chemical products, RAMAN SPECTROSCOPY, vapors, AZEOTROPES, SOLVENTS, CLEANING
Field(s)/Group(s):
Physical Chemistry
Keyword(s):
Vapor Degreasing, Solvent Blending, Formulation, Azeotropy, Azeotropic Blend, Low Boiling Azeotrope, Defluxing, Precision Cleaning, Ball drop Viscometry
Report Date:
2016 Dec 21
Creation Date:
2017 Oct 10