abid n. merchant dupont wilmington, de · 1,2 trans-dce stabilizer hfc-43-10 boiling point...
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OZONE FRIENDLY REPLACEMENTS FOR CFC-113 AND METHYLCHLOROFORM
Abid N. Merchant DuPont
Wilmington, DE 19805 T-302199914269 F-302=999-5340
Topics Background HFC-43-10 (Vertrel@-XF)
- Properties
= Applications HFC-43-1 O/ 1,2 trans-DCE (Vertrelo-MCA)
= Properties
- Applications
= Properties
= A p pl ica t i ons
Path Forward
0 HFC=43-10/1,2 trans-DCE/ Methanol (Vertrei@-SMT)
HFC-43-10 mee Nomenclature
VertrelB XF
1,l ,I ,2,3,4,4,5,5,5 Decafluoropentane
F F F F F
I I I I I I I 1 1 . 1
F-C-C-C-C-C-F
F H H F F
HFC-43-10
H C1
€3-C-C-Cl
H C1
I I I I
Methyl chloroform
Regulatory Update
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PMN For HFC-43-10 Approved By EPA On May 31,7995
i
Commercial Production Of HFC-43-10 Has Started
VOC Exemption Has Been Filed With EPA
Foreign TSCA Listing Underway
Key Properties Of 43-10 mee
Boiling Point Flammability Heat Transfer Properties Thermal Stability Material Compatibility Azeotropes ODP GWP ALC AEL voc
Excellent No Dec. o 3OOOC
Excellent Yes zero
10,000 PPM 200 PPM Exemption Filed
Successful Applications Of HFC-43-10 mee
Carrier Fluid . ..
Rinsing Agent In Co-Solvent Process
- Defluxing
- Degreasing
- Precision Cleaning
Particle Removal
Displacement Drying
Film Cleaning
0
0
0
0
0
0
0
0
Why HFC-43-10 Is Superior.To PFC In Co-solvent Process
Removal of Soil and Solvating Agent by Dissolution Rather Than Displacement
Elevation of Boil Sump Temperature Enhances Cleaning
Improved Rinsing Due to Reduce Solvationg Agent in Vapor
Reduce Losses of Rinsing Agent (1 5-30%) More Energy Efficient Process (No Special Mixing Requirement For Boil Sump & Low Turn-over)
Could Reduce Equipment Costs
Greater Soil Loading Capacity
Wider Soil Cleaning Latitude
Agent I 9 in HFC-43-IO & PFC-5060
Weight Percent Agent 19
, DuPont, AN
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Particulate Removal Tests Number of Tests:
Equipment:
Two Locations
Modified BBI Vapor Degreaser Flow System
Fluid: Neat 43-10 mee And Co-Solvent
Tests:
Results:
Internal Guidence Components Vacion Pump Neat 43-10 Worked Well
HFC-43-10 With Petroferm 18,19, & 24 Co-Solvent Tests Worked Better Than PFC
Displacement Drying Parts = Metal Lids, Glass Beads, Ceramic Chips Solvent = 43-10 with 0.4% HSC4000 Surfactant
YO Water Removed Parts Agitation FREON TDFC _ _ _ - ~ 4340
Metal Lid No I00 95 Yes I00 100
Glass Bead No I00 I00
Ceramic Chips No 99 Yes 100
80 >99
VertrelB Products .
Vertrela XF Neat HFC=43=lO . > , - " 3
VertrelB XM 43-1 01 Methanol
VertrelQ XE 43-1 01 Ethanol
VertrelQ MCA 43-101 1,2 DCE
VertrelB SMT 43-101 1,2 DCE/ Methanol
I 2 Trans-Dichloroethylene Formula:
Boiling Point
Flashpoint
ODP
GWP
AEL
Cleaning Properties
c1 H \ /
\ c1 /c=c H
48°C (118°F)
Yes
Zero
Near Zero ,,
200 PPM (ACGIH)
Excellent
Key Properties of VertrelQ MCA Azeotrope Composition
1,2 trans-DCE Stabilizer
HFC-43-10
Boiling Point Flammability Thermal Stability Heat Transfer Properties Material Compatibility ODP GWP AEL Cleaning Prperties (Surface Tension/ Viscosity) Oxygen Compatibility
WT% 61.7 37.8 0.5 39 C (102 F) None Exceilen t Excellent Good Zero Low (0.155) 200 PPM Excel ien t
Yes
OXYGEN IMPACT TEST RESULTS FOR HF'C=43=1O/DCE SOLUTIONS
PROCEDURE - NHB 8060.1, TEST 13 EQUIPMENT - LOX AT AN IMPACT ENERGY OF 10 KG-M
MATERIAL
WT%
HFC-43- 1 ODCE (9011 0)
I
HFC-43 - 1 O/DCE (80120)
HFC-43-1 O.DCE (6213 8)
OXYGEN SAMPLE IMPACT CONDITION THICKNESS ENERGY RESULTS
PRESSURE TEMP (PSI) ("F) (KG-M)
0/20 14.7 LOX 0.50 0
14.7 . LOX
14.7 LOX
.05
.05
10 0/20
10 0/20
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Material Compatibility for VertrelB MCA and Vertrel SMT
Metals (2 weeks @ 120 C in sealed tube)
Aluminum Compatible Steel Compatible Copper Compatible
Plastics ( I week@ 55 C in sealed tube) All Compatible Polyethylene HD Polyethylene
Nylon Phenolic Polyester, PET & PBT Teflon TFE, FEP, PFA Acetal Polyamides
Polypropylene EPOXY
Material Compatibility for VertrelB MCA and Vertrel SMT (Continued) -.
Elastomers (1 week @ 55 C in a sealed tube) All Compatible
Polysulfide EPDM (Norde Chlorosulfonated PE Butyl Rubber Buna S * Natural Rubber *
* (Swelling But With Low Extractables)
P
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Successful Applications for VertrelB MCA (43-10 mee/ 1,2 trans DCE)
Precision Cleaning
Oxygen System Cleaning
Carrier FI u id
General Metal Cleaning
Optical System Cleaning
Successful Applications for VertrelB SMT (43-101 1,2 trans DCEI Methanol)
Def I uxing
Precision Cleaning - Prior to Conformal Coating
- Machined Parts
= Hard To Clean Soils Hand Soldered Cleaning
Optical System Cleaning
PC Board Cleaning Azeotrope - 43-1 0/1,2 trans DCE/MeOH Board = 3D Boards/l585 'RMA Flux
12
10 I
8
Contamination 6 pg/ln* Ionic
4
2
0
43-1 0/1,2 t rans/MeOH m 0 F-113/MeOH
3000
2000 pg/Board
Residual Rosin
1000
0
6
5
4
E V
5 3 0 II :1
2
1
0
Defluxing Test 'I'cst Ilarri-cts - Wavc soltlcrcrl with I.Iollis 225 Oil F h I X - IIMA 185 Kester 'I'csl Ilqiiipiiiciit - f l f ~ l Motlifictl M;icliilic
- 2 iiiiii. h i 1 / I i i i i i i . Rinsc / I iiiiii V;qioI
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Vertrcl SMT A 24/ Vertrcl XF 225/ Ellintlol
White Residue - Vetrel SMT < A. 241 Vert. XF < AK 2251 Ethanol
DuPonl, Ab
Precision Cleaning Solvent A VertrelB MCA
B VertrelB SMT Parts - Nuts, Bolts Cycle - CleanlRinse (1 minute each)
Oils
Oak
Sultek
Cutzoil
Texaco
Sunn icut
YO Oil Removed A B
100 100
100 100
100 100
100
>90
1.00
100
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Vertrel SMT Tests For Precision Cleaning And Defluxing
= Aerospace Company = Equipment: BBI-MLR-120
Tests Cleaning of Thin Metal Foils Prior To Welding
- Folis Cleaned And Welded - Leak Tested With Helium Checker - Leak Tests - Acceptable
Cleaning Prior to Conformal Coating - Parts Vapor/Rinse Cleaned - Parylene-C Coating 30,000 A" - Adhesion Tests - Acceptable
Vertrel SMT Tests For Precision Cleaning And Defluxing (Continued)
Tests Cleaning For Glass To Metal Sealing
= Metal RingdSteel Tube/Glass Cane Vapor/Rinse Cleaned = High Temperature Melting In A Furnace - “Pull Tests” - Acceptable
Hand Soldered Parts In Vapor Only - Hand Soldered Insulating Terminals Vapor/ Rinse Cleaned - Insulation Resistance Tests - Acceptable
Cleaning Of Printed Circuit Boards - IPC-36 Boards/ Wave Soldered = Excellent lonics and SIR Results = Ionic <l Yglsq. in.; SIR 3.2 x 109 ohms
Existing Vapor Degreaser
Retrofit for Better Containment
New Triple Guard Machine
Emission And Solvent Loss Measurement
BBl-MSR-I20 Both Machines Modified by Ultronix For 2:i BBI-MSR-250-R Freeboard Ratio And A -2OOC Secondary Coil
HFC-43-10 Emission Measured By Miran-B IR Analyzer
Degreaser Condition Emission In PPM Idle 2 -5PPM Cleaning 2 = I O PPM Spray Cleaning I O = 30 PPM
Solvent Loss in BBl-MSR-120 For HFC-43-10
2 Week Test = 1 Gallon/ 15 Days - e 1 Lb/Day
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Path Forward (Continued)
+ For Literature (Bulletins, MSDS) Or Any General Information Contact DuPont’s 800 Number For Customer Service:
1=800=441=9281
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