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Rippey Microclean Symmetry
Chemical Compatibility
Although ITW Rippey PVA is compatible with a wide range of
solutions, care must be taken with specific chemicals and concentrations.
Polymers, such as PVA, can be adversely effected by
the chemical environment in several ways. Crosslinks
can be broken or formed, main-chain bonds can be broken and elasticity of the
polymer can increase or decrease in response to the chemical solution. All of
these effects can be manifested in changes in the physical properties of the
material. During our Chemical compatibility testing we look at the following
physical properties: swelling of the polymer, maximum stress at break,
extension at break and young's modulus (initial stress over strain).
Control Samples In DI Water
Test method: Test
piece is soaked in each chemical for 24 hours at 23°C.
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Chemistry
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Average Swelling (%)
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Maximum Stress (KPa)
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Extension at Break (%)
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Young's Modules (KPa)
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Physical Change/Effect
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Typical Rippey Symmetry PVA
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0.00%
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323.7
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311.0
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121.2
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average on control samples
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Bases
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3% Sodium Hydroxide
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-4.70%
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402.3
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235.8
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196.1
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slightly stiff/yellow/shrunk
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10% Ammonium Hydroxide
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0.88%
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322.5
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303.4
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120.5
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normal
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3% Potassium Hydroxide
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-3.00%
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409.1
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272.0
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176.1
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slightly yellow/shrunk
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Acids
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3% Acetic Acid
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1.00%
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277.3
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340.1
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93.6
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normal
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10% Citric Acid
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0.71%
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289.9
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336.1
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99.8
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normal
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1g Dehydroacetic Acid (Na Salt)
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1.91%
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281.6
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292.6
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106.1
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yellowish
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5% Hydrochloric Acid
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4.27%
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250.5
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396.2
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72.2
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normal
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5% Sulfuric Acid
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0.27%
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323.0
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271.4
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139.9
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shrunk
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5% Hydrofluoric Acid
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0.14%
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365.2
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357.5
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125.9
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normal
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5% Phosphoric Acid
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0.58%
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316.7
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327.0
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111.7
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normal
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5% Nitric Acid
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11.73%
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176.7
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636.5
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37.8
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soft & limp
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Oxidizers
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3% Hydrogen Peroxide
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0.72%
|
286.2
|
268.8
|
119.1
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normal
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5% Hydrogen Peroxide
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0.43%
|
281.6
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310.9
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103.5
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normal
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10% Hydrogen Peroxide
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1.57%
|
260.0
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421.2
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69.9
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slightly soft/limp
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Ozone 0.03ppm
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0.00%
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238.7
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273.2
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106.4
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normal
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Commercial Cleaning Solutions
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Oakite
TCL300 2%
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0.00%
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359.0
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299.8
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133.8
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faint yellow/foamed
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Oakite
TCL300 5%
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0.00%
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308.0
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282.6
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121.9
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normal
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NuGenTec NuWest DT58 1:5
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-0.29%
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352.4
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313.5
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126.7
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normal
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Organics
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100% Methanol
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1.71%
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322.6
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313.3
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130.8
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normal
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50% Ethanol
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16.06%
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158.1
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408.9
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49.6
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very soft
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5% Isopropanol
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0.00%
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308.6
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318.5
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112.7
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normal
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1:1 MeOH:Acitone
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5.59%
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345.0
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307.7
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142.3
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very cold to the touch
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2:1 MeOH:Acitone: Hexane
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8.97%
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242.5
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357.5
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82.1
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cold/slightly slimy
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1:1 Acitone: Hexane
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12.75%
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191.9
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386.4
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58.9
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slimy feel/stretches
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1:3 Acitone: Hexane
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8.26%
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218.9
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387.8
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69.1
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cold to the touch/stretches
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20% Acetone
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3.62%
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278.8
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310.7
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108.2
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normal
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100% Hexane
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0.00%
|
315.2
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210.1
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172.2
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dry/breaks quickly
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Copper Cleaning Solutions
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EKC Microplanar PCMP5000 1:15
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1.01%
|
337.3
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290.9
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129.8
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normal
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Silicon Valley Chemlabs CMC475 1:10
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0.00%
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334.4
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298.4
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128.2
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normal
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ST250 ASC1 1:10
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-1.30%
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388.5
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259.7
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167.9
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normal
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ST250 ASC1 1:20
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-1.43%
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388.0
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302.7
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143.5
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normal
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OnTrak
2500 (point of use)
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0.00%
|
324.1
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310.3
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118.2
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normal
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OnTrak
3000 (point of use)
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072%
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390.3
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293.8
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156.1
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normal
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Intersurface
Dynamics AP/C 4%
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0.00%
|
332.4
|
298.4
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123.8
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normal
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Kanto CMP-M01 30:1
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0.00%
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387.0
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269.6
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162.2
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normal
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Kanto CMP-M02 10%
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1.01%
|
249.31
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420.97
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67.50
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normal
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Kanto CMP-M03 20%
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1.16%
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254.46
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425.72
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67.36
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normal
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CP-80-5%
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1.70%
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260.62
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339.6
|
89.98
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normal
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CP-80-20%
|
2.00%
|
229.34
|
323.55
|
82.51
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normal
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CP-70-5%
|
2.20%
|
236.68
|
341.5
|
81.02
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normal
|
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CP-70-20%
|
3.00%
|
233.34
|
326.62
|
82.98
|
normal
|
|
CP-60-5%
|
0.00%
|
257.55
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313.65
|
95.49
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normal
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CP-60-25%
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1.80%
|
259.69
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344.74
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88.56
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normal
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Others
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SC1 Solution
|
0.00%
|
310.0
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328.2
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102.3
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normal
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SC2 Solution
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4.41%
|
198.1
|
378.8
|
63.3
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slightly soft
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%5 Nickel Sulfate
|
-2.14%
|
361.2
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285.5
|
145.0
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slightly stiff/shrunk
|
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