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.
| Chemistry | Average Swelling (%) | Maximum Stress (KPa) | Extension at Break (%) | Young's Modules (KPa) | Physical Change/Effect |
| Typical Rippey Symmetry PVA | 0.00% | 323.7 | 311.0 | 121.2 | average on control samples |
Bases
| 3% Sodium Hydroxide | -4.70% | 402.3 | 235.8 | 196.1 | slightly stiff/yellow/shrunk |
| 10% Ammonium Hydroxide | 0.88% | 322.5 | 303.4 | 120.5 | normal |
| 3% Potassium Hydroxide | -3.00% | 409.1 | 272.0 | 176.1 | slightly yellow/shrunk |
Acids
| 3% Acetic Acid | 1.00% | 277.3 | 340.1 | 93.6 | normal |
| 10% Citric Acid | 0.71% | 289.9 | 336.1 | 99.8 | normal |
| 1g Dehydroacetic Acid (Na Salt) | 1.91% | 281.6 | 292.6 | 106.1 | yellowish |
| 5% Hydrochloric Acid | 4.27% | 250.5 |
396.2 | 72.2 | normal |
| 5% Sulfuric Acid | 0.27% | 323.0 | 271.4 | 139.9 | shrunk |
| 5% Hydrofluoric Acid | 0.14% | 365.2 | 357.5 | 125.9 | normal |
| 5% Phosphoric Acid | 0.58% | 316.7 | 327.0 | 111.7 | normal |
| 5% Nitric Acid | 11.73% | 176.7 | 636.5 | 37.8 | soft & limp |
Oxidizers
| 3% Hydrogen Peroxide | 0.72% | 286.2 | 268.8 | 119.1 | normal |
| 5% Hydrogen Peroxide | 0.43% | 281.6 | 310.9 | 103.5 | normal |
| 10% Hydrogen Peroxide | 1.57% | 260.0 | 421.2 | 69.9 | slightly soft/limp |
| Ozone 0.03ppm | 0.00% | 238.7 | 273.2 | 106.4 | normal |
Commercial Cleaning Solutions
| Oakite TCL300 2% | 0.00% | 359.0 | 299.8 | 133.8 | faint yellow/foamed |
| Oakite TCL300 5% | 0.00% | 308.0 | 282.6 | 121.9 | normal |
| NuGenTec NuWest DT58 1:5 | -0.29% | 352.4 | 313.5 | 126.7 | normal |
Organics
| 100% Methanol | 1.71% | 322.6 | 313.3 | 130.8 | normal |
| 50% Ethanol | 16.06% | 158.1 | 408.9 | 49.6 | very soft |
| 5% Isopropanol | 0.00% | 308.6 | 318.5 | 112.7 | normal |
| 1:1 MeOH:Acitone | 5.59% | 345.0 | 307.7 | 142.3 | very cold to the touch |
| 2:1 MeOH:Acitone: Hexane | 8.97% | 242.5 | 357.5 | 82.1 | cold/slightly slimy |
| 1:1 Acitone: Hexane | 12.75% | 191.9 | 386.4 | 58.9 | slimy feel/stretches |
| 1:3 Acitone: Hexane | 8.26% | 218.9 | 387.8 | 69.1 | cold to the touch/stretches |
| 20% Acetone | 3.62% | 278.8 | 310.7 | 108.2 | normal |
| 100% Hexane | 0.00% | 315.2 | 210.1 | 172.2 | dry/breaks quickly |
Copper Cleaning Solutions
| EKC Microplanar PCMP5000 1:15 | 1.01% | 337.3 | 290.9 | 129.8 | normal |
| Silicon Valley Chemlabs CMC475 1:10 | 0.00% | 334.4 | 298.4 | 128.2 | normal |
| ST250 ASC1 1:10 | -1.30% | 388.5 | 259.7 | 167.9 | normal |
| ST250 ASC1 1:20 | -1.43% | 388.0 | 302.7 | 143.5 | normal |
| OnTrak 2500 (point of use) | 0.00% | 324.1 | 310.3 | 118.2 | normal |
| OnTrak 3000 (point of use) | 072% | 390.3 | 293.8 | 156.1 | normal |
| Intersurface Dynamics AP/C 4% | 0.00% | 332.4 | 298.4 | 123.8 | normal |
| Kanto CMP-M01 30:1 | 0.00% | 387.0 | 269.6 | 162.2 | normal |
| Kanto CMP-M02 10% | 1.01% | 249.31 | 420.97 | 67.50 | normal |
| Kanto CMP-M03 20% | 1.16% | 254.46 | 425.72 | 67.36 | normal |
| CP-80-5% | 1.70% | 260.62 | 339.6 | 89.98 | normal |
| CP-80-20% | 2.00% | 229.34 | 323.55 | 82.51 | normal |
| CP-70-5% | 2.20% | 236.68 | 341.5 | 81.02 | normal |
| CP-70-20% | 3.00% | 233.34 | 326.62 | 82.98 | normal |
| CP-60-5% | 0.00% | 257.55 | 313.65 | 95.49 | normal |
| CP-60-25% | 1.80% | 259.69 | 344.74 | 88.56 | normal |
Others
| SC1 Solution | 0.00% | 310.0 | 328.2 | 102.3 | normal |
| SC2 Solution | 4.41% | 198.1 | 378.8 | 63.3 | slightly soft |
| %5 Nickel Sulfate | -2.14% | 361.2 | 285.5 | 145.0 | slightly stiff/shrunk |
Copyright 2007 ITW Rippey - All rights reserved