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| chemical:start [2012/02/21 01:22] – mcmaster | chemical:start [2013/10/20 14:59] (current) – external edit 127.0.0.1 | ||
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| Delayering: component of all wet etches | Delayering: component of all wet etches | ||
| Can be stored in polymethylpentene (PMP), polyethylene (PE), and Teflon (PTFE). [Isotropic Silicon Etching using HF/ | Can be stored in polymethylpentene (PMP), polyethylene (PE), and Teflon (PTFE). [Isotropic Silicon Etching using HF/ | ||
| - | ~2.5% HF solution can be found in Whink brand rust remover. Unfortunately, | ||
| - | |||
| - | ===== Health ===== | ||
| HF is notably toxic | HF is notably toxic | ||
| + | |||
| + | See [[HF]] for more details | ||
| + | |||
| ====== Isopropanol (Isopropyl alcohol (IPA)) ====== | ====== Isopropanol (Isopropyl alcohol (IPA)) ====== | ||
| Line 42: | Line 42: | ||
| General cleaning | General cleaning | ||
| - | ====== Nitric acid (HNO3, 70%) ====== | + | ====== Nitric acid (HNO3) ====== |
| - | Decapsulation: | + | Decapsulation. Info on making: [[chemical: |
| - | ====== Nitric acid (HNO3, red fuming / RFNA) ====== | ||
| - | |||
| - | Live analysis decapsulation | ||
| ====== Potassium dichromate (K2Cr2O7) ====== | ====== Potassium dichromate (K2Cr2O7) ====== | ||
| Line 82: | Line 79: | ||
| ===== Hydrofluoric acid ===== | ===== Hydrofluoric acid ===== | ||
| - | MSDS: http:// | + | * MSDS: http:// |
| + | * Health: 4 | ||
| + | * Flammability: | ||
| + | * Instability/ | ||
| + | * Other: corrosive | ||
| - | Health: 4 | ||
| - | Flammability: | ||
| - | Instability/ | ||
| - | Other: corrosive | ||
| WARNING: probably the most dangerous chemical you might encounter for this work. Suggest use of fully body protection including gloves, acid gas respirator, and frontal protection. Contact can include causing excruciating pain from dissolving bones, severe burns, cardiac arrest, and more. It may be useful to keep calcium gluconate (2.5% gel) handy to increase chance of survival in case of contact. Seek IMMEDIATE medical attention. It is unknown how over the counter HF from Whink rust remover compares to concentrate in terms of necessary safety precautions. | WARNING: probably the most dangerous chemical you might encounter for this work. Suggest use of fully body protection including gloves, acid gas respirator, and frontal protection. Contact can include causing excruciating pain from dissolving bones, severe burns, cardiac arrest, and more. It may be useful to keep calcium gluconate (2.5% gel) handy to increase chance of survival in case of contact. Seek IMMEDIATE medical attention. It is unknown how over the counter HF from Whink rust remover compares to concentrate in terms of necessary safety precautions. | ||
| - | [[image: | ||
| - | ===== Nitric acid ===== | + | {{gallery> |
| - | MSDS: http:// | + | |
| - | Health: 4 | + | ===== Nitric acid ===== |
| - | Flammability: | + | |
| - | Instability/ | + | |
| - | Other: oxidizer | + | |
| - | Causes severe burns. | + | |
| + | | ||
| + | | ||
| ===== Sulphuric acid ===== | ===== Sulphuric acid ===== | ||
| - | MSDS: http:// | + | * MSDS: http:// |
| - | Health: 3 | + | |
| - | Flammability: | + | |
| - | Instability/ | + | |
| - | Other: reactive to water | + | |
| - | Causes severe burns. | + | |
| ===== Hydrogen peroxide ===== | ===== Hydrogen peroxide ===== | ||
| - | MSDS: http:// | + | * MSDS: http:// |
| - | Health: 3 | + | |
| - | Flammability: | + | |
| - | Instability/ | + | |
| - | Other: oxidizer | + | |
| - | Strong oxidizer. Even low concentrations can be dangerous when mixed with certain chemicals. | + | |
| ====== References ====== | ====== References ====== | ||