The microchip industry uses Pure 0142 as a critical cleaning agent for photomasks and wafer surfaces. After photolithography, any organic residue left on a silicon wafer can short-circuit nanometer-scale transistors. Pure 0142’s near-zero non-volatile residue (NVR) makes it ideal for this rinse step.
Understanding why Pure 0142 is so highly regarded requires a look at its measurable characteristics. The following are typical specifications for a substance meeting the Pure 0142 standard:
| Property | Value / Specification | |----------|----------------------| | Purity (by GC/MS) | ≥ 99.7% (typical: 99.85%) | | Water content (Karl Fischer) | ≤ 0.02% | | Residue after evaporation | ≤ 0.0005% | | Heavy metals (as Pb) | ≤ 1 ppm | | Boiling point | 78.5°C – 80.2°C | | Flash point | 42°C (closed cup) | | Density at 20°C | 0.865 – 0.875 g/cm³ | | Appearance | Clear, colorless, no particulates |
These figures place Pure 0142 in the category of "chromatographic grade" or "HPLC grade" solvents, but often with stricter controls on non-volatile residues. It is not uncommon for a batch of Pure 0142 to pass tests that generic analytical reagents fail.
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To put Pure 0142’s capabilities in context, consider this comparison table:
| Characteristic | Pure 0142 | ACS Grade | Technical Grade | |----------------|------------|-----------|----------------| | Purity | ≥99.7% | ≥99.0% | ≥95.0% | | Residue after evap. | ≤0.0005% | ≤0.001% | ≤0.05% | | Suitable for semiconductor use | Yes | No | No | | Price per liter (approx.) | $120 | $40 | $15 | | Typical application | API wash, wafer cleaning | College lab experiments | Paint thinning | pure 0142
In the vast ecosystem of industrial standards, product codes, and chemical identifiers, certain alphanumeric sequences carry immense weight. One such sequence that has been generating quiet but crucial attention in specialized sectors is "Pure 0142." While it may look like a random string of numbers to the uninitiated, professionals in manufacturing, pharmaceuticals, and material science recognize it as a benchmark for quality and consistency.
This article delves deep into every aspect of Pure 0142—from its chemical composition and technical specifications to its industrial applications and sourcing best practices. Whether you encountered this term on a safety data sheet, a procurement list, or a research protocol, this guide will provide you with the definitive understanding you need.
The very purity that makes Pure 0142 valuable also makes it vulnerable. To maintain its grade:
Disposal of Pure 0142 must follow local regulations for organic solvents. However, because it contains no halogenated compounds, it is often eligible for fuel blending programs or licensed incineration with energy recovery. The microchip industry uses Pure 0142 as a