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Buffered Oxide Etchants (BOE)
Puritan Products blends buffered oxide etchants with or
without surfactant. BOEs are available in poly bottles, poly pails, or poly drums.
The most common BOE’s are available as well as custom mix ratios for your
specific application. If you need a customized BOE, please see our our custom services information form.
BOEs are available in the following ratios:
|
Ratio |
Assay (as NH4F)* |
Assay (as HF)* |
|
5:1 |
32.0-34.0% |
8.2-8.5% |
|
6:1 |
33.5-35.5% |
7.0-7.3% |
|
7:1 |
34.3-35.3% |
6.18-6.48% |
|
9:1 |
35.0-37.0% |
4.9-5.2% |
|
10:1 |
35.5-37.5% |
4.4-4.7% |
|
11:1 |
35.6-37.6% |
4.1-4.4% |
|
20:1 |
37.5-38.5% |
2.32-2.52% |
|
30:1 |
37.7-39.7% |
1.5-1.8% |
|
40:1 |
38.5-39.5% |
1.09-1.39% |
|
50:1 |
38.7-39.7% |
1.0-1.1% |
|
Custom |
Custom |
Custom |
*Weight Percent
Mixed Acid Etchants (MAE)
Mixed Acid Etchants, typically a mix of Nitric acid,
Hydrofluoric acid, Acetic acid, and possibly water, are blended to your
specifications for your application. MAEs are available in poly bottles, poly
pails, or poly drums. To request your customized MAE please see our custom services information form.
Dilute Hydrofluoric Acid (HF Dips)
Puritan Products dilutes hydrofluoric acid to your
specifications. The dilute HF is available in poly bottles, poly pails, and poly
drums. The most common ratios of dilute HF are available as well as custom
ratios for your specific application. If you need a customized HF Dip, please see our custom services information form.
|
Ratio |
Assay (as HF)* |
|
5:1 |
9.1-9.3% |
| 10:1 |
4.8-5.0% |
|
20:1 |
2.62-3.00% |
|
40:1 |
1.35-1.45% |
|
50:1 |
1.05-1.15% |
|
100:1 |
0.52-0.60% |
|
Custom |
Custom |
*Weight Percent
Aluminum Etchants
Aluminum Etchants, a blend of Phosphoric acid, Nitric acid,
Acetic acid, and water are customized to your specifications for your
application. These etchants are available in poly bottles, poly pails, and
poly drums. To request your customized Aluminum Etchant please see our custom services information form.
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