Hydrogen Cyanide (HCN)
Hydrogen cyanide (HCN), sometimes called prussic acid, is a chemical compound with the chemical formula HCN. It is a colorless, extremely poisonous and flammable liquid that boils slightly above room temperature, at 25.6 °C (78.1 °F). HCN is produced on an industrial scale and is a highly valuable precursor to many chemical compounds ranging from polymers to pharmaceuticals.
SEMA Gases is a manufacturer of span gases in disposable cylinder cans from the Netherlands, established from the want to create a label which is applicable for all brands of gas detection equipment. The products of SEMA Gases are used for calibration of portable gas detection instruments and calibration of fixed gas detection systems. SEMA Gases produces single gases (flammable gases, oxygen, toxic gases) and gas mixtures (2, 3, 4 or 5 gas mixtures) in various cylinder size up to 110 ltr.
Hydrogen Cyanide Calibration Gases
| 34L | 58L | 110L | Cert. tol. | Prod. tol. | Stability (months) |
|
|---|---|---|---|---|---|---|
| 5 ppm Hydrogen Cyanide // Nitrogen | Available | Available | Available | +/- 5% | +/- 10% | 12 |
| 10 ppm Hydrogen Cyanide // Nitrogen | Available | Available | Available | +/- 5% | +/- 10% | 12 |
| 20 ppm Hydrogen Cyanide // Nitrogen | Available | Available | Available | +/- 5% | +/- 10% | 12 |
| 25 ppm Hydrogen Cyanide // Nitrogen | Available | Available | Available | +/- 5% | +/- 10% | 12 |
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