Hydrochloric acid
From the Simple English Wikipedia, the free encyclopedia that anyone can change
Hydrochloric acid is a chemical compound. It is a solution of hydrogen chloride (HCl) gas that is dissolved in water. It used to be called muriatic acid. It is widely used in industry, and it is also made by the stomach to help digest food.
[change] Safety
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In high concentrations, hydrochloric acid can make acidic mists. Both the mist and the solution hurt human tissue. They are caustic, and can cause chemical burns. These can damage the eyes, the skin, the respiratory system, and other organs of the human body.
When hydrochloric acid is mixed with certain chemicals such as bleach, the toxic gas chlorine is made. When working with hydrochloric acid, certain safety measures should be taken. These include using rubber or PVC gloves, wearing goggles to protect the eyes, as well as special clothing that is resistant to chemicals.
The risks of coming in contact with hydrochloric acid depend on its concentration. The following table lists the EU classification of hydrochloric acid solutions:
| Concentration by weight |
Classification | R-Phrases |
|---|---|---|
| 10%–25% | Irritant (Xi) | R36/37/38 |
| >25% | Corrosive (C) | R34 R37 |
The Environmental Protection Agency says hydrochloric acid is a toxin.[1]
[change] References
- ↑ HCl score card. Environmental Protection Agency. Retrieved on 12 September 2007.
