
Muriatic acid is a less-pure variant of hydrochloric acid, which is available in high concentrations for home restoration and maintenance projects. It is a powerful chemical agent that can corrode plastics, metals, clothing, and skin. While most commonly used plastics are fairly resistant to hydrochloric acid, muriatic acid can eat through some plastics, such as the plastic jug it is supplied in. It is recommended to use an acid-resistant plastic container for mixing and storing muriatic acid.
| Characteristics | Values |
|---|---|
| Muriatic acid is a strong concentration of | Hydrochloric acid |
| Plastic's resistance to hydrochloric acid | Depends on the type of plastic |
| Muriatic acid can be stored in plastic containers | Yes, if they are acid-resistant |
| Muriatic acid can be applied using | Plastic sprayers |
| Muriatic acid can be stored in | Plastic buckets or tubs |
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What You'll Learn
- Muriatic acid is a less-pure variant of hydrochloric acid
- Plastic is not one compound, and some plastics are more resistant than others
- Muriatic acid can be stored in plastic containers if they are acid-resistant
- Muriatic acid can be used on large surface areas with a plastic sprayer
- Muriatic acid can be stored in a plastic bucket or tub for safety if it is also stored in glass

Muriatic acid is a less-pure variant of hydrochloric acid
Muriatic acid is an older commercial term for hydrochloric acid. It is also known as spirits of salt or acidum salis. The name "muriatic" comes from the Latin "muriatus", meaning pertaining to brine or salt. Muriatic acid is prepared from hydrogen chloride dissolved in water. There is no standard concentration for this acid, with common dilutions ranging from 14.5% to 31.5% HCl by mass.
Hydrochloric acid, on the other hand, can be produced in solutions up to 38% HCl. Higher concentrations are chemically possible, but these require extra precautions for storage and handling. Hydrochloric acid is colourless with a pungent smell. It is less hazardous to handle than other strong acids because it contains the non-reactive and non-toxic chloride ion.
In terms of their practical uses, both acids are often used for cleaning. Muriatic acid can be kept for months in plastic containers, as long as they are acid-resistant. It can be applied to large surface areas using a plastic sprayer. However, it is important to note that it can corrode some plastics, so it is recommended to consult a chemical compatibility chart.
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Plastic is not one compound, and some plastics are more resistant than others
Muriatic acid is a less pure variant of hydrochloric acid, available in high concentrations for home restoration and maintenance projects. It is a strong acid and an important laboratory reagent. It is a good solvent for carbonates, phosphates, many metal oxides, and metals.
While muriatic acid is a strong chemical agent, it does not eat through most plastics. Plastic is not one compound, and some plastics are more resistant than others. For instance, commonly used plastics are resistant to hydrochloric acid. However, some plastics will deteriorate quickly when exposed to muriatic acid. It is important to use acid-resistant plastic containers when storing or using muriatic acid.
When using muriatic acid for large surface applications, it is suggested to be applied with a plastic sprayer. It is also recommended to mix the acid in a glass or acid-resistant plastic container.
To determine the compatibility of a specific type of plastic with muriatic acid, it is advisable to consult a chemical compatibility chart. These charts provide information on the resistance of different plastics to various chemicals, including hydrochloric acid.
In some cases, muriatic acid has been observed to eat through plastic containers. However, this could be due to the presence of other substances, such as peroxide, that may have been inadvertently mixed with the acid.
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Muriatic acid can be stored in plastic containers if they are acid-resistant
Muriatic acid, a less-pure variant of hydrochloric acid, is available in high concentrations for home restoration and maintenance projects. It is a powerful chemical agent that is corrosive to plastics, metals, clothing, and skin.
While muriatic acid can be stored in plastic containers, it depends on the type of plastic and its resistance to the acid. Some plastics are more resistant to hydrochloric acid than others, such as HDPE, MDPE, and LDPE. It is important to consult a chemical compatibility chart to determine the suitability of a specific type of plastic for storing muriatic acid.
Muriatic acid can be kept for months in plastic containers, as long as they are made of acid-resistant plastic. However, it is important to note that the plastic is bound to deteriorate over time, and you may need to replace the container periodically. If you are considering long-term storage, it is advisable to purchase muriatic acid in smaller quantities to reduce the risk of container deterioration.
When using muriatic acid for cleaning or other applications, it is recommended to use a plastic sprayer made of acid-resistant plastic. This ensures that the acid is applied safely and effectively without damaging the sprayer. Additionally, if you are mixing muriatic acid with other substances, always use a glass or acid-resistant plastic container to ensure safety and avoid unwanted chemical reactions.
In summary, muriatic acid can be stored in plastic containers if they are made of acid-resistant plastic. However, it is important to consider the specific type of plastic, consult compatibility charts, and be mindful of the potential for container deterioration over time. Safe handling and storage of muriatic acid are crucial to prevent damage to property and ensure personal safety.
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Muriatic acid can be used on large surface areas with a plastic sprayer
Muriatic acid, a less-pure variant of hydrochloric acid, is available in high concentrations for home restoration and maintenance projects. It is a powerful chemical agent that is corrosive to plastics, metals, clothing, and skin.
When using muriatic acid on large surface areas, it must be applied with a plastic sprayer. It is important to note that not all plastics are the same, and some are more resistant to acids than others. The most commonly used plastics are fairly resistant to hydrochloric acid. However, the plastic sprayer is likely to deteriorate quickly, so it is recommended to have more than one on hand to complete the job.
To ensure safe use, muriatic acid should only be mixed in a glass or acid-resistant plastic container. It can be kept for months in plastic containers as long as they are acid-resistant. It is also important to contact your local recycling center for instructions on the safe disposal of muriatic acid.
It is worth noting that if muriatic acid is eating through the plastic bottle it was supplied in, it may have been contaminated with another substance, such as peroxide. In such cases, it is best to consult a chemical compatibility chart to determine the appropriate plastic type for your specific use case.
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Muriatic acid can be stored in a plastic bucket or tub for safety if it is also stored in glass
Muriatic acid is a less-pure variant of hydrochloric acid and is available in high concentrations for home restoration and maintenance projects. It is a powerful chemical agent and is capable of corroding plastics, metals, clothing, and skin.
While most commonly used plastics are fairly resistant to hydrochloric acid, muriatic acid can eat through some plastics. If you are using muriatic acid on large surface areas, it will need to be applied with a plastic sprayer. It can be kept for months in plastic containers, but only if they are acid-resistant.
If you are storing muriatic acid, it is recommended to use a glass container. However, if you are concerned about the possibility of breakage, you can store the glass container in a plastic bucket or tub for added safety.
It is important to note that if your muriatic acid is eating through the plastic bottle it was supplied in, it may have been contaminated with another substance, such as peroxide. In this case, it is best to consult a chemical compatibility chart to determine the appropriate storage container.
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Frequently asked questions
Muriatic acid is a strong concentration of hydrochloric acid. While it does not dissolve plastic, it can corrode some plastics. It can be kept in plastic containers for months, as long as they are acid-resistant.
Muriatic acid can be stored in acid-resistant plastic containers. If being used for large surface areas, it can be applied with a plastic sprayer.
Muriatic acid is a powerful chemical agent that can corrode plastics, metals, clothing, and skin. It should only be mixed in glass or acid-resistant plastic containers.








































