显示标签为“Hydrofluoric acid”的博文。显示所有博文
显示标签为“Hydrofluoric acid”的博文。显示所有博文

2013年7月15日星期一

How can we protect ourselves from Hydrofluoric acid

Hydrofluoric acid is an aqueous solution of hydrogen fluoride, it has a strong corrosive. Because of the hydrogen atoms and fluorine atoms binding capacity is relatively strong, so that hydrofluoric acid can not be completely ionized in water, the low concentration of hydrofluoric acid is a weak acid in theory, but hydrofluoric acid can dissolve the glass which many other acids can not.

Obviously, Hydrofluoric acid is dangerous for us, so how you can protect yourself from Hydrofluoric acid poisoning.

First, if the Hydrofluoric acid  was released into the air, get fresh air by leaving the area where the chemical was released. If the Hydrofluoric acid  release was outside, move away from the area where the chemical was released. If the Hydrofluoric acid  release occurred indoors, get out of the building. If you are near a release of fluorine or Hydrofluoric acid , emergency coordinators may tell you either to evacuate the area or “shelter in place” inside a building to avoid being exposed to the chemical.

If you think you may have been exposed to Hydrofluoric acid , you should remove your clothing, rapidly wash your entire body with water, and get medical care as quickly as possible.
1. Removing your clothing
Quickly take off clothing that may have Hydrofluoric acid  on it. Any clothing that has to be pulled over the head should be cut off the body. If you are helping other people remove their clothing, try to avoid touching any contaminated areas, and remove the clothing as quickly as possible.
2. Washing yourself
As quickly as possible, wash any Hydrofluoric acid  from your skin with large amounts of water. If your eyes are burning or your vision is blurred, rinse your eyes with plain water. If you wear contacts, remove them after washing your hands and put them with the contaminated clothing. Do not put the contacts back in your eyes (even if they are not disposable contacts). If you wear eyeglasses, wash them with soap and water. You can put your eyeglasses back on after you wash them.
3. Disposing of your clothes
After you have washed yourself, place your clothing inside a plastic bag. Avoid touching contaminated areas of the clothing. If you can't avoid touching contaminated areas, or you aren't sure which areas are contaminated, put the clothing in the bag using tongs, tool handles, sticks, or similar objects. Anything that touches contaminated clothing should also be placed in the bag. Seal the bag, and then seal that bag inside another plastic bag. Disposing of your clothing in this way will help protect you and other people from any chemicals that might be on your clothes. When local or state health department or emergency personnel arrive, tell them what you did with your clothes. The health department or emergency personnel will arrange for further disposal. Do not handle the plastic bags yourself.

If someone has swallowed Hydrofluoric acid , do not induce vomiting. Do not give the person activated charcoal. Seek medical attention immediately. Dial 911 and explain what has happened. If you are sure the person has swallowed Hydrofluoric acid , do not attempt CPR unless you are able to take appropriate measures to protect yourself from exposure to Hydrofluoric acid . Performing CPR on someone who has swallowed Hydrofluoric acid  could expose you to the chemical.


Frankie is the freelance writer for e-commerce website in the chemistry. Guidechem.com is just a place for you to look for some chemicals. Our guidechem provide the most convenient conditions for the international buyers and let these leads benefit all the business people. Guidechem chemical B2B network provides information on china and global chemical market quotation and relative chemical Information. Guidechem Chemical Network providing the most complete information of the chemical industry.

2013年7月9日星期二

How to treat Hydrofluoric acid poisoning

First, let me tell you some basic information about Hydrofluoric acid. Hydrofluoric acid is an aqueous solution of hydrogen fluoride, it has a strong corrosive. Hydrofluoric acid is also an important chemical raw materials, widely used in various areas. So Hydrofluoric acid may appear in every corner of our life, you may get Hydrofluoric acid poisoning unconsciously.

This article we will discuss Hydrofluoric acid poisoning from swallowing, breathing in, or touching. This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or a local poison control center at 1-800-222-1222.

This acid is most commonly used for industrial purposes. It is used in:
1. Computer screens manufacturing
2. Fluorescent bulbs
3. Glass etching
4. High octane gasoline manufacturing
5. Some household rust removers

Before you learn how to treat Hydrofluoric acid poisoning, I think you should clear the Symptoms of Hydrofluoric acid poisoning. If one got poisoning from swallowing, the Symptoms may be can't breathe as the throat swells shut, fever, severe abdominal pain, Severe pain in the mouth, Severe throat pain and Vomiting. If from breathing in (inhaling) the acid, Bluish colored lips and fingernails, chills, choking, coughing, fever and tight chest should be the Symptoms. From touching the acid, the Symptoms should be Very painful skin burning.

If you find above Symptoms in your family, friends or any others who may touch the things mentioned in the above passage. You should do these things in fellow paragraph.

Seek immediate medical help. DO NOT make a person throw up unless told to do so by Poison Control or a health care professional. If the chemical is on the skin or in the eyes, flush with lots of water for at least 15 minutes. Immediately take the person to the hospital. At the same time, you should collect these information for Emergency :
1. The patient's age, weight, and condition
2. The name of the product (ingredients and strengths if known)
3. The time it was swallowed
4. The amount swallowed

If you suspect possible poisoning, seek emergency medical care immediately. In the United States, call 1-800-222-1222 to speak with a local poison control center. This hotline number will let you talk to experts in poisoning. They will give you further instructions. This is a free and confidential service. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call 24 hours a day, 7 days a week. Take the container with you to the hospital, if possible.


Frankie is the freelance writer for e-commerce website in the chemistry. Guidechem.com is just a place for you to look for some chemicals. Our guidechem provide the most convenient conditions for the international buyers and let these leads benefit all the business people. Guidechem chemical B2B network provides information on china and global chemical market quotation and relative chemical Information. Guidechem Chemical Network providing the most complete information of the chemical industry.

2013年7月2日星期二

Uses of Hydrofluoric acid

Hydrofluoric acid is an aqueous solution of hydrogen fluoride, it has a strong corrosive. Because of the hydrogen atoms and fluorine atoms binding capacity is relatively strong, so that hydrofluoric acid can not be completely ionized in water, the low concentration of hydrofluoric acid is a weak acid in theory, but hydrofluoric acid can dissolve the glass which many other acids can not.

Hydrofluoric acid is an important chemical raw materials, Widely used in various areas.
For example , it use widely in Oil refining, In a standard oil refinery process known as alkylation, isobutane is alkylated with low-molecular-weight alkenes in the presence of the strong acid catalyst derived from hydrofluoric acid.

Another use about Hydrofluoric acid is Production of organofluorine compounds, Many organofluorine compoundsincluding Teflon, fluoropolymers, fluorocarbons and refrigerants are prepared using Hydrofluoric acid as the fluorine source.

The third use is Production of fluorides, Most high-volume inorganic fluoride compounds, such as Na3AlF6, cryolite, and AlF3, aluminium trifluoride are prepared from hydrofluoric acid.

Etchant and cleaning agent is one of most important use of Hydrofluoric acid. Hydrofluoric acid is used as a pickling agent to remove oxides and other impurities from stainless and carbon steels in metalworking. It is used in the semiconductor industry as a major component of Wright Etch and buffered oxide etch, which are use to clean silicon wafers.It is also used to etch glass by reacting with silicon dioxide to form gaseous or water-soluble silicon fluorides.

Hydrofluoric acid has another use in Niche application. Hydrofluoric acid can dissolve most oxides and silicates. Because of this character ,it is useful for dissolving rock samples before to analysis. In similar manner, Hydrofluoric acid is used in acid macerations to extract organic fossils from silicate rocks. Fossiliferous rock may be immersed directly into the acid, or a cellulose nitrate film may be applied (dissolved in amyl acetate), which adheres to the organic component and allows the rock to be dissolved around it.

Some collectors of antique glass bottles also use Hydrofluoric acid to remove so-called 'sickness' from the glass, Because Hydrofluoric acid can attack the soda content of the glass.


Frankie is the freelance writer for e-commerce website in the chemistry. Guidechem.com is just a place for you to look for some chemicals. Our guidechem provide the most convenient conditions for the international buyers and let these leads benefit all the business people. Guidechem chemical B2B network provides information on china and global chemical market quotation and relative chemical Information. Guidechem Chemical Network providing the most complete information of the chemical industry.