What are hydrogen sulfide physical properties?

Hydrogen sulfide is a heavier-than-air, colorless gas with a sweetish taste and characteristic odor of rotten eggs (HSDB 2013). The odor threshold for hydrogen sulfide is variable and various ranges have been reported.

What are three symptoms of H2S exposure?

Symptoms of acute exposure include nausea, headaches, delirium, disturbed equilibrium, tremors, skin and eye irritation, and convulsions. Inhaling high concentrations can produce extremely rapid unconsciousness and death.

What physical conditions can be aggravated by H2S exposure?

Hydrogen sulfide is a mucous membrane and respiratory tract irritant; pulmonary edema, which may be immediate or delayed, can occur after exposure to high concentrations. Symptoms of acute exposure include nausea, headaches, delirium, disturbed equilibrium, tremors, convulsions, and skin and eye irritation.

What are the characteristics of hydrogen sulfide H2S gas?

Hydrogen sulfide (also known as H2S, sewer gas, swamp gas, stink damp, and sour damp) is a colorless gas known for its pungent “rotten egg” odor at low concentrations. It is extremely flammable and highly toxic. Hydrogen sulfide also occurs naturally in sewers, manure pits, well water, oil and gas wells, and volcanoes.

What are the physical properties and uses of sulfur?

Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in water. It reacts with all metals except gold and platinum, forming sulfides; it also forms compounds with several nonmetallic elements.

What is water physical properties?

Physical properties of water are related to the appearance of water, namely, the color, temperature, turbidity, taste, and odor.

What are symptoms of H2S exposure?

Prolonged exposure may cause nausea, tearing of the eyes, headaches or loss of sleep. Airway problems (bronchial constriction) in some asthma patients. Possible fatigue, loss of appetite, headache, irritability, poor memory, dizziness. Slight conjunctivitis (“gas eye”) and respiratory tract irritation after 1 hour.

How do you test for hydrogen sulfide in the air?

Air must be tested for the presence and concentration of hydrogen sulfide by a qualified person using air monitoring equipment, such as hydrogen sulfide detector tubes or a multi-gas meter that detects the gas. Testing should also determine if fire/ explosion precautions are necessary.

What should you do if you are exposed to hydrogen sulfide gas?

Those exposed to H2S gas should remove themselves from the toxic environment immediately. Rescuers need to take caution when approaching victims who cannot evacuate independently, as to not be harmed themselves by H2S exposure.

How do you test for hydrogen sulfide poisoning?

Specific tests for the presence of hydrogen sulfide in blood and urine generally are not useful to the doctor. If a severe exposure has occurred, blood and urine analyses and other tests may show whether the brain, nerves, heart, or kidneys have been injured.

What should you do if you are exposed to hydrogen sulfide?

How do you test for hydrogen sulfide?

Unlike other toxic gases, hydrogen sulphide can be identified by an odor. That smell, distinct as it is, isn’t very reliable when it comes to detecting leaks. Due to a process known as olfactory desensitization, high concentrations of H2S gas can cause your sense of smell to disappear.

What are the effects of hydrogen sulfide?

“Hydrogen sulfide does not accumulate in the body. Nevertheless, repeated or prolonged exposure has been reported to cause low blood pressure, headache, nausea, loss of appetite, weight loss, ataxia, eye-membrane inflammation, and chronic cough.

Is hydrogen sulfide bad for You?

Hydrogen Sulfide is a toxic, flammable, colorless gas with an offensive odor frequently referred to as smelling like “rotten eggs”. In very high concentrations it is instantly fatal if inhaled. It is also irritating to the eyes and upper respiratory tract in low concentrations.

What are dangerous levels of H2S?

H2S is also extremely corrosive. The 8-hour maximum average exposure level for H2S set by OSHA is 10 ppm. The 10-minute exposure ceiling level is 20 ppm, and concentrations over 100 ppm are considered immediately dangerous to life and health.

Is H2S dangerous?

H2S, or hydrogen sulfide , is a colorless gas that is flammable and extremely hazardous. The gas is often associated with “rotten egg” smell and can be very dangerous to be around.