Symptoms of alum poisoning?

summary

Jarosite, generally refers to two things, one is the abbreviation of potassium dichromate (also known as sodium jarosite), chemical formula: K2Cr2O7 orange red crystal, soluble in water, strong oxidant. After the concentrated solution is added with concentrated sulfuric acid, the chromic acid washing solution commonly used in the laboratory is obtained. And the other is arsenic trioxide, the so-called arsenic in the book. Arsenic chemical formula As2O3, impure arsenic trioxide red, highly toxic, also known as heding red, also known as alum.

Symptoms of alum poisoning?

Arsenic is very toxic. It can destroy some cell respiratory enzymes after entering the human body, making tissue cells unable to obtain oxygen and die; It can also strongly stimulate the gastrointestinal mucosa and make the mucosa ulcerate and bleed; Can also damage blood vessels, bleeding, damage the liver, serious will die of respiratory and circulatory failure. There are two kinds of symptoms of acute arsenism: gastrointestinal type, the most common.

The onset time varies with the size of the dose and the degree of gastric filling, 15-30 minutes fast, 4-5 hours slow, generally about 1 hour. At the beginning, there was burning sensation, thirst and nausea in the throat, then severe abdominal pain and vomiting. At the beginning, food was vomited, followed by yellow water, and severe diarrhea. At the beginning, it was common feces, and then it was like rice soup. Urine volume decreased, body temperature and blood pressure decreased, collapse, coma, and finally died of circulatory failure. Nerve type is rare.

If a large amount of arsenic is taken at one time, it can cause severe circulatory failure, blood pressure drop, rapid and weak pulse, superficial respiration and central nerve paralysis. The symptoms are dizziness, headache, muscle spasm, rapid unconsciousness, and then respiratory paralysis, can die within 1 hour. The poisoning dose of arsenic trioxide was 0.005-0.05g, and the lethal dose was 0.1-0.2g. Some people take a lot of arsenic (3G) and do not die; This is due to the strong stimulation of arsenic to the stomach, causing strong vomiting, and spitting out the swallowed arsenic without being absorbed by the body, so no serious consequences were caused.

matters needing attention

Arsenic is the main component of arsenic, arsenic in the natural state of toxicity is not strong, but its compounds often have a strong toxicity. The white powder we usually see, namely arsenic, is impure arsenic trioxide. Several centuries ago, killers chose arsenic as a tool to kill people. In addition to its toxicity, arsenic is odorless and tasteless, so it is difficult to be detected on corpses.