Specifically, it is calibrated and measured at the volume per degree change in temperature at a constant pressure. Thanks 7. The scale marked on the bar attached to the tube. Show references. Thermometers containing a blue or red colour liquid are most often utilising an organic fluid, usually alcohol-based. If the reading on a mercury column exceeds 35 C, you need to shake the thermometer.In any case, do not use a vacuum cleaner for cleaning dust. The mercury can easily penetrate into the pile of carpets, in cracks of floors, in the gap between the baseboard and the floor. The tube is sealed on both sides and from inside her deflated air.
Thermister-based or “metal thermometers” are recommended in these applications, which do not utilise any liquid for temperature measurement.Broken alcohol thermometers can be disposed of in an ordinary fashion, being careful of any broken glass.Mercury thermometers should never be accessible by infants or children.A broken mercury thermometer should be handled as an emergency situation requiring immediate attention. There are two main reasons.First, the vacuum itself is dirty with particles of mercury, and use them in the future it will be impossible and dangerous.Secondly, the filters of a vacuum cleaner won’t keep all mercury, and most of it has already led once again will be in the room and settles on all possible surfaces (from which it will be difficult to collect), and lots of it gets into your lungs.Once you have collected all of the mercury needs to be treated very gently and carefully. Mercury is especially harmful to foetuses, infants and children.The metallic mercury in thermometers, if introduced into the environment in a non-controlled manner, can eventually enter the water ecosystem, where microorganisms break it down to methylmercury components. 3.4 8 votes 8 votes Rate! The disadvantage is that they get damaged easily if dropped and the battery powering them eventually runs out. He holds a Bachelor of Science in chemistry from the University of Wisconsin and a Master of Business Administration from Lake Forest. 5 advantages and 5 disadvantages of mercury barometer. In a mercury- or alcohol-filled thermometer, it is the change in fluid volume that is important.
It consists of a bulb containing mercury attached to a glass tube of narrow diameter; the volume of mercury in the tube is much less than the volume in the bulb. Mercury is used today in a wide variety of products and processes. For the retail consumer, the most common applications are for cooking, health monitoring and inside/outdoor temperature.Historically, mercury thermometers have been used for nearly all temperature measurements because of their accuracy and low cost. According to Medicinenet.com, all birds and mammals are threatened by death, reduced reproduction, slower growth, delayed development and abnormal behaviour as a result of a diet high in contaminated seafood.Alcohol thermometers are also inexpensive and durable. The jar with the collected mercury can be temporarily put on the balcony or in the garage, providing all the means for its integrity, and then pass to the representatives of the rescue service.To the stage of chemical decontamination should proceed only if all the visible droplets of mercury and is collected and removed from the premises all objects and things vulnerable to pollution.For this, you will need available home chemicals. However, in a gaseous state, as organomercuric compounds or as inorganic salts, it becomes a deadly toxin. Just like the mercury/alcohol thermometer, it is inserted under the tongue or in the armpit or inside the rectum to measure body temperature. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. For reliability, it is better to prepare one liter.Qsota does not provide medical advice, diagnosis or treatment - It is identified by its familiar silver metallic colour. Disadvantages of a Mercury Thermometer: it took a Long time to measure the body temperature. Then the mercury that is actively evaporating, pollutes and poisons all the air in the room.If a person breathes this air constantly, over time the mercury begins to accumulate in the body, which in turn leads to chronic mercury intoxication, which may include a metallic taste in the mouth, headaches, diarrhea, kidney damage, stomatitis, salivation, anemia, dermatitis, tremor of the limbs.Before each measurement of body temperature, check the thermometer, examined it carefully.
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