Archive for the Uncategorized Category

Your Car’s Battery Can Be Deadly

Posted in Uncategorized on February 22, 2017 by strangechemist

This is not something that happens often, but it happened. A Car battery which was broken or damaged caused the death of mother and 3-year-old daughter. They were found with no signs of life in their car. The cause of death was determined to be poisoning with very toxic gas: hydrogen sulfide from a car batter battery, which has been placed under the driver’s seat. In this case, the smell was so intense that first responders were forced to initially retreat. Car batteries are usually sealed and should not emit any gas. However, this case showed that there is always the exception.

A car battery consists basically of two lead plates which are immersed into sulfuric acid. During regular charging and discharging cycles of batteries containing sulfuric acid, there shouldn’t be any hydrogen sulfide production. So how can hydrogen sulfide occur? It can be produced by the broken battery or by heat production when overcharging it. In such conditions, hydrogen can be released from the sulphuric acid solution which can form the poisonous hydrogen sulfide gas.

Hydrogen sulfide is a colorless gas with the characteristic smell of rotten eggs. It is very poisonous, corrosive, and flammable. It’s heavier than air, so it’s accumulating at the bottom of poorly vented spaces. Once you can smell it, it means that its concentrations are high enough to be toxic. It affects many systems in the human body and the one which is the most affected is the nervous system.

When air has been contaminated with hydrogen sulfide even a few breaths can cause a loss of the sense of smell and the lack of awareness of surroundings. In the case of even short exposure to high concentration of hydrogen sulfide, death can occur in few moments. The main cause of death is because of inhibitory properties of hydrogen sulfide, which stops cells’ ability to absorb oxygen. In short, the victims die from suffocation. The best course of action if you think you are smelling hydrogen sulfide gas is to vent the space,  and leave until it’s properly vented.

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Are you ready for powdered alcohol?

Posted in Uncategorized on March 21, 2015 by strangechemist

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You should be because early in march the controversial powdered alcohol product call Palcohol received approval from The Alcohol and Tobacco Tax and Trade Bureau (TTB). As part of the U.S. Treasury Department, the TTB has the authority to review the formulation and labeling of distilled spirits products. The Palcohol product would come in 100 ml pouches, with five ounces (150 ml) of water being added to the powder inside to create the equivalent of an alcoholic drink. The Arizona-based company which produces Palcohol, Lipsmark LLC, has been given approval for four flavors of powdered alcohol: cosmopolitan, margarita, vodka, and rum.
Because Palcohol is an entirely new form of alcohol, there has been intense concern from legislatures about the possible misuse by people. Concerns include accidental overdose due to unfamiliarity with its potency, the possibly of its flavors being appealing to small children, it could be easy to sneak powdered alcohol into public events, people may try to snort the powder, and powdered alcohol could be used to surreptitiously spike a drink. The TTB was quick to point out that although Palcohol has received federal approval, states can also regulate alcohol sales within their borders. This is exactly what multiple states – including South Carolina, Louisiana and Vermont — have done by preemptively banning powdered alcohol products. Other states – such as Nebraska, Pennsylvania, Virginia and Massachusetts — have proposed obstructive legislation against powdered alcohol products.
So how does powdered alcohol work? Although the actual formulation of Palcohol is a secret, the process of making powdered alcohols is quite well-known. In fact, a U.S. patent for powdered alcohol products was submitted by the General Foods Corporation in 1972. To put it simply, the liquid alcohol is absorbed by a solid substance which retains it solid form. A good example of this is how a sponge can absorb water and still remain a solid. Now imagine a powder made up of a multitude of tiny sponges and you are getting close to what is going on. In the case of Palcohol, the absorbent substance is most likely made of a class of molecules called dextrins. Dextrins are made by breaking up starch, which is produced by many common foods such as potatoes, corn, and rice. Dextrins are commonly used as the absorbing agent in powdered alcohols because they do not increase the sweetness of the drink, are easily dissolved in cold water, and do not impart any flavor. Also, dextrins are known to produce powders even with an alcohol content of 60%.
If you are ready for powdered alcohol it should be commercially available this summer!

Who I am!

Posted in Uncategorized on October 13, 2012 by strangechemist

I am a university professor who holds a doctorate in organic chemistry.   In addition to working in the industry for a short while I have taught general and organic chemistry courses at three different campuses.  After teaching chemistry for a while I, noticed that the more interesting and edgy aspects of chemistry were never discussed in textbooks and in lectures.  As a student I remembered that any stories told by instructors, which ties the material in with real life, tended to have a dramatic impact on me.  To that end, I have created this blog to highlight the many strange ways chemistry shows up in our lives.