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Fact Check: Will Alcohol Based Hand Sanitizer Left In A Car Cause It To Combust?
Writer: Aditi Chattopadhyay
Aditi, part of the fact checking team of The Logical Indian likes to read, write, cook and laugh, in short live life as it is supposed to be. What makes her fascinated is to discover the truth behind a story and more often than not, it is either fact or myth at the end.
India, 28 May 2020 2:44 PM GMT | Updated 29 May 2020 1:34 AM GMT
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The Logical Indian Fact check team investigate the claim that a bottle of hand sanitizer may start a fire in one's car on a hot day.
As of May 28, India has reported 1,58,333 cases of COVID-19 out of which 86,110 are active. Till date 67,692 have recovered from the disease and 4,531 Indians have lost their lives to the deadly virus.
In the fight against COVID-19, Masks and sanitizers have become an essential part of our daily lives.
Netizens on social media have been sharing a video with the claim that a bottle of sanitizer if left in a car, may cause it to combust. Images showing a burnt car is also doing the rounds with similar claims.
This post has been shared at least 15,000 times.
Claim:
A bottle of hand sanitizer may start a fire in one's car on a hot day.
Fact Check:
The claim is misleading.
Are Alcohol-Based Hand Sanitizer Flammable (ABHS)?
According to the Centers for Disease Control And Prevention (CDC), ABHS consist of ethyl alcohol, which can readily evaporate at room temperature into an ignitable vapour. It is considered a flammable liquid.
Although the incidence of fires related to ABHS is rare, it is vital that ABHS is stored safely and bulk dispensers with ABHS in it are installed and maintained correctly.
Spontaneous Combustion Of Hand Sanitizer
According to the National Fire Protection Association (NFPA), USA, for hand sanitizer to spontaneously combust, it has to be exposed to extreme heat (over 700 degrees Fahrenheit).
A study published in May 2018 in the journal Temperature said that a car parked on a 95-degree day would have an average temperature of about 116 degrees.
It also said that the temperature of the dashboard may reach close to 160 degrees, which is much less than the 700 degrees necessary for spontaneous combustion.
However, hand sanitizer still presents fire safety concerns.
According to the association, "All of this said, hand sanitizer still presents fire safety concerns, especially when stored in bulk quantities."
"Theoretically, a bottle of sanitizer bursting into fire on its own in a hot car is extremely unlikely - if not impossible," India Today quoted renowned fire expert DK Shammi, who is also a fire advisor to the Government of India, as saying.
He, however, warned that in a specific scenario if a person, whose car is parked outdoors on a hot sunny day for a couple of hours with an open bottle of sanitizer on the dashboard, enters the car and before driving away, decides to light a cigarette, it is possible that the car may combust.
What Is Flashpoint?
According to NFPA, Flashpoint is a technical term used to characterize the propensity of a liquid to burn. It is defined as the temperature at which a liquid gives off enough vapour to become ignitible in the air.
At that temperature, however, an ignition source like a flame from a candle or a lighter is required for ignition to occur.
Reportedly, the flashpoint of alcohol in sanitizer is just 21°C.
The current daytime temperature in Delhi is double that. Therefore, if one leaves an open bottle of sanitizer, it will evaporate quickly into the atmosphere due to the heat.
"If the sanitizer bottle kept in a car is not airtight, the vapours will keep on accumulating inside the closed car and it will become like a gas chamber. Then all it will take to start a fire is a small spark which can be from the ignition or even horn," Shammi added.
Further, safety guidelines about sanitizers mention that it must be stored in a cool, well-ventilated place with the container tightly closed.
Also, Toronto Fire Service in their Official Twitter account talked about the issue.
1. Is it safe to leave hand sanitizer in a hot vehicle?
— Toronto Fire Service (@Toronto_Fire) May 26, 2020
Hand sanitizer wont spontaneously combust or explode if left in a hot vehicle. Containers should be kept upright and properly sealed to avoid leakage. Containers shouldn't be left in direct sunlight as an added precaution pic.twitter.com/4W1uerTTzg
Therefore, it is not advisable to leave an open bottle of sanitizer in the car on a hot sunny day. While a small bottle of hand sanitizer in one's car might not lead to spontaneous combustion, it would be wise to not store hand sanitizer in direct sunlight inside the car.
If you have any news that you believe needs to be fact-checked, please email us at factcheck@thelogicalindian.com or WhatsApp at 6364000343
Also Read: Fact Check: Are Hand Sanitizers Effective After Its Expiry Date?
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