Do these substances emit formaldehyde gas when heated?

In summary, the conversation discusses the potential release of formaldehyde gas from two substances, cyclomethicone and glyoxylic acid, when subjected to heat from a hair straightener or hairdryer. It is mentioned that cyclomethicone is commonly used in hair products and would not be used if it emitted formaldehyde, while glyoxylic acid is known to have an unpleasant odor and can cause irritation. The person who asked the question may have had a reaction to these substances and is seeking clarification on their potential for releasing formaldehyde. It is also noted that a quick internet search can provide more information on these compounds.
  • #1
lk0306
1
0
Hey there,

Trying to confirm whether or not these substances emit formaldehyde gas when subject to heat of hair straightener and hairdryers. Both were ingredients in a keratin treatment i used at home and i had a crazy reaction (irritated skin, eyes, hair, nose and lungs) in the process of heating in the application process.

- Cyclomethicone
- Glyoxylic acid
 
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  • #2
Cyclomethicone - looking at the formula I'd say it was somewhat unlikely. It is in widespread use in hair products, deodorants, skin care products (and some other products as well) and it would not be used in hair products if a hairdrier caused it to release formaldehyde.

Glyoxylic acid is reported as having an obnoxious odour, and it can be an eye, skin and respiratory irritant - it is a weak acid, so that is to be expected.

Why did you mention formaldehyde anyway? Smell?

Given that there would likely be only small amounts of these in any hair treatment, why did you ask about this pair in particular?

I got the info within seconds using google, incidentally. It was easy to find.

And the above is just my opinion. I am not an expert on these compounds, just a normal chemist.
 
  • Like
Likes DrClaude
  • #3
I agree with DrJohn.

It is possible you have allergies. The compounds appear thermostable so it's unlikely to be formaldehyde unless your heat gun belongs to Area 51.
 

FAQ: Do these substances emit formaldehyde gas when heated?

Do all organic materials emit formaldehyde when heated?

No, not all organic materials emit formaldehyde when heated. The emission depends on the chemical composition of the substance. Materials containing formaldehyde-based resins or specific organic compounds are more likely to release formaldehyde gas upon heating.

At what temperature do substances start emitting formaldehyde gas?

The temperature at which substances start emitting formaldehyde can vary widely depending on the material. Generally, formaldehyde can start to be released at temperatures as low as 100°C (212°F), but significant emissions are more likely to occur at higher temperatures.

What are common household items that emit formaldehyde when heated?

Common household items that can emit formaldehyde when heated include particleboard, plywood, and other pressed wood products containing formaldehyde-based resins. Additionally, some textiles, paints, and varnishes may release formaldehyde when subjected to high temperatures.

How can I test if a substance emits formaldehyde gas when heated?

Testing for formaldehyde emissions typically involves using specialized equipment such as a formaldehyde detector or air sampler. These devices can measure the concentration of formaldehyde gas in the air. Laboratory analysis may also be conducted for more precise measurements.

Is formaldehyde emission from heated substances harmful to health?

Yes, formaldehyde emission can be harmful to health. Formaldehyde is a known irritant and carcinogen. Exposure can cause respiratory issues, eye irritation, and other health problems. Prolonged or high-level exposure increases the risk of more serious health effects, including cancer.

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