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General Forums => Generic Discussion => Topic started by: yoshiisland on October 05, 2019, 07:32:38 AM

Title: Questions dissipate acid
Post by: yoshiisland on October 05, 2019, 07:32:38 AM

In my room I have several electronic devices, if I use 70% trichloroacetic acid inside my room and if I use muriatic acid in the bathroom next to my room will these acids evaporate creating acidic air and causing corrosion on the boards of my electronic devices? any chemical engineers?
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: AWK on October 05, 2019, 08:20:10 AM
Toxic volatile compounds should not be used without adequate protection in a closed space.

Worry more about your health.
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: yoshiisland on October 05, 2019, 08:31:12 AM
What would be an enclosed space? the use of muriatic acid is with the bathroom door open but my electronics are in the other room and this room has no window but air goes over the wall
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: Enthalpy on October 11, 2019, 11:28:13 AM
Your lungs are much, much more at risk than electronic devices. They matter more, too.
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: yoshiisland on October 12, 2019, 08:07:46 AM
Does the muriatic acid solution contain too much concentration of hydrochloric acid? Is this concentration sufficient to generate corrosive vapors to electronics?
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: Borek on October 12, 2019, 08:58:58 AM
Does the muriatic acid solution contain too much concentration of hydrochloric acid?

Muriatic acid and hydrochloric acid are synonyms, so the question doesn't make much sense. Plus, muriatic acid is not something of a well defined concentration, which makes the answer even more problematic.

Quote
Is this concentration sufficient to generate corrosive vapors to electronics?

Hydrochloric acid is quite volatile, so even relatively low concentrations (like 3%) are dangerous to electronics if not stored separately.
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: yoshiisland on October 12, 2019, 09:14:58 AM

In my case my family wash the bathroom using muriatic acid, my room next to the bathroom, the muriatic acid in the bathroom will evaporate change the air in the house and that acidic air will enter the electronics initiating corrosion?
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: yoshiisland on October 15, 2019, 06:25:20 AM
Does the muriatic acid solution contain too much concentration of hydrochloric acid?

Muriatic acid and hydrochloric acid are synonyms, so the question doesn't make much sense. Plus, muriatic acid is not something of a well defined concentration, which makes the answer even more problematic.

Quote
Is this concentration sufficient to generate corrosive vapors to electronics?

Hydrochloric acid is quite volatile, so even relatively low concentrations (like 3%) are dangerous to electronics if not stored separately.
In my case my family wash the bathroom using muriatic acid, my room next to the bathroom, the muriatic acid in the bathroom will evaporate change the air in the house and that acidic air will enter the electronics initiating corrosion?
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: Borek on October 15, 2019, 09:19:36 AM
No simple answer, as it depends on many factors. Not impossible.
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: yoshiisland on October 15, 2019, 10:52:16 AM
which are factors? vapor acid muriat not dissipate before go electronic devices?
Title: Re: Questions vapor acid x corrosion electronics devices and metals
Post by: yoshiisland on October 16, 2019, 06:18:18 AM
No simple answer, as it depends on many factors. Not impossible.

which are factors? vapor acid muriat not dissipate before go electronic devices? you is chemical teacher?
Title: Questions dissipate acid
Post by: yoshiisland on October 18, 2019, 06:11:49 AM

In order to dissipate muriatic acid vapor before depositing on objects and equipment what needs to occur? Is it possible for me to do a test in my house to test if it has dissipation before harming?
Title: Re: Questions dissipate acid
Post by: billnotgatez on October 18, 2019, 11:28:48 AM
@yoshiisland
I have merged your posts from a previous thread since all these posts are about the question you initially entered.

Title: Re: Questions dissipate acid
Post by: billnotgatez on October 18, 2019, 12:06:54 PM
Have you tried GOOGLE on
Quote
Hydrogen Chloride Gas Detector

You might also read about Litmus on WIKI
https://en.wikipedia.org/wiki/Litmus (https://en.wikipedia.org/wiki/Litmus)
Title: Re: Questions dissipate acid
Post by: yoshiisland on October 26, 2019, 05:10:18 PM
What is the difference between hydrochloric acid and muriatic acid? do both release corrosive vapor to electronics and metals?
Title: Re: Questions dissipate acid
Post by: Borek on October 26, 2019, 05:13:29 PM
What is the difference between hydrochloric acid and muriatic acid?

You were already told that. Are you reading the answers provided, or do you just ask again and again?
Title: Re: Questions dissipate acid
Post by: AWK on October 27, 2019, 12:58:37 AM
What is the difference between hydrochloric acid and muriatic acid?

see Etymology in https://wiki2.org/en/Hydrochloric_acid
Title: Re: Questions dissipate acid
Post by: yoshiisland on October 30, 2019, 05:44:05 AM

Muriatic Acid evaporates when it is used, after it evaporates it falls on the electronic circuit board what will happen when I turn on the device? Will the steam on the board evaporate again?
Title: Re: Questions dissipate acid
Post by: Borek on October 30, 2019, 06:29:55 AM
Muriatic Acid evaporates when it is used, after it evaporates it falls on the electronic circuit board what will happen when I turn on the device? Will the steam on the board evaporate again?

Yes and no. HCl molecules will not just get adsorbed on the surface (those just adsorbed will be generally capable of leaving later, but these are very small minority). Most of the HCl molecules will directly react with whatever they sit on and corrode it. Some of the reaction products can decompose on heating, producing HCl back, some will not.
Title: Re: Questions dissipate acid
Post by: yoshiisland on October 30, 2019, 06:40:00 AM

Is the steam generated by the use of muriatic acid enough to stick to the circuit board and never come out gradually eroding the metals? Even in use with a heated appliance, is the steam on the circuit board?

electronic board has metails
Title: Re: Questions dissipate acid
Post by: Corribus on October 30, 2019, 07:54:13 AM
I'm not sure what you expect from us. Yes, HCl corrodes metals. Yes, HCl will probably corrode circuit boards. Yes HCl is volatile and yes the fumes are also corrosive. No, you shouldn't use HCl in a poorly ventilated space because it could damage your electronic equipment over time, or your lungs. That said, Yes, we do use HCl in chemistry labs, and Yes we often have computers and electronic equipment in labs. But labs are also designed with good ventilation. So No, it's not necessarily a comparable situation.

You are asking for a yes or no answer to a question that depends on a lot of factors, including how much HCl you are using, the concentration, the frequency, the amount and type of circuitry boards you have and where they're stored, and the air-movement characteristics of the space you're working in. Impossible to answer your question in a black or white way probably even if we knew all these details.

Is the risk to your boards in the short term high? Probably not. But if you don't want your circuit boards degraded, or some kind of chronic long disease, don't use HCl inside your home in an unventilated space. That's the only way to be sure and I'm not sure what else any of us can add.
Title: Re: Questions dissipate acid
Post by: yoshiisland on October 30, 2019, 07:59:03 AM

How do I find out if it is well ventilated? my room has appliances but it has no window
Title: Re: Questions dissipate acid
Post by: Corribus on October 30, 2019, 09:31:46 AM
As mentioned before, that's not well-ventilated from a chemical handling perspective. Chemical labs are designed to have short air cycling times because there are fume hoods. Even if you're not actually working in a fume hood, because fume hoods are constantly drawing air from the room, the air is continually cycled and replaced by clean outside air. In your house, air is primarily moved by diffusion/Brownian motion and your HVAC system if it is turned on. So while air does cycle, it's much slower than in a professional laboratory. Particularly when there are barriers that slow the diffusion of air (e.g., walls with no windows).

Anyway, that's neither here nor there. Point is, it's impossible to know what is "good enough" ventilation because as mentioned above there are too many factors involved, not the least of which is "how much corrosion is acceptable". Sorry, your question just doesn't have a definitive answer, particularly without hard data on air replacement cycles, where equipment is located, and so forth.

As with most things: if you don't want any risk, don't do the risky behavior. If you must do the risky behavior, mitigate it the best you can but be prepared to live with the consequences.
Title: Re: Questions dissipate acid
Post by: Borek on October 30, 2019, 02:47:00 PM
And with these two great answers from Corribus I am locking the thread, as it has definitely run its course.