Could you please help me out at this reaction ?
Moderators: Xen, expert, ChenBeier
Could you please help me out at this reaction ?
As2S3 +Ca(HCO3)2 + H2O = ?????
As2S3 and Ca(HCO3)2 are as mixed powders and are going to solve in water
Thank you
As2S3 and Ca(HCO3)2 are as mixed powders and are going to solve in water
Thank you
- ChenBeier
- Distinguished Member
- Posts: 1578
- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
Arsenic sulfide is not solouble and Calciumhydrogencarbonate is not existing as a powder. It can only made by adding carbondioxide in excess to a solution of calciumcarbonate or calcium hydroxide.
So there will be not much reaction.
Therotically calcium thioarsenite Ca3(AsSxOy)2 x =0,1,2,3; y = 3-x can be a result.
So there will be not much reaction.
Therotically calcium thioarsenite Ca3(AsSxOy)2 x =0,1,2,3; y = 3-x can be a result.
Thank you so much
Actually I made a mistake
It is CaCO3 (Lime) not Ca(HCO3)2.
In fact it is a big health issue in my region
I am a doctor and in my region this compond is widely used.
It consist of 6 part CaCO3 and one part As2S3 powder mixed together.
at time of use ( for body hair removal ) they add water and make a paste of it and put it on skin.
The powder mixture has no odor at all but when water added a strong odor of H2S fills the space, so I think in presence of CaCO3, air CO2 and H2O , As2S3 may has a reaction resulting in H2S production and probably some arsenic component soluble in water which can be toxic.
I need to know what is the reaction and end products as well as the balanced equation
your help would be great for a lot of people.
Thanks again
Actually I made a mistake
It is CaCO3 (Lime) not Ca(HCO3)2.
In fact it is a big health issue in my region
I am a doctor and in my region this compond is widely used.
It consist of 6 part CaCO3 and one part As2S3 powder mixed together.
at time of use ( for body hair removal ) they add water and make a paste of it and put it on skin.
The powder mixture has no odor at all but when water added a strong odor of H2S fills the space, so I think in presence of CaCO3, air CO2 and H2O , As2S3 may has a reaction resulting in H2S production and probably some arsenic component soluble in water which can be toxic.
I need to know what is the reaction and end products as well as the balanced equation
your help would be great for a lot of people.
Thanks again
- ChenBeier
- Distinguished Member
- Posts: 1578
- Joined: Wed Sep 27, 2017 7:25 am
- Location: Berlin, Germany
The problem is that arsenic compound is used. It will be the root course.
https://en.wikipedia.org/wiki/Arsenic_trisulfide
The result of the reaction I had given
Therotically calcium thioarsenite Ca3(AsSxOy)2 x =0,1,2,3; y = 3-x can be a result.
3 CaCO3 + As2S3 => Ca3(As2S3O3) + 3 CO2
Sulfur and Oxygen can be exchanged what guides to the smell of H2S by water
Ca3(AsS3)2 until Ca(AsO3)2 is possible.
The arsenic compunds with oxygen are more solouble and will penetrate through the skin and poisson the body.
Stopp using arsenic compounds for cosmetic purpose!!!!!
https://en.wikipedia.org/wiki/Arsenic_trisulfide
The result of the reaction I had given
Therotically calcium thioarsenite Ca3(AsSxOy)2 x =0,1,2,3; y = 3-x can be a result.
3 CaCO3 + As2S3 => Ca3(As2S3O3) + 3 CO2
Sulfur and Oxygen can be exchanged what guides to the smell of H2S by water
Ca3(AsS3)2 until Ca(AsO3)2 is possible.
The arsenic compunds with oxygen are more solouble and will penetrate through the skin and poisson the body.
Stopp using arsenic compounds for cosmetic purpose!!!!!
-
- Newbie
- Posts: 1
- Joined: Wed Jan 09, 2019 8:47 am
As2S3 and Ca(HCO3)2 old post about the SizeGenetics are as mixed powders and are going to solve in water
Last edited by sepetrified on Sun Jan 20, 2019 9:01 am, edited 3 times in total.