Could you please help me out at this reaction ?
Post new topic Reply to topic
   Chemical Community Forum Index : Chemistry forum
View previous topic :: View next topic  
Author Message
doctorx
Jr. Member
Jr. Member


Joined: 23 Dec 2018
Posts: 6
Reply with quoteFind all posts by doctorx

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
Back to top
View user's profileSend private message
ChenBeier
Distinguished Member
Distinguished Member


Joined: 27 Sep 2017
Posts: 264
Location: Berlin, Germany
Reply with quoteFind all posts by ChenBeier


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.
Back to top
View user's profileSend private message
doctorx
Jr. Member
Jr. Member


Joined: 23 Dec 2018
Posts: 6
Reply with quoteFind all posts by doctorx


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
Back to top
View user's profileSend private message
ChenBeier
Distinguished Member
Distinguished Member


Joined: 27 Sep 2017
Posts: 264
Location: Berlin, Germany
Reply with quoteFind all posts by ChenBeier


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!!!!!
Back to top
View user's profileSend private message
doctorx
Jr. Member
Jr. Member


Joined: 23 Dec 2018
Posts: 6
Reply with quoteFind all posts by doctorx


Thank you so much for your great help.

I really appreciate.
Back to top
View user's profileSend private message
ChenBeier
Distinguished Member
Distinguished Member


Joined: 27 Sep 2017
Posts: 264
Location: Berlin, Germany
Reply with quoteFind all posts by ChenBeier


You wellcome. By the way which country does it happen.
Back to top
View user's profileSend private message
doctorx
Jr. Member
Jr. Member


Joined: 23 Dec 2018
Posts: 6
Reply with quoteFind all posts by doctorx


Iran
It s an Islamic tradition
Back to top
View user's profileSend private message
ChenBeier
Distinguished Member
Distinguished Member


Joined: 27 Sep 2017
Posts: 264
Location: Berlin, Germany
Reply with quoteFind all posts by ChenBeier


Oh, I see. I think they should not give up the traditions, but use something else instead of arsenic.
Back to top
View user's profileSend private message
doctorx
Jr. Member
Jr. Member


Joined: 23 Dec 2018
Posts: 6
Reply with quoteFind all posts by doctorx


We as doctors recommend new Arsenic free products but they insist that Arsenic has good health effect for body !!!
We have to inform the superstitious people.
They believe inhaling that bad odor fights lung cancer.
Our health ministry also forbided Arsenic for cosmetic use.
Back to top
View user's profileSend private message
ChenBeier
Distinguished Member
Distinguished Member


Joined: 27 Sep 2017
Posts: 264
Location: Berlin, Germany
Reply with quoteFind all posts by ChenBeier


Arsenic compounds should not sold to normal people. Forced by authorities.
Back to top
View user's profileSend private message
doctorx
Jr. Member
Jr. Member


Joined: 23 Dec 2018
Posts: 6
Reply with quoteFind all posts by doctorx


of course
Back to top
View user's profileSend private message
sepetrified
Newbie
Newbie


Joined: 09 Jan 2019
Posts: 1
Reply with quoteFind all posts by sepetrified


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
Back to top
View user's profileSend private message
ChenBeier
Distinguished Member
Distinguished Member


Joined: 27 Sep 2017
Posts: 264
Location: Berlin, Germany
Reply with quoteFind all posts by ChenBeier


it was the starting post

Ca(HCO3)2 is not existing as a powder
Back to top
View user's profileSend private message
Display posts from previous:   
Post new topic Reply to topic
   Chemical Community Forum Index : Chemistry forum Page 1 of 1

 
Jump to:  

Chemical portal