Ammonium Sulfide at wbgen

Abhijit Pethe pethe at stanford.edu
Tue Mar 8 13:19:31 PST 2005


Hi Mary,

I plan on storing the material at SNF? I would probably bring in around
500ml of (NH4)2S solution which is typically available in aqueous
solution of 20-24% by wt. 

Abhijit

-----Original Message-----
From: Mary Tang [mailto:mtang at snf.stanford.edu] 
Sent: Tuesday, March 08, 2005 7:17 AM
To: Abhijit Pethe
Cc: specmat at snf.stanford.edu
Subject: Re: Ammonium Sulfide at wbgen

Hi Abhijit:

A few questions:

Do you plan on storing this at SNF?  How much do you plan to bring in?  
And how concentrated is the solution you plan to use (will you dilute 
it?)  And how much solution would you like to use?

Thanks,

Mary


Abhijit Pethe wrote:

> Hello,
>
>  
>
> I would like to study the effect of S-passivation on surfaces. For 
> this reason I want to use Ammonium Sulfide solution as a reagent. 
> Typical processing includes 20min dip in aqueous Ammonium Sulfide 
> solution ((NH4)2S) @ 50C followed by a water rinse. I would then like 
> to load these samples into the Innotec e-gun evaporator. I have 
> attached a MSDS for Ammonium Sulfide from Alfa Aesar with this email 
> for your reference.
>
>  
>
> Please let me know if this can be done and if there are any 
> precautions I need to follow.
>
>  
>
> Thanks
>
> Abhijit
>
>  
>


-- 
Mary X. Tang, Ph.D.
Stanford Nanofabrication Facility
CIS Room 136, Mail Code 4070
Stanford, CA  94305
(650)723-9980
mtang at stanford.edu
http://snf.stanford.edu





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