Sodium Dichromate for cleaning glassware
- Labbie
- Posts: 3259
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: Sodium Dichromate for cleaning glassware
Oxalic acid ONE OF THE BEST, my first port of call
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
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- Posts: 525
- Joined: 15 Aug 2011, 10:48
- Job Title: Lab Tech
- School: NDSC
- Suburb: west gippsland
- State/Location: VIC
Re: Sodium Dichromate for cleaning glassware
Napisan ingredients:- 'disodium carbonate, compound with hydrogen peroxide (2:3) ≥10 - ≤30 15630-89-4
Reaction product of Benzenesulfonic acid, 4-C10-13-sec-alkyl derivs. and
Benzenesulfonic acid, 4-methyl- and sodium hydroxide' from the SDS.
It may need a risk assessment for your lab techs, but it is ok down the sink.
Reaction product of Benzenesulfonic acid, 4-C10-13-sec-alkyl derivs. and
Benzenesulfonic acid, 4-methyl- and sodium hydroxide' from the SDS.
It may need a risk assessment for your lab techs, but it is ok down the sink.
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- Posts: 232
- Joined: 01 Aug 2017, 12:19
- Job Title: Laboratory technician
- School: College
- State/Location: NSW
Re: Sodium Dichromate for cleaning glassware
I use 36% HCl on glassware. Obviously, I use the fume cupboard and PPE. Leave to soak overnight and voila! Usually gets anything off. I return the HCl to a stock bottle for for future use - it lasts for ages.
- Anna Z
- Posts: 275
- Joined: 16 Feb 2021, 14:39
- Job Title: Lab Manager
- School: DET Secondary School
- State/Location: VIC
Re: Sodium Dichromate for cleaning glassware
I use 10% HCl, soak for a few days and off you go.