Colloidal Silver and Gold Forum
Production Techniques and Chemistry => Colloidal Gold Production => Topic started by: tony14 on March 07, 2019, 12:29:44 PM
-
Now venturing into colloidal gold. Kephra's 'quick colloidal gold' hard to do here due to finding the gold chloride.
There appears to be a range of trisodium citrate termed 'E331' food grade.
E331 (i) Monosodium citrate
E331 (ii) Disodium citrate
E331 (iii) Trisodium citrate
Looking at https://bit.ly/2ToL2YO (https://bit.ly/2ToL2YO) Is this ok?
thanks, tony
-
I used tri-sodium citrate. I think it is the most common variant.
-
@Kephra, in Electrolysis-I Gold process, you said Tri-sodium sitrate monohydrate to use, but i cant find it in my country anywhere, i only find TRI-SODIUM CITRATE DIHYDRATE which is the formula C6H5Na3O7.2H2O. Which has 294,10 g/mol molar weight.
Is it okay to use?
-
Yes, its ok.
-
thx
-
Now venturing into colloidal gold. Kephra's 'quick colloidal gold' hard to do here due to finding the gold chloride.
There appears to be a range of trisodium citrate termed 'E331' food grade.
E331 (i) Monosodium citrate
E331 (ii) Disodium citrate
E331 (iii) Trisodium citrate
Looking at https://bit.ly/2ToL2YO (https://bit.ly/2ToL2YO) Is this ok?
You can make it like I made it
https://www.cgcsforum.org/index.php?topic=5038.msg41640#msg41640
-
Will this work for colloidal gold? Thanks for your time.
https://www.amazon.ca/dp/B07P24Y4FR/ref=cm_sw_r_cp_apa_i_NSn5Eb4K0KAMZ
-
Yes, it's fine, but you will need to look up the molar weight of this, as it's sodium citrate dihydrate.
Molecular Formula: C6H9Na3O9
Average mass: 294.100 Da
-
Yes, it's fine, but you will need to look up the molar weight of this, as it's sodium citrate dihydrate.
Molecular Formula: C6H9Na3O9
Average mass: 294.100 Da
https://www.convertunits.com/molarmass/Na3C6H5O7.2H2O
Na3C6H5O7.2H2O molecular weight
Molar mass of Na3C6H5O7.2H2O = 294.09957 g/mol
Convert grams Na3C6H5O7.2H2O to moles or moles Na3C6H5O7.2H2O to grams
Molecular weight calculation:
22.98977*3 + 12.0107*6 + 1.00794*5 + 15.9994*7 + 2*(1.00794*2 + 15.9994)
Percent composition by element
Element Symbol Atomic Mass # of Atoms Mass Percent
Sodium Na 22.989770 3 23.451%
Hydrogen H 1.00794 9 3.084%
Carbon C 12.0107 6 24.503%
Oxygen O 15.9994 9 48.961%
Thanks for your time.