Search found 200 matches

by Silver_Is_Money
Thu Dec 24, 2020 12:10 pm
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

Using my HCl and H2SO4 blends calculator, and the Winchesters ratio as provided by WallyBrew above, and my best guesses as to the likely (or nominal) analyticals for the two concentrated acids, I've derived the following: The H2SO4 components contribution to acid strength is nominally ~1.84223 mEq/m...
by Silver_Is_Money
Sun Dec 20, 2020 4:04 am
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

As you have now done all the calculations you have probably surmised that the strength of AMS/CRS appears quite arbitrary and would be much better if it was 4meq/mL to make for easy calculation but then you wouldn't be able to make it by throwing 20 winchesters of concentrated sulphuric and 60 winc...
by Silver_Is_Money
Sat Dec 19, 2020 4:18 pm
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

I should add that for my acid blending spreadsheet the analytical parameters for the concentrated HCl and H2SO4 are also variable, such that any "initial" concentrations of these two building blocks can be input. Simply vary the "Acid Solutions Percent" and "Acid Solutions Density" input data. The b...
by Silver_Is_Money
Sat Dec 19, 2020 3:23 pm
Forum: Brewing Liquor
Topic: Bicarbonate HC03
Replies: 22
Views: 6563

Re: Bicarbonate HC03

The Eq weight of the HCO3- ion is 61.01684, and the Eq weight of CaCO3 is 50.04345, so Alkalinity as CaCO3 = 50.04345/61.01684 x Bicarbonate.

Round it to Alkalinity ~= 0.82 x Bicarb. The flip-side is that Bicarb ~= 1.22 x Alkalinity.
by Silver_Is_Money
Fri Dec 18, 2020 3:14 pm
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

I made up a spreadsheet calculator that is capable of computing various blends of HCl and H2SO4. As it is (or as it defaults) upon download it is set up to create an acid blend that delivers the very same 3.66 mEq/mL of acid strength as I presume is likely for AMS/CRS, but it is set up to deliver eq...
by Silver_Is_Money
Fri Dec 18, 2020 1:59 am
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

Why would you recreate AMS rather than using a bespoke mix of hydrochloric and sulphuric acids to get to whatever mineral balance you are seeking? I use AMS because it is readily available and easy to use, but if I couldn't obtain it and could "only" get the two acids separately, I think I'd use th...
by Silver_Is_Money
Fri Dec 18, 2020 12:49 am
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

Highly tentatively I have it calculated at these two acid quantities, made up to 1 Liter of total overall volume with distilled or DI water: 151.4 mL of 37.2% Hydrochloric Acid 49.9 mL of 98% Sulfuric Acid Would someone check my work to verify this please. If nominally correct, it may prove easier t...
by Silver_Is_Money
Thu Dec 17, 2020 3:34 pm
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

You can back calculate the concentrations with the information from the Murphyandson website. 35 mL in 1 hL reduces alkalinity by 64 ppm CaCO3 per Litre and adds 22.5 ppm Chloride and 31 ppm Sulphate respectively. That means 1 mL removes approximately 183 ppm alkalinity (as CaCO3) and adds 64 ppm C...
by Silver_Is_Money
Thu Dec 17, 2020 3:28 pm
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

guypettigrew wrote:
Wed Dec 16, 2020 10:19 pm
AMS and CRS are the same. The SG at 13.6°C (it's chilly in my brewery tonight!) is 1.086.

With luck, someone on here may be able to give you the proportions of sulphuric and hydrochloric acids used to make CRS. Or perhaps it's a secret!

Guy
Thanks much!
by Silver_Is_Money
Wed Dec 16, 2020 9:37 pm
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

As an aside, are AMS and CRS the exact same thing, or is there a slight difference in the acid blend or the acid strength? We can't buy it in the States, so I'm considering nominally cloning it for personal use.
by Silver_Is_Money
Wed Dec 16, 2020 9:33 pm
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Re: Density Inquiry for AMS (CRS)

guypettigrew wrote:
Wed Dec 16, 2020 7:37 pm
Density or specific gravity? I can drop my hydrometer into some, if knowing the SG would help you.

Why do you want to know?

Guy
Hydrometer SG will work. I know how to convert SG into density. Thanks!!!
by Silver_Is_Money
Wed Dec 16, 2020 7:07 pm
Forum: Brewing Liquor
Topic: Density Inquiry for AMS (CRS)
Replies: 20
Views: 6067

Density Inquiry for AMS (CRS)

Does anyone know the density of AMS/CRS acid blend?
by Silver_Is_Money
Sat Nov 14, 2020 1:37 pm
Forum: Brewing Liquor
Topic: P.h before mashing in
Replies: 18
Views: 5083

Re: P.h before mashing in

Residual is a word meaning that which remains after the greater bulk has gone and in this respect it is that which remains after neutralising the amount of alkalinity that one does not want and has nothing whatsoever to do with Kolbach and his calculation. In this respect the residual alkalinity is...
by Silver_Is_Money
Sat Nov 14, 2020 12:16 pm
Forum: Brewing Liquor
Topic: P.h before mashing in
Replies: 18
Views: 5083

Re: P.h before mashing in

RA, or Residual Alkalinity, is a contrived value that rests solely upon the conception of 3.5 mEq's of Calcium neutralizing 1 mEq of Alkalinity (as CaCO3). This as determined in the 1930's by Kolbach. Very recent research by Barth and Zaman has totally debunked this, as their research indicates that...
by Silver_Is_Money
Sat Nov 14, 2020 11:42 am
Forum: Brewing Liquor
Topic: P.h before mashing in
Replies: 18
Views: 5083

Re: P.h before mashing in

2740/183 ~= 15 mL (rounded) of CRS to hit ~pH 4.3

Again, add ~90% of 15 mL to hit ~ pH 5.4