Homebrewers Association | AHA Forum

General Category => General Homebrew Discussion => Topic started by: Wort-H.O.G. on December 23, 2013, 12:56:05 AM

Title: ml to gram conversion for lactic acid
Post by: Wort-H.O.G. on December 23, 2013, 12:56:05 AM
Anyone know density of lactic acid to correctly convert ml to grams?
Title: Re: ml to gram conversion for lactic acid
Post by: fmader on December 23, 2013, 01:21:05 AM
This site has it listed at 1.206 g/mL at 25 degrees celsius.

http://www.chemicalbook.com/ChemicalProductProperty_EN_CB1138319.htm (http://www.chemicalbook.com/ChemicalProductProperty_EN_CB1138319.htm)
Title: Re: ml to gram conversion for lactic acid
Post by: erockrph on December 23, 2013, 02:40:43 AM
Keep in mind that this value is for pure lactic acid. You will have to adjust for concentration.

Sent from my XT1080 using Tapatalk

Title: Re: ml to gram conversion for lactic acid
Post by: Wort-H.O.G. on December 23, 2013, 09:32:43 AM
Keep in mind that this value is for pure lactic acid. You will have to adjust for concentration.

Sent from my XT1080 using Tapatalk


right you are sir.i ordered a 10ML graduated cylinder and will run a little weights and measurement exercise on 88% lactic acid.  :o
Title: Re: ml to gram conversion for lactic acid
Post by: HoosierBrew on December 23, 2013, 01:11:27 PM
This MSDS sheet shows 88% lactic acid as having a SG of 1.21 @ 25C.

http://www.adm.com/en-US/worldwide/australia/Documents/Lactic%20Acid%20AU.pdf
Title: Re: ml to gram conversion for lactic acid
Post by: Wort-H.O.G. on December 23, 2013, 03:37:52 PM
This MSDS sheet shows 88% lactic acid as having a SG of 1.21 @ 25C.

http://www.adm.com/en-US/worldwide/australia/Documents/Lactic%20Acid%20AU.pdf

so if understand correctly, distilled water should have a 1:1 ratio ml/gr and 88% lactic acid would be 1:1.21 ml/gr?
Title: Re: ml to gram conversion for lactic acid
Post by: HoosierBrew on December 23, 2013, 03:50:03 PM
That has been my understanding.  Maybe one of the lab-type people here can verify.
Title: Re: ml to gram conversion for lactic acid
Post by: tomsawyer on December 23, 2013, 11:32:02 PM
Yes that's right.
Title: Re: ml to gram conversion for lactic acid
Post by: Wort-H.O.G. on December 25, 2013, 01:05:37 PM
I got my 10ml graduated cylinder and used on my calibrated gram scale . Spot on, 1ml 88% lactic acid = 1.21 grams .

It's always tricky business when using acid to control wort ph, so I'm a little more comfortable with this more precise way to measure out the lactic acid additions that brunwater calculates.

Thanks for the info.


Sent from my iPad using Tapatalk (http://tapatalk.com/m?id=1)