Salifert indicator

(That's water to the rest of us!) Beer is about 95% water, so if you want to discuss water treatment, filtering etc this is the place to do it!
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guypettigrew
Even further under the Table
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Salifert indicator

Post by guypettigrew » Tue Apr 02, 2019 10:48 am

Does anyone know what the indicator used in the Salifert test kit is? I seem to be using it faster than the KH reagent!

If it's possible to buy some separately that would be great.

Thanks.

Guy

WallyBrew
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Re: Salifert indicator

Post by WallyBrew » Tue Apr 02, 2019 11:42 am

Best of luck trying to find a source for it ready to go, but it is made as follows:

Mixed bromocresol green-methyl red indicator solution: Use either the aqueous(1) or alcoholic(2) solution:
1) Dissolve 100 mg bromocresol green sodium salt and 20 mg methyl red sodium salt in 100 mL distilled water.
2) Dissolve 100 mg bromocresol green and 20 mg methyl red in 100 mL 95% ethyl alcohol or isopropyl alcohol.

guypettigrew
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Re: Salifert indicator

Post by guypettigrew » Tue Apr 02, 2019 12:44 pm

Thanks WB

Ah, those names--takes me back to my lab days!!

Probably easier just to buy a new Salifert kit when the indicator runs out.

Guy

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