Measure KOH % with a hydrometer

[BoyntonStu]

http://www.ashtachemicals.com/products/kohchem.htm

20* C (68*F)

28% solution

1.26712 Specific Gravity

10.54 lb/gallon

A battery hydrometer should be OK to measure the SG.

BoyntonStu

[Roland Jacques]

http://www.ashtachemicals.com/products/kohchem.htm

20* C (68*F)

28% solution

1.26712 Specific Gravity

10.54 lb/gallon

A battery hydrometer should be OK to measure the SG.

BoyntonStu

O Rially Auto Parts has a real nice hydrometer, in this range, with the actual numbers . It was the best one i could find

[BoyntonStu]

O Rially Auto Parts has a real nice hydrometer, in this range, with the actual numbers . It was the best one i could find

Link?

Photo?

Thanks,

BoyntonStu

[HHO BLASTER]

84-475 BATTERY HYDROMETER
Electrical Wire




"This float-type device is used to measure the concentration of sulfuric acid (Specific Gravity) of battery electrolyte (""battery acid""). From this reading you can easily and accurately determine a non-sealed battery's State-of-Charge. "


Price $5.38

List price $8.49 ~ You save $3.10

http://www.boatfix.com/shop3/store/v...idProduct=3133

[Q-Hack!]

Unfortunately most of your typical batter hydrometers only work between the range of 1.000 - 1.300 specific gravity. Home brew beer makers are even more restrictive .999 - 1.050 http://www.alcoholcontrols.com/bewihy.html So, if you want to go with a truly high saturation, it make it expensive to test accurately.

I suspect that unless you have a lucky find in the automotive world that you will have to resort to a digital version. This one works between 0.000 - 2.000 http://www.directindustry.com/prod/s...96-354418.html

For many years scientists would use a set of specific gravity hydrometers... if you have money to burn... https://www1.fishersci.com/wps/porta...=y&fromSearch=

[BoyntonStu]

Unfortunately most of your typical batter hydrometers only work between the range of 1.000 - 1.300 specific gravity. Home brew beer makers are even more restrictive .999 - 1.050 http://www.alcoholcontrols.com/bewihy.html So, if you want to go with a truly high saturation, it make it expensive to test accurately.

I suspect that unless you have a lucky find in the automotive world that you will have to resort to a digital version. This one works between 0.000 - 2.000 http://www.directindustry.com/prod/s...96-354418.html

For many years scientists would use a set of specific gravity hydrometers... if you have money to burn... https://www1.fishersci.com/wps/porta...=y&fromSearch=

1.26712 Specific Gravity = 28%

Unfortunately Fortunately most of your typical battery hydrometers only work between the range of 1.000 - 1.300 specific gravity.

32% =1.30913 which is higher than we want or need.

BoyntonStu

[BoyntonStu]

Just $3.79 at Advanced Auto.

Works like a charm.



It takes much more KOH than you think to get to 28%.


BoyntonStu

[HHO BLASTER]

Just $3.79 at Advanced Auto.

Works like a charm.



It takes much more KOH than you think to get to 28%.


BoyntonStu

How accurate do you think that meter level label is?

and how can you check it

[BoyntonStu]

It is like buying a thermometer from a store. See if they match.

The hydrometers cost $3.79 each.

Buy 2 and check one against the other.

It would be better if it measured 1.000.

You could check distilled water at 1.000.

OTOH Do you trust mass production and robotically placed labels, etc.?

BoyntonStu