oldlady Posted November 2, 2016 Report Share Posted November 2, 2016 today the brain is not working well. not that math is easy even when it is. truly stupid question. my glaze recipe totals 100 grams. i want to make 8000 grams. what do i multiply each amount by to get to 8000? Link to comment Share on other sites More sharing options...
AndreaB Posted November 2, 2016 Report Share Posted November 2, 2016 8000 / 100 = 80 Hope it comes out OK Link to comment Share on other sites More sharing options...
MatthewV Posted November 2, 2016 Report Share Posted November 2, 2016 That one is too easy. Here is a harder problem: I made an 8000 gram batch of glaze in a bucket. There was supposed to be 0.15% chrome oxide but I accidentally added 0.75%. Each bucket can hold a 10,000 gram batch of glaze. How many buckets do I need to buy to dilute the glaze back to having 0.15% chrome oxide? Explain your solution. Link to comment Share on other sites More sharing options...
123pop Posted November 2, 2016 Report Share Posted November 2, 2016 I think I got this one. 8000gms x .15% = 12gms chrome oxide (recipe) You put in 8000 x .75% = 60 gms You have 4x too much chrome oxide So you need to make up 32000gms (4X8000gms) of the original glaze minus the chrome oxide. Which with your original 8000gms = 40000 or 4 buckets of 10000gms . You need to buy 3 since you already have one Check answer. You will have 40000gms x .15% chrome = 60 gms chrome oxide. And you will have a lot of glaze. Why can I do this so much easier than throwing a pot??? Link to comment Share on other sites More sharing options...
MartinB Posted November 2, 2016 Report Share Posted November 2, 2016 That one is too easy. Here is a harder problem: I made an 8000 gram batch of glaze in a bucket. There was supposed to be 0.15% chrome oxide but I accidentally added 0.75%. Each bucket can hold a 10,000 gram batch of glaze. How many buckets do I need to buy to dilute the glaze back to having 0.15% chrome oxide? Explain your solution. Make up two more 8000g base glaze batches, giving you 24,000g in total, this should knock the 0.75% chrome down to 0.15% (you would have added 36g instead of 12g of chrome to the 8000g batch to make 0.75%) You'll need 3x10,000g buckets to contain the 24,000g EDIT: my %'s were wrong, listen to 123pop Link to comment Share on other sites More sharing options...
Pres Posted November 2, 2016 Report Share Posted November 2, 2016 My thinking, .15 was needed, you put in .75. so x(.15)=.75. or 5(.15)=.75. So you already have one bucket, you need 4 more. Now to really burst your bubble, is your glaze mixed with water yet? You have two options mix the whole thing in a large container, and then separate into barrels, or separate into 5 containers and add your material. not adding any additional chrome oxide. Last, and final option is to make up large batch dry mix well, mix the regular bucket, bag the other for future use. Test the H(&^ out of the batch you mix up to assure that all is right. best, Pres Link to comment Share on other sites More sharing options...
Denice Posted November 2, 2016 Report Share Posted November 2, 2016 First thing I would do is test it. It could be a interesting glaze. Denice Link to comment Share on other sites More sharing options...
oldlady Posted November 2, 2016 Author Report Share Posted November 2, 2016 andrea, now that i looked again, i see that my thank you post has not shown up. maybe last night was just a totally braindead event. i really did type a thank you for the obvious number you could see but i could not. even added a happy face. will try again. thank you, andrea, i have mixed it up. Link to comment Share on other sites More sharing options...
MatthewV Posted November 2, 2016 Report Share Posted November 2, 2016 I did test it... an ugly green. Also, I didn't purchase 3 buckets :-) Link to comment Share on other sites More sharing options...
High Bridge Pottery Posted November 2, 2016 Report Share Posted November 2, 2016 If you are diluting the glaze 4 times can you not switch it round and add 25% of the glaze with chrome oxide into a 75% amount base glaze. Maths could be wrong but it must be possible. Link to comment Share on other sites More sharing options...
MatthewV Posted November 3, 2016 Report Share Posted November 3, 2016 That is correct. Only one bucket needs to be purchased. Link to comment Share on other sites More sharing options...
Marcia Selsor Posted November 3, 2016 Report Share Posted November 3, 2016 Pres is right. Your need to add 4 more base quantities to get back to .15% in the entire mix one way or the other Link to comment Share on other sites More sharing options...
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