Buy Alum Sulfate for 8000 Gal 48% Solution

  • Thread starter Thread starter obrien040362
  • Start date Start date
Click For Summary

Discussion Overview

The discussion revolves around calculating the amount of alum sulfate needed to create an 8000-gallon solution at a concentration of 48%. It involves mathematical reasoning related to solution preparation and density considerations.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant inquires about the quantity of alum sulfate required for the solution.
  • Another participant suggests determining the density of the 48% alum sulfate solution as a first step.
  • A participant expresses uncertainty about calculating the solution weight for both 25% NaOH and 48% aluminum sulfate.
  • There is a suggestion to use specific gravities to calculate the weight of the solution.
  • A later reply provides a method for calculating the weight of the 48% alum sulfate solution based on the specific gravity and includes adjustments for different forms of alum sulfate (anhydrous, octadecahydrate, hexadecahydrate).

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the calculation method, as there are multiple approaches suggested and some expressions of uncertainty regarding the calculations.

Contextual Notes

Participants mention specific gravities and ratios for different forms of alum sulfate, indicating that assumptions about density and solution composition are critical to the calculations, but these assumptions are not fully resolved.

obrien040362
Messages
7
Reaction score
0
How many pounds of alum sulfate do I need to buy to make 8000 gallons of 48% solution.
Thank you
 
Chemistry news on Phys.org
You do it the same way you did the 25% NaOH solution. You will need to determine the density of 48% alum sulfate first.
 
I did review that answer before I posted , but I don't know how to calculate the solution weight of 25% NaOh or 48% Aluminum Sulfate
 
Can you figure weight of solution with specific gravities?
 
obrien040362 said:
Can you figure weight of solution with specific gravities?

Yes. Multiply the weight of a gallon of water by the specific gravity of your want to be alum solution to get the weight of a gallon of 48% w/w alum sulfate. Multiply that by. 48 and multiply that answer by 8000.

That's how much anhydrous aluminum sulfate you will need to use. If you are purchasing the octadecahydrate, multiply that number by the ratio (666/342). If purchasing the hexadecahydrate multiply it by the ratio (648/342).
 
Last edited:

Similar threads

Potassium alum: how to prevent recrystallization in water?
  • · Replies 1 ·
Replies
1
Views
2K
Help, I have made a huge mistake with copper sulfate!
  • · Replies 11 ·
Replies
11
Views
5K
How Much Epsom Salt for a 15% Magnesium Sulfate Solution?
  • · Replies 2 ·
Replies
2
Views
2K
What Occurs When Copper is Completely Deposited in Copper Sulfate Electrolysis?
  • · Replies 3 ·
Replies
3
Views
2K
Reactivity Series: How to Understand Metal Reactions
  • · Replies 1 ·
Replies
1
Views
2K
Perfect Espresso Water Chemistry
  • · Replies 7 ·
Replies
7
Views
5K
Adding Nickel to Zinc Sulphate Solution
  • · Replies 2 ·
Replies
2
Views
2K
Roll forming question
  • · Replies 14 ·
Replies
14
Views
2K
Making Ferrous Sulfate - Have I succeeded?
  • · Replies 5 ·
Replies
5
Views
6K
How to convert Antimony Sulfate to Sb2O3?
  • · Replies 7 ·
Replies
7
Views
4K