Do you know how to configure magnesium sulfate heptahydrate solution?

How to configure magnesium sulfate heptahydrate solution? Magnesium sulfate heptahydrate is a colorless or odorless colorless or white crystal, granule or powder. We all know that any solution needs to be configured, so let's take a look at the configuration of magnesium sulfate heptahydrate solution. What is the standard like:

1. Preparation of standard solution of magnesium sulfate heptahydrate: First, weigh 4.3977MgSO4·7H2O, dissolve it in water, transfer it to a 1L volumetric flask, and shake it to a constant volume to obtain a solution containing 1mg/mL of magnesium.

2. This magnesium-containing solution does not need to be calibrated. Generally, 4.40g can be weighed.

3. To calibrate the volumetric flask, the requirement is a little higher. It is prepared with reference magnesium sulfate: burn the magnesium sulfate at a high temperature of 800 degrees for 1 hour, cool it and weigh it, let it dissolve in 100mL (1+100) sulfuric acid solution, transfer it Transfer to a 1L volumetric flask, shake to constant volume, and obtain a solution containing 1 mg/mL magnesium. 

The above is the preparation standard of magnesium sulfate heptahydrate solution. I hope the above content will give you a better understanding of magnesium sulfate heptahydrate.