Nitrocellulos Revisted - Hexanitrate

Power Labs left a nifty guild on how to make nitrocellulose, and here I'm writing some scaled calculations that may prove useful later.
For the initial ingredients:
98% Concentrated Sulphuric Acid (H₂SO₄)(l)
70% Concentrated Nitric Acid (HNO₃₎(aq)
Pure Cotton (90% Cellulose, (C₆H₁₀O₅)(s)
Acetone (CH₃COCH₃)(l)
Sodium Bicarbonate (NaHCO₃)(s)
Distilled Water
Diphenylamine (C₁₂H₁₁N)(s)

Now, to create the hexanitrate, Powerlabs indicates that you need 5ml acid mixture for every .5 g of cotton. So, for my purposes, 10ml Acid mixture will nitrate 1g of cotton. Hexanitrate uses 35% HNO3 / 65% H2SO4 (by volume) as the acid mixture.

To keep this simple, the acid + cotton mixture is:
1g Cotton
3.5ml HNO₃ (98% Concentration)
6.5ml H₂So₄ (70% Concentration)

After the desired amount of Acid mixture and cotton is added, the solution must nitrate for 10 minutes never exceeding the temperature of 70^o Celsius otherwise the solution will have 'a runaway nitration'. After the nitration, the cotton is washed in Sodium Bicarbonate, then in distilled water until the water used to wash is neutral. During the third wash, Diphenylamine should be added to get rid of the rest of the acidic content in the hexanitrate. When the water used to wash the Hexanitrate is neutral, take the hexanitrate and dissolve it in Acetone. After the acetone vaporizes, the Hexanitrate should be stored underneath water untill it is ready to be used.

Chemical estimate for one Fuel Grain:
20g Cotton
70ml HNO₃ (98% Concentration)
130ml H₂So₄ (70% Concentration)
2ml Diphenylamine (C₁₂H₁₁N)
400ml Acetone (CH₃COCH₃)(l)
400ml Sodium Bicarbonate (NaHCO₃)(s)
2 liters Distilled Water

Source: PowerLabs