Polyanionic Cellulose PAC LV Risol-dispac
Drispac equivalent test procedure and result
Deionized Water Viscosity Test:
Slowly add 1,28 grams of Drispac plus SL to 280 ml deionized water. Stir for 5 minutes on a multimixer and let sit at room temperature (77 F) two hours. Check rheologies using FANN 35 viscometer with a 1.0 spring.
COA specification: Apparent Viscosity (AP) – 17 Maximum.
AP= 600 rpm reading / 2.
Test result: 7cp
Saturated Salt Water Test:
Reagent: Sodium Chloride – ACS reagent grade
Prepare the saturated saltwater solution by adding 40% sodium chloride to deionized water and stirring for 30 minutes at approximately 12000 rpm. Allow the solution to roll overnight to obtain complete saturation.
Slowly add 2,0 grams of Drispac plus SL to 280 ml (336 grams) saturated NaCl salt water. Stir 20 minutes on a multimixer, then let sit at room temperature (77 F) for two hours. Check rheologies using a FANN 35 viscometer with a 1.0 spring.
COA specification: Apparent Viscosity (AP) – 30 Maximum.
Test result: 12cp
Fluid Loss Test:
Prepare a bentonite solution using tap water and 10 ppb Aguagel Gold bentonite. Stir for 20 minutes, then let sit overnight. Filter the solution through a 200 mesh screen. Pour into 280 ml (284 grams) aliquots and add 9 grams KCl, 6 grams sea salt and 8,4 grams rev dust. Stir 5 minutes after each material addition. Adjust pH to 9-9,5 using a sodium hydroxide solution. While stirring at approximately 8,000 rpm, slowly add 0,6 grams Drispac plus SL to the solution. Stir for 20 minutes on a multimixer. Cap solution and let sit overnight at room temperature. Stir solution for 5 minutes and pour immediately into an API room temperature fluid loss apparatus. Apply 100 psi pressure and measure filtrate after 30 minutes.
No COA Specification: (if we had it should be < 30 ml).
Test result: FL=21ml; after 100 deg.C/16h, FL=30ml
Output: This material is suitable for use.
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