The pH of 10% Nu-Lure + 5% sodium tetraborate
In this work, four wood protection systems were developed based on the dual vacuum-impregnation of wood with combinations of alum and other low-cost chemicals, namely sodium hydroxide, ammonia, magnesium chloride, and sodium tetraborate
. The aim of the research was to assess whether dimensional stability and resistance of the treated wood to microbial attack and fire was comparable to that of wood treated with a hydrophobic chromated copper arsenate preservative (CCA-wax).
Block, The Crystal Structure of Sodium Tetraborate
, Acta Cryst.
Borate introduction to the liquor cycle used addition of sodium tetraborate
pentahydrate to the black liquor mixing tank initially and then to the green liquor surge tank to obtain a maximum B/Na weight ratio of 0.03.
The coated particles were then buffered at pH 9.0 and stabilized by the sequential addition of sodium tetraborate
(50 mmol/L), sodium chloride (150 mmol/L), bovine serum albumin (5 g/L), sodium azide (0.9 g/L), and Tween 20 (2 mL/L).
It also can detect certain salts, such as sodium tetraborate
, as evidence of water in the oil that may have flashed off from the heat of the engine, said Wilson.
Reagent grade CH3COOH, HCl (37%) and NH4CH3COO, KCl , NaCH3COO, sodium tetraborate
, sodium bicarbonate, sodium carbonate, NH4Cl, ammonium solution, oxalic acid, sodium oxalate, citiric acid sodium citrate were purchased from E-Merck, Germany.
Merck Germany) sodium acetate potassium chloride boric acid ammonium acetate sodium bicarbonate sodium tetraborate
sodium carbonate ammonium chloride and ammonia(25%) (Merck Germany) were used.