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The second chapter focuses on chromic acid end-uses, the third one gives summary on a number of patents.
Chromic acid was prepared by chromium(III) oxide, concentrated sulfuric acid, and water solution at the weight ratios of 29:29:42.
Walkley A, Black IA (1934) An examination of the Degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method.
5-75[degrees]C repellency Water Silicate with a particle Particle size 1000 repellent size of 8-20 nm and silicates on water repellency Water Silicate with a particle Particle size 1000 repellent size of 20-100 nm and silicates on water repellency Water Water dispersed acrylic Control water 4000 repellent polymer ingress by binding to the surface of the wood Biocide DCOIT Known to 1000 control mold and prevent biological discoloration Positive Chromic acid Known to 30000 control control surface discoloration Negative Untreated Baseline for NA controls checking and discoloration Table 2--Vacuum and Pressure Conditions Used to Impregnate Southern Yellow Pine Sapwood with Various Compounds Cycle Time (min) Pressure/Vacuum Initial vacuum 5 25 mmHg Pressure 10 150 psi Final vacuum 5 25 mmHg
Typical CCA formulations are commonly prepared by first dissolving chromic acid in water and then adding copper oxide and arsenic acid as solids to the chromic acid solution.
They include cyanide, chromic acid and nickel sulphate -all potentially lethal if released into the atmosphere.
Do not confuse Alodine with AMS-M-3171, Type VI, chromic acid brush-on treatment, which is used on magnesium.
Among the chemicals used are sodium cyanide, potassium cyanide, chromic acid and sodium dichromate.
Gauthier explains that the chromic acid the company uses is a hazardous chemical.
Current practice calls for the parts to be plated with zinc, and then dipped in a chromic acid solution.
19) investigated thermal aging of double cantilever beam (DCB) specimens of FM-5 adhesive bonded to chromic acid anodized (CAA) Ti-6A1-4V.
Hundreds of plastic jerry cans were shipped out to East Africa from Teesside containing mixed chromic acid and arsenic.
Initial OC content of each [is less than] 53 [micro]m sample was determined by a modified chromic acid digestion method (Heanes 1984).
Her eight-week placement with Shipley Europe was to investigate using silver as an alternative to chromic acid for plating metal into plastic.