Dibutyl phosphoric acid
WebFeb 8, 2024 · Currently, in the spent nuclear fuel (SNF) reprocessing, an extraction method is used for recovering U and Pu (Purex process) using tri-n-butyl phosphate (TBP), which has a high extraction ability with respect … WebPhosphoric acid, butyl ester, sodium salt EC Number: 258-380-0 EC Name: Phosphoric acid, butyl ester, sodium salt CAS Number: 53126-67-3 ... Sodium dibutyl phosphate …
Dibutyl phosphoric acid
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WebPhosphoric acid, dibutyl ester 107-66-4 1 - 5 * Formaldehyde 50-00-0 < 0.5 * *The exact percentage (concentration) of composition has been withheld as a trade secret. 4. FIRST AID MEASURES Description of first aid measures General Advice Show this safety data sheet to the doctor in attendance. Eye Contact Immediately flush with plenty of water ... WebFeb 15, 2007 · Highly enriched dibutyl phosphoric acid, a relatively strong acid with a pKa (acid dissociation constant) of about one, forms insoluble compounds with U and other actinides in acid solutions. Accumulation of solids in these storage tanks presents a criticality hazard and must be avoided.
WebDibutyl phosphoric acid (DBP) complexes with uranium, zirconium, and gadoliniru, forming compounds soluble in TBP and its solution in hydrocarbon diluents (dodecane or kerosene). This results in a lower gadolinium or zirconium decontamination factor, and an increase in uranium losses in the raffinate, or aqueous waste, produced by the solvent ... WebJan 4, 2000 · The concentrations in solution are approximately 6 g/L U and 0.1 M nitric acid. Residual tributylphosphate in solution has slowly hydrolyzed to form dibutyl phosphoric acid (HDBP) at concentrations averaging 30--50 mg/L. Dibutyl phosphoric acid, in turn, is in equilibrium with (HDBP){sub 2} and DBP{sup {minus}}.
WebThe results indicate that four factors are of particular significance: (1) dibutyl phosphate (DBP) is the principal plutonium-complexing species formed at temperatures of 50/sup 0/C or lower, while significant concentrations of monobutyl phosphate (MBP) are also formed at higher temperatures; (2) the TBP degradation rate due to alpha radiolysis ... WebRates of decomposition are reported for the tributyl phosphate complexes of uranyl nitrate and nitric acid under isothermal and adiabatic conditions. These data are used to estimate conditions at which the decomposition reaction becomes self-accelerating. (auth) Authors: Nichols, G S. Publication Date: Tue Nov 01 00:00:00 EST 1960. Research Org.:
WebAug 25, 2024 · A chemical liquid contains phosphoric acid or a salt thereof, a polar aprotic solvent, water, and a compound that has a carboxy group and does not have a hydroxyl group or a salt of the compound, in which a content of the phosphoric acid or a salt thereof is 5.0% by mass or less with respect to a total mass of the chemical liquid, a content of …
Web首页 / 专利分类库 / 一般的物理或化学的方法或装置 / 是有关分离的最通用的小类，但不包括从固体中分离出固体。 / 用其他的液体取代被置换的液体，例如，从湿的固体或从弥散的液体或从在液体内的固体中置换 / Surface demoisturizing composition and use thereof dung beetle commensalismWebCAS: 107-66-4: Molecular Formula: C8H19O4P: Molecular Weight (g/mol) 210.21: MDL Number: MFCD00015245: InChI Key: JYFHYPJRHGVZDY-UHFFFAOYSA-N: Synonym: … dung beetle coffeeWebJul 1, 1994 · It was also found that the yield of butyl radicals formed upon TBP radiolysis decreases in the presence of 4-MP-2. Analysis of the literature data using the reaction rate constant obtained showed that the inhibition of the formation of dibutylphosphoric acid is, probably, in large measure due to the effective capture of e{sub s} by 4-MP-2. dung beetle coloradoWebDec 4, 1998 · The concentrations in solution are approximately 6 g/L U and about 0.1 M nitric acid. Residual tributylphosphate in the solutions has slowly hydrolyzed to form … dung beetle costume arkWebINSTRUÇÃO NORMATIVA Nº 10, DE 17 DE MARÇO DE 2024. Em atendimento ao parágrafo único do art. 4º da Lei nº 9.966, de 28 de abril de 2000, o Ibama divulga lista atualizada de classificação das substâncias nocivas ou perigosas de acordo com o risco produzido quando descarregadas na água baseada, com mesmo rigor e completude, na … dung beetle crossword 3WebMar 10, 2024 · This reagent does not induce the formation of stable emulsions and, at the same time, allows one to remove dibutyl phosphoric acid (DBP). Its disadvantage is a tendency toward decomposition with volatilization of ammonia and carbon dioxide from the system. This process proceeds at an appreciable rate both in the uranium-stripping … dung beetle coloring pageWebThe hydrolysis half-life of the analog dimethyl phosphoric acid in neutral solution at 100 °C was found to be 2.4 days. Increasing the carbon chain … dung beetle colors