1-20 of 59 Search Results for

chelating agents

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001119
EISBN: 978-1-62708-162-7
..., and carcinogenicity of metal compounds. It discusses some commonly used chelating agents for treating metal intoxication, and clinical effectiveness in treating poisoning by different metals. The metals discussed are grouped into four categories: (1) major toxic metals with multiple effects, including arsenic...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006489
EISBN: 978-1-62708-207-5
... in solution. Sequestrants (or chelating agents), such as gluconic acid, sodium gluconate, the glucamines, and sorbitol, are incorporated into proprietary additives to prevent the formation of hydrated alumina and to keep the aluminum in solution. These sequestrants can be used independently as well...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001222
EISBN: 978-1-62708-170-2
... or inorganic compounds that enhance cleaning or surface modification. Chemical compounds such as glycols, glycol ethers, corrosion inhibitors, and chelating agents should be considered additives. Glycols and glycol ethers are solvents that remove certain oily soils. Corrosion inhibitors can...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004143
EISBN: 978-1-62708-184-9
... used chelants include EDTA, citric acid, gluconic acid, and nitrilotriacetic acid (NTA). Chelating agents must be pH adjusted by using acids or alkalis, depending on the type of chelating agent and the scale constituents to be complexed. For example, under alkaline conditions, the sodium salt...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001226
EISBN: 978-1-62708-170-2
... parts, drawn wire, diesel fuel injectors Chips, lubricants, light oxides High caustic with chelating agents Oil-quenched, used automotive parts; fine-mesh and sinterd filters Carbonized oil and grease, carbon smut, heavy grime deposits High caustic, silicated Bearing rings, pump parts, knife...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001266
EISBN: 978-1-62708-170-2
... and the stability of the bath. Other components of electroless gold baths include some chelating agents, stabilizers, buffers, accelerators, and wetting agents. Gold plating baths reported by H. Okudaira et al. ( Ref 6 ) and C.D. Yacovangelo ( Ref 7 ) are listed in Table 2 and Table 3 , respectively...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003216
EISBN: 978-1-62708-199-3
.... Electroless nickel solutions are blends of different chemicals, each performing an important function. Electroless nickel solutions contain: A source of nickel, usually nickel sulfate A reducing agent to supply electrons for the reduction of nickel Energy (heat) Complexing agents (chelators...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004203
EISBN: 978-1-62708-184-9
...% concentration and citric acid at up to 20% concentration are also effective for the more resistant stainless alloys. Other commercially available chelating agents can be employed. The use of these mild acids or chelating agents can also represent a significant advantage in terms of relief from environmental...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003213
EISBN: 978-1-62708-199-3
... detergency. Additives Additives are organic or inorganic compounds that enhance cleaning or surface modification. Chemical compounds such as glycols, glycol ethers, corrosion inhibitors, and chelating agents should be considered additives. Some widely used chelating agents are sodium gluconate, sodium...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001229
EISBN: 978-1-62708-170-2
...% organic chelating agents, 45% complex phosphates, and 5% surface-activating agents. The concentration of the cleaner in the precleaning solution is 30 to 45 g/L (4 to 6 oz/gal), and the operating temperature of the solution ranges from 82 °C (180 °F) to boiling. After immersion in the cleaning solution...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001267
EISBN: 978-1-62708-170-2
... other alloying metals. The operating parameters for pH can range from strong acid to strong base, depending on the metal system and the type of chelation and reducing agent being used. With some processes, a secondary reducer is used to increase the efficiency and quantity of alloying metal...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001265
EISBN: 978-1-62708-170-2
... of a complexing, or chelating, component. Historically, complexing agents for electroless copper baths have almost always fallen into one of the following groups of compounds: Tartrate salts Alkanol amines, such as quadrol (N,N,N′,N′ tetrakis(2-hydroxypropyl)ethylenediamine) or related compounds EDTA...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001253
EISBN: 978-1-62708-170-2
... for a particular application. Decorative Plating The traditional gold electroplating solution ( Table 1 ) for decorative use required: A source of gold A complexing agent for the gold A conducting salt to help carry the current and broaden the conditions of operation An alloying metal...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001307
EISBN: 978-1-62708-170-2
...-conditioning bath consists of a highly alkaline aqueous solution, sometimes containing complexing and chelating compounds. The main purpose of these agents is to solubilize the scale as much as possible. The performance of a particular chelating agent depends on the affinity of the compound for the metal ions...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005777
EISBN: 978-1-62708-165-8
... immersion, spray cycles Removes oil and grease by saponification or emulsification Degree of cleanliness depends largely on thorough mechanical agitation Mix of ingredients such as surfactants, sequestering agents, saponifiers, emulsifiers, and chelators Also with various forms...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006629
EISBN: 978-1-62708-213-6
... referred to as the precipitating agent or simply the precipitant. The suitability of the precipitant is determined by the magnitude of its solubility product constant ( K sp ) with the analyte. A sample K sp equation is shown as follows for the dissolution of the hypothetical sparingly soluble compound...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001256
EISBN: 978-1-62708-170-2
... as a substitute for tin-lead. Bismuth as an alloying agent prevents the whiskering and tin pest that can occur in tin coatings. Tin-Nickel Tin-nickel is used for corrosion-resistant coatings, especially in seawater environments. It has an attractive chromelike appearance and high lubricity when plated over...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001262
EISBN: 978-1-62708-170-2
... plating favors the deposition of the alloying agent. The operator should analyze the deposits to determine if the amount of cobalt in the solution should be adjusted. In most cases, the amount of available cobalt (or other alloying agent) should be reduced (from the amount used with continuous current...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001740
EISBN: 978-1-62708-178-8
... are variations of this standard addition method ( Ref 17 ). Various Subtraction Techniques Various subtraction techniques involve adding a known amount of a chelating agent to the sample following determination of sample potential. A second potential is obtained from the modified solution, and these two...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.9781627081825
EISBN: 978-1-62708-182-5