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chemical reactive warmers

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006090
EISBN: 978-1-62708-175-7
... surface area Table 2 Properties of iron powders used for chemical reactive-type warmer and heater application Properties Product name (a) (type of elemental iron) LD-80 (reduced iron) M100 (reduced iron) Chemical Assay, % >97 >97 Acid-insoluble, % 0.24 0.19...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006073
EISBN: 978-1-62708-172-6
... molecule, the reactive sites of each of the reacting molecules must align and come within very close proximity to each other (generally within 3 to 5 angstroms (Å = 1 × 10 –10 m) for the chemical crosslinking reaction to occur ( Ref 1 ). For example, in an epoxy resin that is crosslinked...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003844
EISBN: 978-1-62708-183-2
.... Coat. Linings , Dec 1999 • Schilling, Caveat Emptor: Understanding Coating Failures in Petrochemical Facilities , J. Prot. Coat. Linings , March 1989 , p 39 – 40 (chemical reactivity of red iron oxide pigment) • Schilling, Understanding Coating Failures: Success Is Rarely...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006081
EISBN: 978-1-62708-175-7
... dry toner carrier for plain-paper photocopiers, iron-enrichment additives in foods, exothermic food heaters and hand warmers, catalysts, oxygen absorbers, and chemical reagents. Carbonyl iron powders are the only other commercially produced iron powders that offer a similar high level of purity...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006018
EISBN: 978-1-62708-175-7
..., ferrous sulfate and other salts are too reactive, leading to food enrichment problems such as off flavors, odors, color changes, and chemical change or reaction during the baking or cooking process. Some of these difficulties reportedly are overcome by encapsulation of the ferrous sulfate with food...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003843
EISBN: 978-1-62708-183-2
... Table 2 Chemicals that deteriorate concrete Promote rapid deterioration of concrete Aluminum chloride Calcium bisulfite Hydrochloric acid (all concentrations) (a) Hydrofluoric acid (all concentrations) Nitric acid (all concentrations) Sulfuric acid, 10%–80...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003144
EISBN: 978-1-62708-199-3
... Atmosphere Description Heavy industrial atmospheres These contain general industrial emissions such as sulfurous gases, corrosive mists, and fumes released from chemical plants and refineries. The most aggressive conditions are often found in places of intense industrial activity where the coating...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001272
EISBN: 978-1-62708-170-2
... zinc-iron layers and creates a metallurgical bond. See Table 3 for properties of alloy layers. 250× The complex structure of layers that comprise a galvanized coating varies greatly in chemical composition and physical and mechanical properties, being affected by chemical activity, diffusion...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001012
EISBN: 978-1-62708-161-0
... of iron and steel consists of treatment with a dilute solution of phosphoric acid and other chemicals by which the surface of the metal, reacting chemically with the phosphoric acid, is converted into an integral layer of insoluble crystalline phosphate compound. This layer is less reactive than the metal...
Book Chapter

By Jude Mary Runge
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006523
EISBN: 978-1-62708-207-5
..., such as an electrodeposited metal, or an applied layer, such as paint or lacquer. It is also not a chemical conversion coating such as a phosphate or chromate conversion coating. All conversion coatings are equilibrium processes, with only the chemical potential difference between the electrolyte and substrate driving...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001264
EISBN: 978-1-62708-170-2
... mechanical properties metallurgical properties physical properties plastics solution composition steel ELECTROLESS NICKEL PLATING is used to deposit nickel without the use of an electric current. The coating is deposited by an autocatalytic chemical reduction of nickel ions by hypophosphite...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.9781627082136
EISBN: 978-1-62708-213-6
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.9781627081993
EISBN: 978-1-62708-199-3