Detail of "21668-81-5"

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CAS Number:
21668-81-5
Name:
1-Propanesulfonic acid,3-[(aminoiminomethyl)thio]-
Superlist Name:
3-S-Isothiuronium propyl sulfonate
Molecular Structure:
Formula:
C₄H₁₀N₂O₃S₂
Molecular Weight:
198.26
Synonyms:
1-Propanesulfonicacid, 3-(amidinothio)- (6CI,7CI,8CI);3-(Amidinothio)propane-1-sulfonic acid;Pseudourea, 2-(3-sulfopropyl)- (8CI);3-(Amidinothio)propanesulfonic acid;Isothioureidopropylsulfonic acid;
EINECS:
244-520-8
Density:
1.61 g/cm³
Melting Point:
240 °C
Appearance:
white crystalline powder
Hazard Symbols:
C
Risk Codes:
34
Safety:
26-36/37/39-45 Details
Transport Information:
UN 3261 8/PG 2

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Aqueous electroless nickel coating bath and process: Aqueous electroless nickel coating bath and process. Harbulak, Edward P.; Stants, Cynthia A. (OMI International Corp., USA). U.S. US 4483711 A 20 Nov 1984, 9 pp. Cont.-in-part of U.S. Ser. No. 503,881, abandoned. 21668-81-5 which is the cas registry number is also used here. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C23C003-02. NCL: 106001220. APPLICATION: US 84-583759 5 Mar 1984. PRIORITY: US 83-503881 17 Jun 1983. DOCUMENT TYPE: Patent CA Section: 56 (Nonferrous Metals and Alloys) Section cross-reference(s): 38, 55 A sulfonium betaine compd., e.g. 3-S-isothiuronium propanesulfonate [21668-81-5], is added to an aq. Ni-P electroless coating bath to control the deposition rate and P concns. in the coating, or to restore an inoperative bath. .

Aqueous electroless nickel coating bath and process: Aqueous electroless nickel coating bath and process. Harbulak, Edward P.; Stants, Cynthia A. (OMI International Corp., USA). U.S. US 4483711 A 20 Nov 1984, 9 pp. Cont.-in-part of U.S. Ser. No. 503,881, abandoned. 21668-81-5 which is the cas registry number is also used here. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C23C003-02. NCL: 106001220. APPLICATION: US 84-583759 5 Mar 1984. PRIORITY: US 83-503881 17 Jun 1983. DOCUMENT TYPE: Patent CA Section: 56 (Nonferrous Metals and Alloys) Section cross-reference(s): 38, 55 A sulfonium betaine compd., e.g. 3-S-isothiuronium propanesulfonate [21668-81-5], is added to an aq. Ni-P electroless coating bath to control the deposition rate and P concns. in the coating, or to restore an inoperative bath. .