Detail of "10584-98-2"

CAS Number:
10584-98-2
Name:
8-Oxa-3,5-dithia-4-stannatetradecanoicacid, 4,4-dibutyl-10-ethyl-7-oxo-, 2-ethylhexyl ester
Molecular Structure:
Formula:
C28H56 O4 S2 Sn
Molecular Weight:
639.65
Deleted CAS:
52683-17-7
Synonyms:
Aceticacid, [(dibutylstannylene)dithio]di-, bis(2-ethylhexyl) ester (6CI,8CI);Tin,dibutylbis[(carboxymethyl)thio]-, bis(2-ethylhexyl) ester (7CI);Dibutyltinbis(2-ethylhexyl mercaptoacetate);Dibutyltin bis(2-ethylhexyl thioglycolate);Mellite 31;Tinstab BTS 71S;
EINECS:
234-186-1
Density:
g/cm³
Boiling Point:
270.9 °C at 760 mmHg
Flash Point:
137.4 °C
Hazard Symbols:
Moderately toxic by ingestion. TWA 0.1 mg(Sn)/m³; STEL 0.2 mg(Sn)/m³ (skin).
Safety:
Moderately toxic by ingestion. See also TIN COMPOUNDS. When heated to decomposition it emits toxic fumes of SO_x.
Analytical Methods:

For occupational chemical analysis use NIOSH: Organotin Compounds 5504. Details

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Assay:98%

Supplier:Hangzhou Dayangchem Co., Ltd. [ China (Mainland)]

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2-ethylhexyl 4,4-dibutyl-10-ethyl-7-oxo-8-oxa-3,5-dithia-4-stannatetradecanoate

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Reactions of PVC with organotin stabilizers under controlled conditions: Reactions of PVC with organotin stabilizers under controlled conditions. Ayrey, G.; Hsu, S. Y.; Poller, R. C. (Queen Elizabeth Coll., London W8 7AH, UK). Org. Coat. Appl. Polym. Sci. Proc., 46, 630-4 (English) 1981. CODEN: OCAPDE. ISSN: 0732-7528. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) The rate of uptake of 14C-labeled Bu2Sn dilaurate [77-58-7] from PVC [9002-86-2] in soln. was much slower than that of Bu2Sn bis(Me maleate (I) [15546-11-9] or Bu2Sn bis(2-ethylhexyl thioglycolate) (II) [10584-98-2]. The rate of uptake of I was more rapid and increased linearly up to 15 h. The rate of uptake of II was initially high, but levelled off after 2 h. Heating unstabilized PVC 1 h at 180° gave an orange soln. Removing HCl, adding II, and heating 4 h at 180° removed this color. This showed that II added across the double bonds formed. With I, the color disappeared in 3 h and the rate of 14C uptake was higher than that of virgin PVC.

The use of organotin compounds in the thermal stabilization of poly(vinyl chloride): The use of organotin compounds in the thermal stabilization of poly(vinyl chloride). VI. An assessment of the relative importance of hydrogen chloride-scavenging, exchange, and addition reactions. Ayrey, G.; Hsu, S. Y.; Poller, R. C. (Queen Elizabeth Coll., London W8 7AH, UK). J. Polym. Sci., Polym. Chem. Ed., 22(11, pt. 1), 2871-86 (English) 1984. CODEN: JPLCAT. ISSN: 0449-296X. DOCUMENT TYPE: Journal CA Section: 37 (Plastics Manufacture and Processing) Reactions of PVC [9002-86-2] with three representative stabilizers, dibutyltin dilaurate [77-58-7], dibutyltinbis(2-ethylhexylmercaptoacetate) [10584-98-2], and dibutyltinbis(monomethyl maleate) (I) [15546-11-9], in soln. and under N were studied by two principal methods. First, using stabilizers with radioactive labels in the carboxylate groups, the uptake of these groups by virgin and degraded polymer was measured. The UV-visible absorption spectra of the stabilized polymers are discussed. Second, the effect of these three stabilizers on the rate of elimination of HCl from heated PVC was studied. The effects of HCl scavenging and of exchange reactions in suppressing the evolution of HCl can be sep. evaluated. The thermal decompn. of I to give maleic anhydride is reported. Interpretation of the observations is made in terms of assessing the relative importance of the various polymer-stabilizer reactions in promoting stabilization.