Page 143 - Handbook of Adhesion Promoters

136 Properties of Adhesion Promoters

7.30 SULFUR COMPOUNDS

GENERAL INFORMATION
Name: Duralink HTS CAS #: 5719-73-3
Common synonym: disodium S,S'-hexane-1,6-diyldi(thiosulphate) dihydrate
Active matter, wt%: 98-99 Molecular mass: 390
General description: sulfur based vulcanization systems to generate hybrid crosslinks
Composition: 98-99% disodium S,S'-hexane-1,6-diyldi(thiosulfate) dihydrate, 1-2% mineral spirit
PHYSICAL PROPERTIES
Color: off-white Odor: mild, misty State: solid
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Density, at 20 C, kg/m : 1390 Melting point, C: 127-137 (decomp.)
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Solubility in water at 25 C, g/l: 307 Specific gravity at 20 C: 1.4
HEALTH AND SAFETY
HMIS: fire, health, reactivity: 1, 2, 0
DOT, shipping name: not regulated
ICAO/IATA class: not regulated
LD50, oral rat, mg/kg: >5000 LD50, dermal rabbit, mg/kg: >5000
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OSHA PEL, mg/m : 5-15: ACGIH, mg/m : 3-10
ENVIRONMENTAL IMPACT
EC50, Bluegill sunfish, 96h, mg/l: >1000
EC50, Daphnia magna, 48h, mg/l: 250
Partition coefficient, log K : -0.19
oc
USE
Manufacturer: Eastman Chemical Company
Outstanding properties: an adhesion promoter to enhance the adhesion between rubber com-
pounds and brass plated steel reinforcing materials
Typical dose: 1-3 phr