NR (RSS-3), zinc oxide (surface area 5-6 [m.sup.2]/g), stearic acid, sulfur, and tetra methyl thiuram
disulfide (TMTD) were obtained from Thailand Rubber Research Institute.
The most frequent of these are: thiuram
mix, quaternary ammonium, formaldehyde, benzalkonium chloride, and nickel [1,7-9].
DeLeo has seen two cases of patients with facial dermatitis who turned out to be allergic to thiuram
, a component of rubber.
Thiram (tetramethyl thiuram
disulfide, TMTD) belongs to the dithiocarbamate family of pesticide.
Upon further investigation, BD determined that the affected tubes' rubber stoppers contain a chemical called thiuram
that can release sulfur-containing gases that dissolve into blood samples and bind tightly to lead particles.
The chemical in question is thiuram
, which can release gases containing sulfur that dissolve into blood samples and bind to the lead particles.
Kourkoumelis et al., "Synthesis, characterization and biological activity of antimony(III) or bismuth(III) chloride complexes with dithiocarbamate ligands derived from thiuram
degradation," Polyhedron, vol.
The allergens used included the following 20 allergens: control (petrolatum), potassium dichromate 0.5%; neomycin sulphate 20%; cobalt chloride 1%; benzocaine 5%; formaldehyde 1%; paraphenylenediamine base 0.1%; parabens 15%; nickel sulphate 5%; colophony 20%; mercaptobenzothiazole 2%; nitrofurazone 1%; epoxy resin 1%; fragrance mix 8%; chlorocresol 1%; wool alcohol 30%; balsam of Peru 25%; thiuram
mix 1%; black rubber mix 0.6%; Parthenium.
The TT also has a higher false-positive rate to neomycin, thiuram
mix, balsam of Peru, fragrance mix, cobalt, and lanolin.
The highest-frequency work-related allergens are thiuram
mix, carba mix, and epoxy resin.
Adamczyk, "The Effect of Thiuram
on the Uptake of Lead and Copper by Melissa officinalis," Environmental Engineering Science, vol.