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Ammonium octamolybdate

Molybdenum Oxides. Molybdenum was one of the first elements used to retard the flames of ceUulosics (2). Mote recently it has been used to impart flame resistance and smoke suppression to plastics (26). Molybdic oxide, ammonium octamolybdate, and zinc molybdate ate the most widely used molybdenum flame retardants. Properties ate given in Table 5. These materials ate recommended almost exclusively for poly(vinyl chloride), its alloys, and unsaturated polyesters (qv). [Pg.458]

Antimony trioxide (SbaOj). It is produced from stibnite (antimony sulphide). Some typical properties are density 5.2-5.67 g/cm- pH of water suspension 2-6.5 particle size 0.2-3 p,m specific surface area 2-13 m-/g. Antimony trioxide has been the oxide universally employed as flame retardant, but recently antimony pentoxide (SbaOs) has also been used. Antimony oxides require the presence of a halogen compound to exert their fire-retardant effect. The flame-retarding action is produced in the vapour phase above the burning surface. The halogen and the antimony oxide in a vapour phase (above 315 C) react to form halides and oxyhalides which act as extinguishing moieties. Combination with zinc borate, zinc stannate and ammonium octamolybdate enhances the flame-retarding properties of antimony trioxide. [Pg.637]

Zinc borate is also an effective SS in combination with phosphate ester plasticiser (130). The combination of ammonium octamolybdate and zinc stannate is also beneficial (435). It has been shown that ATH and MDH functional fillers coated with zinc hydroxystannate give significantly increased combustion resistance and lower levels of smoke evolution (386). Copper (I) complexes have been suggested as smoke suppressants (241). Copper oxides have also been investigated with positive results (60). [Pg.22]

Figure 13.7 shows the effect of two combinations on smoke release. Addition of zinc stannate or ammonium octamolybdate, AOM, gives better performance than antimony trioxide alone. " Antimony trioxide performance is also improved by brominated flame retardants. Chlorinated hydrocarbons, antimony trioxide, and novel silicone powders form good combinations, reducing the heat release rate and smoke in thermoplastics. ... [Pg.549]

Types ammonium octamolybdate, molybdenum trioxide, vanadium oxide, zirconium oxychloride, and inorganic compounds listed as flame retardants... [Pg.71]

Chem. Desaip. Ammonium octamolybdate Uses Flame retardant, smoke suppressant in polymers, esp. rigid and flexible PVC and PVC alloys and adhesives in transporlation, construction, and wire and cable markets flame retardant and smoke suppressant in jacketing and insulation for plenum and riser, profiles, wall coverings and upholstery for high risk buildings, and extnrsions for subways ar aircratt interiors... [Pg.182]

Hydral 710 Hydral 716 Hydral PGA KC-350 KC-500 KC-750 KC-900 Micral 532 SB-332 smoke suppressant, unsat. polyesters Ammonium octamolybdate Hydrax H-312 Hydrax H-470 Hydrax H-490 Hydrax H-550 Hydrax H-636 Hydrax H-910 Lubral 2522 Lubral 2544 Lubral 5005 Lubral 5011 smoke suppressant, urethanes Hydramax HM-B8, HM-B8-S Hydrax H-312 Hydrax H-470 Hydrax H-490 Hydrax H-550 Hydrax H-636 Hydrax H-910... [Pg.1600]

Melamine phosphate Tetrabromo-p-xylene Tetrakis (2-chloroethyl) ethylene diphosphate Triethyl phosphate flame retardant, polyimides Ethylenebis (tetrabromophthalimide) flame retardant, polymeric nylon Poly (pentabromobenzyl) acrylate flame retardant, polymeric PBT Poly (pentabromobenzyl) acrylate flame retardant, polymeric PET Poly (pentabromobenzyl) acrylate flame retardant, polymeric PP Poly (pentabromobenzyl) acrylate flame retardant, polymeric PS Poly (pentabromobenzyl) acrylate flame retardant, polymers Ammonium octamolybdate Dimelamine phosphate Ethylene diamine phosphate Melamine borate Melamine pyrophosphate Polydibromophenylene oxide Tris (2-chloropropyl) phosphate flame retardant, polymethyl methacrylate Dimelamine phosphate Diphenyl octyl phosphate... [Pg.5265]

Ammonium octamolybdate Antimony trioxide t-Butylphenyl diphenyl phosphate Dibromoethyidibromocyclohexane Diphenyl octyl phosphate... [Pg.5266]

Tetrabromobisphenol A bis (allyl ether) Tri (P,P -dichloroisopropyl) phosphate flame retardant, unsaturated polyesters Zinc molybdate flame retardant, upholstery Ammonium octamolybdate flame retardant, urethane foams Pentabromodiphenyl oxide flame retardant, vinyl Resorcinol bis (diphenylphosphate) flame retardant, vinyl film Diphenyl octyl phosphate flame retardant, vinyl foam t-Butylphenyl diphenyl phosphate flame retardant, vinyl nitrile foam t-Butylphenyl diphenyl phosphate flame retardant, vinyl resins Trioctyl phosphate flame retardant, vinyl sheeting Diphenyl octyl phosphate flame retardant, wall coverings Ammonium octamolybdate flame retardant, wall coverings high risk buildings... [Pg.5268]

There are several fillers and inoiganic/organic additives used in flame retarded materials and these include antimony oxide, aluminum trihydrate, zinc borate, ammonium octamolybdate, and zinc stannate. The details related to the composition required and performance characteristics of inorganic additives can be found in specialized monograph. Some of these compounds are discussed below in relation to their effects on enhancement of performance of phosphate plasticizers. [Pg.228]

Formulations containing ammonium octamolybdate (AOM) also showed good fire performance, particularly with respect to reductions in heat release rates and smoke emissions, although the increase in time to ignition was significantly lower than that for ZHS. However, AOM caused a reduction in the time to decomposition in the thermal stability test of 9 minutes, and a decrease in Charpy impact of 4 kJ/m. It is also more expensive than ZHS. [Pg.65]

Some interesting work has been reported using Zn and Mo systems in plenum cable formulations. The use of a zinc molybdenum complex in place of ammonium octamolybdate is described in Ref 61 and the use of ammonium octamolybdate in combination with zinc stannate as a smoke suppressant in plenum cable compounds is discussed in Ref [62]. [Pg.335]

Flame and smoke suppression activity in PVC and PVDC compositions has been reported for M0S2, although M0O3 and ammonium octamolybdate are almost exclusively used in these applications [14, 52]. [Pg.393]

See other pages where Ammonium octamolybdate is mentioned: [Pg.50]    [Pg.50]    [Pg.789]    [Pg.74]    [Pg.140]    [Pg.140]    [Pg.570]    [Pg.138]    [Pg.343]    [Pg.30]    [Pg.326]    [Pg.327]    [Pg.328]    [Pg.333]    [Pg.334]    [Pg.978]    [Pg.1528]    [Pg.271]    [Pg.289]    [Pg.329]    [Pg.859]    [Pg.5268]    [Pg.5268]    [Pg.5652]    [Pg.5652]    [Pg.5652]    [Pg.5653]    [Pg.7144]    [Pg.230]    [Pg.455]    [Pg.384]    [Pg.48]    [Pg.153]    [Pg.335]    [Pg.122]   
See also in sourсe #XX -- [ Pg.138 ]

See also in sourсe #XX -- [ Pg.326 , Pg.327 , Pg.328 , Pg.333 ]

See also in sourсe #XX -- [ Pg.228 , Pg.229 ]



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Octamolybdates

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