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Zinc molybdates

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]

The search for new, effective anticorrosive pigments with low toxicity to replace red lead and chromates in paints has occupied the attention of many paint-making companies recently. Barium metaborate, calcium molybdate and zinc molybdate have been identified as possible compounds but they have not found general acceptance in the United Kingdom and western Europe, most probably because of their lower cost effectiveness. [Pg.642]

Utility systems for equipment and space heating and cooling frequently use heavy metal corrosion inhibitors in their heat transfer fluids. Chromate compounds are among the best corrosion inhibitors available. Nonchromate inhibitors that have proved to be feasible substitutes include polyphosphates, organophosphates, zinc, molybdates, and aromatic azoles. Some of these compounds have their own environmental impacts, however. Azoles, for instance, can be quite dangerous to human health. [Pg.6]

Property Zinc molybdate pigment Calcium zinc molybdate pigment Basic sodium zinc molybdate pigment Basic calcium zinc phosphomolybdate pigment... [Pg.203]

Offline passivation involves treatment of equipment currently out of service. Treatment levels are typically higher consequently, passivation is completed more quickly. Passivation of nonchromate treatment generally uses either a polyphosphate, zinc, molybdate or other nonchromate-based inhibitor in combination with various surface-active cleaning agents. The passivation solution should be disposed of after the pretreatment stage, rather than dumped back into the cooling system where the potential for fouling can exist due to the precipitation of pretreatment compounds such as zinc or phosphate. Table 8.1 outlines both online and offline pretreatment procedures. [Pg.189]

Quantitative risk assessments have been performed on a variety of flame-retardants used both in upholstered furniture fabric and foam. The National Research Council performed a quantitative risk assessment on 16 chemicals (or chemical classes) identified by the U.S. Consumer Product Safety Commission (CPSC). The results were published in 2000.88 The 16 flame-retardants included in this NRC study were HBCD, deca-BDE, alumina trihydrate, magnesium hydroxide, zinc borate, calcium and zinc molybdates, antimony trioxide, antimony pentoxide and sodium antimonate, ammonium polyphosphates, phosphonic acid, (3- [hydroxymethyl]amino -3-oxopropyl)-dimethylester, organic phosphonates, tris (monochloropropyl) phosphate, tris (l,3-dichloropropyl-2) phosphate, aromatic phosphate plasticisers, tetrakis (hydroxymethyl) hydronium salts, and chlorinated paraffins. The conclusions of the assessment was that the following flame-retardants can be used on residential furniture with minimal risk, even under worst-case assumptions ... [Pg.691]

Characteristic Unit Caicium zinc moiybdate Caicium zinc phosphate moiybdate Zinc molybdate Zinc phosphate molybdate... [Pg.221]

Mo209Zns (s) 3ZnO 2M0O3 (s) Zinc Molybdate(VI) M020gZn3 (S) 3ZnO 2M0O3 (s)... [Pg.691]

Aluminum trihydrate, magnesium hydroxide, calcium and zinc molybdates, antimony pentoxide, and zinc borate are examples of inorganic compounds used as flame retardants in the manufacture of household furniture, upholstery, wall coverings, draperies, and carpets (National Research Council (NRC), 2000). Antimony trioxide is sometimes used in combination... [Pg.229]

Chem. Descrip. Strontium zinc molybdate phosphosiiicate Uses Corrosion inhibitor, pigment for aikyds (traditional and high solids), water-reducible aikyds, latexes, epoxies, thin film appiics. [Pg.395]

Chem. Descrip. Basic calcium zinc molybdate-based Uses Corrosion inhibitor for protective coatings Eeatures Economical stable synergistic with zinc phosphate Properties Wh. fine powd. < 0.1% 325 mesh residue 3.2 p mean particle size nodular shape sp.gr. 3.0 oil absorp. 17 g/100 g < 0.5% moisture... [Pg.540]

Calcium zinc molybdate. See Calcium-zinc-molybdenum complex... [Pg.1021]

Synonyms Calcium zinc molybdate Molybdenum white... [Pg.1021]

Synonyms Molybdenum white Zinc molybdate, basic Empirical Mo04Zn Mo04Zn ZHjO... [Pg.1424]

Synonyms Zinc phosphomolybdate Definition Zinc phosphate modified with zinc molybdate Uses Corrosion-inhibiting pigment for coatings Trade Names Heucophos ZMP Moly-White ZNP Moly-White ZNPED-Plus... [Pg.1424]

Calcium tjoroslllcale pigment, corrosion inhibiting alkyds Calcium boroslllcate. Strontium zinc molybdate phos/ slllcate pigment, corrosion inhibiting aq. coalings Calcium zinc phosphomolybda, Moly-White MZAP... [Pg.1567]

Stronbum zinc molybdate phosphoslllcate pigment, corrosion inhibiting wash primers Moly-White 92 pigment, corrosion inhibitor Calcium molybdate... [Pg.1567]

See other pages where Zinc molybdates is mentioned: [Pg.1086]    [Pg.458]    [Pg.1036]    [Pg.202]    [Pg.210]    [Pg.1040]    [Pg.348]    [Pg.216]    [Pg.216]    [Pg.689]    [Pg.155]    [Pg.308]    [Pg.1730]    [Pg.1347]    [Pg.135]    [Pg.398]    [Pg.750]    [Pg.742]    [Pg.38]    [Pg.327]    [Pg.331]    [Pg.540]    [Pg.540]    [Pg.540]    [Pg.540]    [Pg.1365]    [Pg.1424]    [Pg.1424]    [Pg.1567]   
See also in sourсe #XX -- [ Pg.202 ]



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