CAS No.37286-64-9,Poly[oxy(methyl-1,2-ethanediyl)],a-methyl-w-hydroxy- Suppliers

CAS Number:
37286-64-9
Name:
Poly[oxy(methyl-1,2-ethanediyl)],a-methyl-w-hydroxy-
Formula:
(C3H6 O)n C H4 O
Molecular Structure:
Synonyms:
AdekaCarpol ML 250; D 1012; DF 1012; DF 1012 (frother); DF 200; DF 200 (frother); DF250; DF 250 (frother); Dowfroth 250; Jeffox OL 2700; Methoxy polypropyleneglycol; Nasfroth AHE; Newpol LB 625; Nissan Uniol MME; PF-X 716; PPG-LX 865;Poly(oxypropylene) monomethyl ether; Polyoxypropylene glycol monomethyl ether;Polyoxypropylene methyl ether; Polypropylene glycol methyl ether; Polypropyleneglycol methyl monoether; Polypropylene glycol monomethyl ether; Polypropyleneglycol monomethyl ether-silica graft copolymer; Propylene oxide-methanoladduct; Sumaku MP 40
Molecular Weight:
0
Density:
0.955g/cm³
Boiling Point:
203.3°Cat760mmHg
Flash Point:
76.7°C
Safety:
Mildly toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes. See also GLYCOL ETHERS.Details

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average molecular weight 250 color amber odor none or mild viscosity at 25 oC, CST

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Dow Froth 250 dow froth 250 floatation frother is a ploypropylene glycol methyl ether,and standard for an extremely wide range of applications.

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Flotation of chrysocolla ore: Flotation of chrysocolla ore. Dondero C., Amelia; Purcell, Geoffrey (New Mexico Inst. Min. Technol., Socorro, NM 87801, USA). An. Congr. Nac. Metal.Some commonly used reagents like 14567-86-3 and 12135-76-1 are used in this experiment., 3rd, Volume 2, B111-B120. Inst. Invest. Ensayes Mater.: Santiago, Chile. (English) 1983. CODEN: 50ZKAI. DOCUMENT TYPE: Conference CA Section: 54 (Extractive Metallurgy) High-grade chrysocolla ore (6.4-7.4% Cu) from New Mexico was ground to +400 mesh and deslimed to remove the fines. A flotation test on a lab. scale was made with (NH4)2S (0.79 to 1.25 kg/ton), Aero 412 [81605-65-4] promoter, kerosine emulsified with Tergitol Anionic 4 [139-88-8], and Dowfroth 1012 [37286-64-9] as the frother. A sulfide electrode was used to control the sulfide ion concn. in the pulp. The method was suitable for chrysocolla recovery when a suitable sulfide ion concn. was maintained (no excess HS- or S2- is desirable). Without optimization, ~80% recovery was obtained using (NH4)2S 1.2 and 0.67 kg/ton during the grinding and flotation. .

Molecular conformation and interactions in oligomeric mixtures of poly(ethylene glycol) and poly(propylene glycol) methyl ethers: a small-angle neutron scattering study: Molecular conformation and interactions in oligomeric mixtures of poly(ethylene glycol) and poly(propylene glycol) methyl ethers: a small-angle neutron scattering study. Higgins, J. S.; Carter, A. J. (Dep. Chem. Eng., Imp. Coll., London, UK). Macromolecules, 17(10), 2197-202 (English) 1984. CODEN: MAMOBX. ISSN: 0024-9297. DOCUMENT TYPE: Journal CA Section: 36 (Physical Properties of Synthetic High Polymers) Small-angle neutron scattering measurements are reported for poly(propylene glycol) Me ether (I) [37286-64-9] of mol. wt. 2100 in binary blends with poly(ethylene glycol) Me ether [9004-74-4] of mol. wt. 600. I mols. vary little in av. dimensions as their concn. in the blend decreases. Data at two vol. fractions are analyzed to obtain values of the interaction parameter from the concn. fluctuation contribution to the scattering. Differences between these values and those obtained from heat of mixing measurements are discussed in terms of entropic contributions to the free energy of mixing.

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