Metol

Its chief use is as a component in photographic developers. Because the free compound is unstable in air and light, it is usually marketed as the sulfate salt [55-55-0] Metol, mp 260°C (dec.). It also finds appHcation as an intermediate for fur and hair dyes and, under certain circumstances, as a corrosion inhibitor for steel. Prolonged exposure to 4-(/V-methy1amino)pheno1 has been associated with the development of dermatitis and allergies. 

Rototing metol drum Coolont sproy Solidifying burden Floked solids... 

Continuous-tray dryers such os continuous metol belts, vibrating troys utilizing hot goses, vertical turbodryers... 

Phosphorus and Silicon in Waters, Effluents and Sludges [e.g. Phosphorus in Waters, Effluents and Sludges by Spectrophotometry-phosphomolybdenum blue method. Phosphorus in Waters and Acidic Digests by Spectrophotometry-phosphovanadomolybdate method. Ion Chromatographic Methods for the Determination of Phosphorus Compound, Pretreatment Methods for Phosphorus Determinations, Determination of silicon by Spectrophotometric Determination of Molybdate Reactive Silicon-1 -amino-2-naphthol-4, sulphonic acid (ANSA) or Metol reduction methods or ascorbic acid reduction method. Pretreatment Methods to Convert Other Eorms of Silicon to Soluble Molybdate Reactive Silicon, Determination of Phosphorus and Silicon Emission Spectrophotometry], 1992... 

Zement-kalk, m. hydraulic lime, -kalkmdrtel, m. lime-and-oement mortar, -kalkstein, m. hydraulic limestone, -kohle, /. cementation carbon, -kufe, -kiipe, /. cement (or concrete) vat. -kupfer, m. cement copper, -mastiz, m. mastic cement, -metoll, n. metal precipitated by the cementation process. -miUk, /. thin cetnent mortar. 

Nominal Desig- nation Wall Thick- ness Inside Diam. Weight per Foot Wt. of Water per Ft. of Pipe Sq. Ft. Outside Surface per Ft. Sq. Ft. Inside Surface per Ft. Trans- verse Area in.2 Area of Metol in,2 Moment of Inertio in. Section Modulus in. Radius of Gyro tion in. 

This has the following composition Metol, 2 g sodium sulphite (anhydrous) 75 g hydroquinone, 8 g sodium carbonate (anhydrous), 37.5 g potassium bromide, 2 g water to make 1 L. Dissolve chemicals in order given. 

A sensitive spectrophotometric method was reported for the determination of niclosamide and some other antiamebic and anthelmintic drugs either in pure form or in formulations. The method was based on reduction with Zn and HC1 followed by reaction with metol and potassium dichromate at pH 3.0 to give a colored product having maximum absorbance at 530 nm for niclosamide [54]. 

Small methyl groups are important in the stractnre of some small compounds, nucleotides, some bases in DNA mole-cnles and in postranslational modification of amino acids in proteins. The transfer of a single carbon atom is important in the synthesis of purine nncleotides. The componnds involved in the whole process of methyl gronp transfer, and are carbon metolism, are methionine, homocysteine, serine and the vitamins, folic acid and B12. 

The black and white negative in each layer is developed using conventional developers of the metol/hydroquinone or phenidone/hydroquinone type... 

Elemenl 53. At. wt. 126.91. Gray-black crystals of a peculiar odor. Sublimes with violet color. Combines directly with metols ond non-metols. It has a density of 4.9. 

Element 19. Atomic wt. 39.100. Density 0.B7. (English Potassium) Silver-white metol, so soft it con be cut with knife. Oxidizes in air. Reacts with wo-ler. Burns with violet flame. 

Gray-white metol. Ductile ond molleable. Reacts with most acids, releasing hydrogen. 

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