69749

Metol

ACS reagent, for spectrophotometric det. of inorganic phosphate, ≥99.0%

• Synonym(e): 4-Methylamino-phenol -hemisulfat (Salz), ECOL, Metol
• Lineare Formel: C₇H₉NO · 1/2H₂SO₄
• CAS-Nummer: 55-55-0
• Molekulargewicht: 172.19
• Beilstein: 3919382
• EG-Nummer: 200-237-1
• MDL-Nummer: MFCD00013140
• UNSPSC-Code: 12164500
• PubChem Substanz-ID: 329761925
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent; for spectrophotometric det. of inorganic phosphate
• Qualitätsniveau: 100
• Assay: ≥99.0% (NT); ≥99.0%
• Form: crystals
• Selbstzündungstemp.: 989 °F
• Methode(n): UV/Vis spectroscopy: suitable
• Glührückstand: ≤0.1%
• mp (Schmelzpunkt): 260 °C (dec.) (lit.)
• Löslichkeit: H₂O: 50 mg/mL, clear
• Anwendung(en): general analytical
• SMILES String: OS(O)(=O)=O.CNc1ccc(O)cc1.CNc2ccc(O)cc2
• InChI: 1S/2C7H9NO.H2O4S/c2*1-8-6-2-4-7(9)5-3-6;1-5(2,3)4/h2*2-5,8-9H,1H3;(H2,1,2,3,4)
• InChIKey: ZVNPWFOVUDMGRP-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Metol (4-methylaminophenol sulphate) is white crystalline which helps in determination of phosphate by reduction reaction of phosphomolybdic acid to molybdenum blue with intense colour. It is used as reducing agent. A solution of Metol could be prepared by dissolving a known amount in water with hydrated sodium sulphite along with which few drops of Brij needs to be added.

Rechtliche Hinweise

Sicherheitshinweise

• Piktogramme: GHS08,GHS07,GHS09
• Signalwort: Warning
• H-Sätze: H302,H317,H373,H410
• P-Sätze: P273 - P280 - P301 + P312 + P330 - P302 + P352 - P314
• Gefahreneinstufungen: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Skin Sens. 1 - STOT RE 2
• Lagerklassenschlüssel: 13 - Non Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): 494.6 °F - closed cup
• Flammpunkt (°C): 257 °C - closed cup
• Persönliche Schutzausrüstung: dust mask type N95 (US), Eyeshields, Faceshields, Gloves