1.16754

Wasser

suitable for UV/Vis spectroscopy, EMSURE^®

• Synonym(e): Entionisiertes Wasser
• Lineare Formel: H₂O
• CAS-Nummer: 7732-18-5
• Molekulargewicht: 18.02
• Beilstein: 2050024
• MDL-Nummer: MFCD00011332
• UNSPSC-Code: 12352303
• NACRES: NA.21

Eigenschaften

• product name: Wasser, for analysis EMSURE^®
• Dampfdruck: 23 hPa ( 20 °C)
• Qualitätsniveau: 300
• Produktlinie: EMSURE^®
• Form: liquid
• Methode(n): UV/Vis spectroscopy: suitable
• Verunreinigungen: ≤0.01 mg/L Ammonium (NH₄); ≤0.01 mg/L Nitrate (NO₃); ≤0.01 mg/L Phosphate (PO₄); ≤0.01 mg/L Silicate (SiO₂); ≤0.05 mg/L Chloride (Cl); ≤0.05 mg/L Fluoride (F); ≤0.08 mg/L Substances reducing potassium permanganate (O); ≤0.1 mg/L Sulfate (SO₄)
• Abdampfrückstand: ≤1 mg/L
• Glührückstand: ≤1 mg/L
• Brechungsindex: n20/D 1.34 (lit.)
• pH-Wert: 7 (20 °C)
• bp: 100 °C (lit.)
• mp (Schmelzpunkt): 0 °C (lit.)
• Dichte: 1.000 g/mL at 3.98 °C (lit.)
• Kationenspuren: Ag: ≤0.0004 mg/L; Al: ≤0.0020 mg/L; As: ≤0.0020 mg/L; Au: ≤0.0010 mg/L; B: ≤0.0050 mg/L; Ba: ≤0.0010 mg/L; Be: ≤0.0020 mg/L; Bi: ≤0.0010 mg/L; Ca: ≤0.0050 mg/L; Cd: ≤0.0010 mg/L; Co: ≤0.0010 mg/L; Cr: ≤0.0004 mg/L; Cu: ≤0.0004 mg/L; Fe: ≤0.0010 mg/L; Ga: ≤0.0040 mg/L; Ge: ≤0.0010 mg/L; In: ≤0.0010 mg/L; K: ≤0.0050 mg/L; Li: ≤0.0020 mg/L; Mg: ≤0.0050 mg/L; Mn: ≤0.0004 mg/L; Mo: ≤0.0020 mg/L; Na: ≤0.0100 mg/L; Ni: ≤0.0004 mg/L; Pb: ≤0.0010 mg/L; Pd: ≤0.0080 mg/L; Pt: ≤0.0010 mg/L; Sb: ≤0.0010 mg/L; Sn: ≤0.0010 mg/L; Sr: ≤0.0004 mg/L; Ti: ≤0.0010 mg/L; V: ≤0.0010 mg/L; Zn: ≤0.0040 mg/L; Zr: ≤0.0010 mg/L
• SMILES String: O
• Lagertemp.: 15-25°C
• InChI: 1S/H2O/h1H2
• InChIKey: XLYOFNOQVPJJNP-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

EMSURE-Lösungsmittel sind für ein breites Spektrum an klassischen Laboranwendungen geeignet und werden häufig in regulierten und hoch anspruchsvollen Laboranwendungen eingesetzt. EMSURE bietet die weltweit besten und umfangreichsten Produktspezifikationen. Unsere EMSURE-Produkte entsprechen der ACS, dem Reagenzienteil der Europäischen Pharmakopöe (Reag. Ph Eur) und den ISO-Standards.

Anwendung

• Cadmium Standard for Atomic Absorption Spectroscopy: An article in Heliyon (2024) explores the pollution indices and correlation of heavy metal contamination, including cadmium, in groundwater near industrial sites. This emphasizes the role of cadmium AAS standards in monitoring environmental pollution and ensuring compliance with safety regulations (Mohan et al., 2024).


• Trace Metal Analysis in Food Samples: In a Food Chemistry study (2024), cadmium standards are crucial for the development of novel electrochemical strategies for detecting cadmium in grain and water, using advanced materials like MXene@rGO composite aerogels (Dong et al., 2023).


• Quality Control in Pharmaceutical Research: The need for precise cadmium calibration standards is underlined in another Food Chemistry publication (2024), which discusses simultaneous electrochemical sensing of heavy metals in food, demonstrating their vital role in ensuring the accuracy and reliability of pharmaceutical and biotechnological analyses (Mirzaei Karazan et al., 2024).

Hinweis zur Analyse

Spez. Leitfähigkeit bei 25 °C (zur  Zeit der Herstellung): ≤ 1 µS/cm
Abdampfrückstand: ≤ 1 mg/l
Glührückstand: ≤ 1 mg/l
Chlorid (Cl): ≤ 0,05 mg/l
Fluorid (F): ≤ 0,05 mg/l
Nitrat (NO₃): ≤ 0,01 mg/l
Phosphat (PO₄): ≤ 0,01 mg/l
Sulfat (SO₄): ≤ 0,1 mg/l
Silikat (SiO₂): ≤ 0,01 mg/l
Ammonium (NH₄): ≤ 0,01 mg/l
Ag (Silber): ≤ 0,0004 mg/l
As (Arsen): ≤ 0,0020 mg/l
Al (Aluminium): ≤ 0,0020 mg/l
Au (Gold): ≤ 0,0010 mg/l
B (Bor): ≤ 0,0050 mg/l
Ba (Barium): ≤ 0,0010 mg/l
Be (Beryllium): ≤ 0,0020 mg/l
Bi (Bismut): ≤ 0,0010 mg/l
Ca (Calcium): ≤ 0,0050 mg/l
Cd (Cadmium): ≤ 0,0010 mg/l
Co (Cobalt): ≤ 0,0010 mg/l
Cr (Chrom): ≤ 0,0004 mg/l
Cu (Kupfer): ≤ 0,0004 mg/l
Fe (Eisen): ≤ 0,0010 mg/l
Ga (Gallium): ≤ 0,0040 mg/l
Ge (Germanium): ≤ 0,0010 mg/l
In (Indium): ≤ 0,0010 mg/l
K (Kalium): ≤ 0,0050 mg/l
Li (Lithium): ≤ 0,0020 mg/l
Mg (Magnesium): ≤ 0,0050 mg/l
Mn (Mangan): ≤ 0,0004 mg/l
Mo (Molybdän): ≤ 0,0020 mg/l
Na (Natrium): ≤ 0,0100 mg/l
Ni (Nickel): ≤ 0,0004 mg/l
Pb (Blei): ≤ 0,0010 mg/l
Pd (Palladium): ≤ 0,0080 mg/l
Pt (Platin): ≤ 0,0010 mg/l
Sb (Antimon): ≤ 0,0010 mg/l
Sn (Zinn): ≤ 0,0010 mg/l
Sr (Strontium): ≤ 0,0004 mg/l
Ti (Titan): ≤ 0,0010 mg/l
V (Vanadium): ≤ 0,0010 mg/l
Zn (Zink): ≤ 0,0040 mg/l
Zr (Zirkonium): ≤ 0,0010 mg/l
Kaliumpermanganat reduzierende Anteile (O): ≤ 0,08 mg/l

Rechtliche Hinweise

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• Lagerklassenschlüssel: 12 - Non Combustible Liquids
• WGK: nwg
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable