1.05426

Ammonia solution

32%, EMPLURA^®

• Sinônimo(s): Amônia aquosa, Água de amônia
• Fórmula linear: NH₄OH
• Número CAS: 1336-21-6
• Peso molecular: 35.05
• Beilstein: 3587154
• Número MDL: MFCD00066650
• Código UNSPSC: 12352402
• NACRES: NA.21

Propriedades

• product name: Hidróxido de amônio, EMPLURA^®
• pressão de vapor: 837 hPa ( 20 °C)
• Nível de qualidade: 200
• linha de produto: EMPLURA^®
• forma: liquid
• Lim. expl.: 27 %
• concentração: ≥30% (NH₃, acidimetric)
• Impurezas: ≤0.0001% Heavy metals (as Pb); ≤0.0005% Fe (Iron); ≤0.0008% Substances reducing potassium permanganate (as O); ≤0.002% Chloride (Cl); ≤0.003% Sulphate (SO?)
• resíduo de ignição: ≤0.003% (as sulphates)
• cor: APHA: ≤10
• pb: 37.7 °C/1013 hPa
• pf: -91.5 °C
• densidade: 0.9 g/mL at 25 °C (lit.)
• temperatura de armazenamento: 2-30°C
• cadeia de caracteres SMILES: [NH4+].[OH-]
• InChI: 1S/H3N.H2O/h1H3;1H2
• chave InChI: VHUUQVKOLVNVRT-UHFFFAOYSA-N

Descrição

Aplicação

• Highly Efficient Recovery of Au(I) from Gold Leaching Solution Using Sodium Dimethyldithiocarbamate.: This study explores the effective recovery of gold using sodium dimethyldithiocarbamate in an ammonia-rich environment, highlighting the interaction with ammonia solution and its impact on the leaching process (Yang et al., 2024).


• Oxidation mechanism of pyrite in a thiosulfate solution: electrochemical impedance (EIS) and in situ Raman spectroscopy.: Explores the oxidation processes of pyrite in thiosulfate solutions facilitated by ammonia, examining the electrochemical properties and kinetics involved in the oxidation mechanism (Tamayo et al., 2023).

Embalagem

Due to quality and safety aspects Ammonia Solution will no longer be offered in glass bottles but solely in HDPE bottles.

Please note the following replacements:
1054261000 (1 L glass bottle) replaced by 1054261011 (1 L HDPE bottle)
1054262500 (2.5 L glass bottle) replaced by 1054262511 (2.5 L HDPE bottle)

More information about our ergonomic and unbreakable HDPE bottles can be found here: www.SigmaAldrich.com/hdpe-bottle

Nota de análise

Assay (acidimetric, NH₃): ≥ 30 %
Identity: passes test
Colour: ≤ 10 Hazen
Chloride (Cl): ≤ 0.002 %
Sulphate (SO₄): ≤ 0.003 %
Heavy metals (as Pb): ≤ 0.0001 %
Fe (Iron): ≤ 0.0005 %
Substances reducing potassium permanganate (as O): ≤ 0.0008 %
Residue on ignition (as sulphates): ≤ 0.003 %

Informações legais

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

Informações de segurança

• Pictogramas: GHS05,GHS07,GHS09
• Palavra indicadora: Danger
• Frases de perigo: H314 - H335 - H410
• Declarações de precaução: P261 - P271 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Classificações de perigo: Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
• Órgãos-alvo: Respiratory system
• Código de classe de armazenamento: 8B - Non-combustible, corrosive hazardous materials
• Classe de risco de água (WGK): WGK 2