1.05426

Ammonia solution

32%, EMPLURA^®

• Sinonimo/i: Ammoniaca acquosa, Ammoniaca in acqua
• Formula condensata: NH₄OH
• Numero CAS: 1336-21-6
• Peso molecolare: 35.05
• Beilstein: 3587154
• Numero MDL: MFCD00066650
• Codice UNSPSC: 12352402
• NACRES: NA.21

Proprietà

• product name: Idrossido di ammonio, EMPLURA^®
• Tensione di vapore: 837 hPa ( 20 °C)
• Livello qualitativo: 200
• Nome Commerciale: EMPLURA^®
• Forma fisica: liquid
• Limite di esplosione: 27 %
• Concentrazione: ≥30% (NH₃, acidimetric)
• Impurezze: ≤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?)
• Residuo alla calcinazione: ≤0.003% (as sulphates)
• Colore: APHA: ≤10
• P. eboll.: 37.7 °C/1013 hPa
• Punto di fusione: -91.5 °C
• Densità: 0.9 g/mL at 25 °C (lit.)
• Temperatura di conservazione: 2-30°C
• Stringa SMILE: [NH4+].[OH-]
• InChI: 1S/H3N.H2O/h1H3;1H2; VHUUQVKOLVNVRT-UHFFFAOYSA-N

Descrizione

Applicazioni

• 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).

Confezionamento

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

Risultati analitici

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 %

Note legali

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

Informazioni sulla sicurezza

• Pittogrammi: GHS05,GHS07,GHS09
• Avvertenze: Danger
• Indicazioni di pericolo: H314 - H335 - H410
• Consigli di prudenza: P261 - P271 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Classi di pericolo: Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
• Organi bersaglio: Respiratory system
• Codice della classe di stoccaggio: 8B - Non-combustible, corrosive hazardous materials
• Classe di pericolosità dell'acqua (WGK): WGK 2