294993

Ammonia

anhydrous, ≥99.98%

• Linear Formula: NH₃
• CAS Number: 7664-41-7
• Molecular Weight: 17.03
• Beilstein: 3587154
• EC Number: 231-635-3
• MDL number: MFCD00011418
• PubChem Substance ID: 24857750
• NACRES: NA.22

Properties

• Quality Level: 200
• grade: anhydrous
• vapor density: 0.6 (vs air)
• vapor pressure: 8.75 atm ( 21 °C)
• assay: ≥99.98%
• form: liquefied gas
• autoignition temp.: 1203 °F
• expl. lim.: 25 %
• greener alternative product characteristics: Design for Energy Efficiency; Learn more about the Principles of Green Chemistry.
• pH: ~10-12 (20 °C, 50 g/L)
• pKa (25 °C): 9.25
• bp: −33 °C (lit.)
• mp: −78 °C (lit.)
• solubility: water: 531 g/L at 20 °C
• density: 0.7 g/cm³ at -33 °C
• greener alternative category: Enabling
• SMILES string: N
• InChI: 1S/H3N/h1H3
• InChI key: QGZKDVFQNNGYKY-UHFFFAOYSA-N

Description

General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

Application

Ammonia may be used as a base to adjust pH for preparing mixed magnetite-hematite nanoparticles via combustion method. These nanoparticles show promising potential as sorbents for removing heavy metal ions from water.

Anhydrous ammonia has been used in dynamic reaction cell technology (DRC) to remove interfering ions without the loss of sensitivity. It has also been used for adjusting pH during the synthesis of magnetite-hematite mixture by combustion methods.

Reagent for chemical vapor deposition of TiN.

Packaging

170 g in steel cylinder

Other Notes

For 294993-230G-EU packaging: 500 mL of aluminium cylinder equipped with stainless steel valve.

Recommended products

• For 294993-170G: Use either Z148504 or Z148512 CGA 180 Regulators, OR Z146943 CGA 110 Valve, with Z147095 CGA 110 to CGA 180 adapter and Z146986 washer.
• For 294993-230G-EU: outlet fitting: DIN 477-1 no. 1, Z742162 or Z742164 are the recommended regulators.

Safety Information

• Pictograms: GHS04,GHS05,GHS06,GHS09
• Signal Word: Danger
• Hazard Statements: H280 - H314 - H331 - H410
• Precautionary Statements: P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P311 - P305 + P351 + P338 + P310
• Hazard Classifications: Acute Tox. 3 Inhalation - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Press. Gas Liquefied gas - Skin Corr. 1B
• Supplementary Hazards: EUH071
• Storage Class Code: 2A - Gases
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves