Description
Ammonium acetate, min. 99 %, Ultra LC-MS Grade is a high-purity buffer salt for liquid chromatography–mass spectrometry and related analytical work. It carries CAS number 631-61-8, EG number 211-162-9, empirical formula CH₃COONH₄, molar mass 77,08 g/mol and density 1,17 g/cm³. The minimum 99 % assay and Ultra LC-MS grade designation make it suitable for mobile-phase additives, volatile buffer systems and sample preparation where low interference in MS detection is required. This variant is From manufacturer Carl ROTH, the salt integrates readily into reversed-phase and HILIC workflows that rely on ammonium acetate for pH control and ion pairing without non-volatile residues. Clear specification of molar mass and density supports accurate solution preparation, while the Ultra LC-MS positioning aligns with sensitive electrospray and related detection techniques used in pharmaceutical, environmental and life-science laboratories.
This article is part of HPLC & LC-MS grade solvents, in Solvents. See also Analytical grade solvents (p.a.).
Key features
- Assay (titr., dry substance): 99.0-101.0 %
- Appearance of solution (1 M in H2O): clear, colourless
- pH value (1 M in H2O): 6.0-7.5
- Water (KF): ≤2 %
- Filter test (1 M in H2O): complies
- Ash content: ≤0.01 %
- UHPLC/MS/ESI+ (0.1%, as Reserpine): ≤30 ppb
- Chloride (Cl): ≤0.0005 %
- Sulphate (SO4): ≤0.001 %
- Al (Aluminium): ≤0.0001 %
- CAS number: 631-61-8
- Pack sizes: 10 g, 50 g, 100 g
- EG nr.: 211-162-9
- Molar mass: 77,08 g/mol
- Density: 1,17 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Ammonium acetate, min. 99 %, Ultra LC-MS Grade, 10 g, plastic
What is this article?
Ammonium acetate, min. 99 %, Ultra LC-MS Grade, 10 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in HPLC & LC-MS grade solvents, inside Solvents, in Lab chemicals.
HPLC grade limits the absorbance and the residue that would appear as peaks or baseline drift. LC-MS grade goes further on metal ions and on particles that would suppress a mass spectrum. A solvent that is only analytical grade is a false economy on an LC-MS system.
A solvent dissolves. The grade says which impurities are low enough for the method. Analytical grade is the ordinary pure solvent. HPLC and LC-MS grades limit the absorbance and the ions that would become peaks or background. A dry solvent has had water removed. A deuterated solvent is for NMR, where the hydrogen signal would otherwise drown the sample. Technical grade is for cleaning and for synthesis that does not need a chromatogram. Identity is on PubChem. Names follow IUPAC. Hazards follow ECHA, the CLP Regulation and REACH.
Which category should I open next?
The category is Solvents. The sub-category is HPLC & LC-MS grade solvents. The catalogue is Lab chemicals.
Shelves beside this one are Analytical grade solvents (p.a.), Dry & deuterated solvents (NMR, synthesis), Technical & synthesis grade solvents and Green & alternative solvents.
What should I check before I order?
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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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