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255580

Sigma-Aldrich

Hydroxylamine hydrochloride

ACS reagent, 98.0%

Synonym(s):
Hydroxylammonium chloride
Linear Formula:
NH2OH · HCl
CAS Number:
Molecular Weight:
69.49
Beilstein:
3539763
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent

vapor pressure

0.001 hPa ( 50 °C)

assay

98.0%

form

powder, crystals or chunks

technique(s)

inhibition assay: suitable

impurities

≤0.005% S compounds
≤0.25 meq/g Titr. free acid

ign. residue

≤0.05%

pH

2.5-3.5 (20 °C, 50 g/L)

mp

155-157 °C (dec.) (lit.)

density

1.67 g/mL at 25 °C (lit.)

anion traces

sulfur compounds (as SO42-): ≤0.005%

cation traces

Fe: ≤5 ppm
NH4+:, passes test
heavy metals: ≤5 ppm (by ICP)

SMILES string

Cl.NO

InChI

1S/ClH.H3NO/c;1-2/h1H;2H,1H2

InChI key

WTDHULULXKLSOZ-UHFFFAOYSA-N

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Application

Powerful reducing agent. Converts aldehydes and ketones to oximes, and acid chlorides to hydroxamic acids. Used as catalyst, swelling agent, and copolymerization inhibitor.

Packaging

5 g in glass bottle
100, 500 g in poly bottle

Biochem/physiol Actions

MAO inhibitor; inhibits platelet aggregation.

Signal Word

Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Carc. 2 - Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Oral

Target Organs

spleen

Storage Class Code

4.1A - Other explosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

More Documents

Quotes and Ordering

One-step Beckmann rearrangement from carbonyl compounds and hydroxylamine hydrochloride in Al2O3/CH3SO3H (AMA) as a new reagent.
Sharghi H and Sarvari MH.
J. Chem. Res. (M), 2001(10), 446-449 (2001)
William J Barnes et al.
Bio-protocol, 7(5), e2149-e2149 (2017-03-05)
Lignin is the second most abundant biopolymer on Earth, providing plants with mechanical support in secondary cell walls and defense against abiotic and biotic stresses. However, lignin also acts as a barrier to biomass saccharification for biofuel generation (Carroll and
Magnesia-supported hydroxylamine hydrochloride in the presence of sodium carbonate as an efficient reagent for the synthesis of 1, 2, 4-oxadiazoles from nitriles.
Kaboudin B and Saadati F.
Tetrahedron Letters, 48(16), 2829-2832 (2007)
Selective dissolution of manganese oxides from soils and sediments with acidified hydroxylamine hydrochloride.
Chao TT.
Soil Science Society of America Journal. Soil Science Society of America, 36(5), 764-768 (1972)
Simbarashe Ngwerume et al.
The Journal of organic chemistry, 78(3), 920-934 (2012-12-29)
A novel gold-catalyzed method for the regioselective synthesis of highly substituted pyrroles directly from oximes and alkynes was developed via independent optimization of two key steps of the process. Importantly, a cationic gold(I) species was shown to activate multiple steps

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