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183687

Sigma-Aldrich

Reinecke salt

ACS reagent, ≥93.0%

Synonym(s):

Ammonium reineckate, Ammonium tetrarhodanatodiamminechromate(III), Ammonium tetrathiocyanatodiamminechromate(III), Ammonium tetrathiocyanodiammonochromate

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About This Item

Linear Formula:
NH4[Cr(NH3)2(SCN)4]
CAS Number:
13573-16-5
Molecular Weight:
336.43
EC Number:
237-003-3
MDL number:
MFCD00066638
UNSPSC Code:
12352302
PubChem Substance ID:
329751665
NACRES:
NB.24

grade

ACS reagent

Assay

≥93.0%

form

powder

reaction suitability

reagent type: catalyst
core: chromium

impurities

≤0.05% insol. dil. HCl

mp

268-272 °C (dec.) (lit.)

storage temp.

2-8°C

SMILES string

N.N.[NH4+].N#CS[Cr-](SC#N)(SC#N)SC#N

InChI

1S/4CHNS.Cr.3H3N/c4*2-1-3;;;;/h4*3H;;3*1H3/q;;;;+3;;;/p-3

InChI key

ZGLIQORZYPZFPW-UHFFFAOYSA-K

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General description

Reinecke salt [ammonium tetrarhodanatodiamminechromate(III)] is an ammonium salt. It participates in the quantitative precipitation of histones as well as basic compounds present in an acid tissue extract by forming reineckate complexes.

Application

Color reagent and precipitant for mercury. Precipitant for primary and secondary amines and certain amino acids.
Reinecke salt may be used as a precipitation reagent for the isolation of quaternary ammonium alkaloids (QAAs) in the dried powder of Rhizoma Corydalis. Quantitative analysis of these QAAs was conducted by MALDI-MS (Matrix-Assisted Laser Desorption Ionization - Mass Spectrometry). It may be used for the fabrication of bulk Meldola blue-zirconium phosphate-Reinecke salt screen-printed electrodes (bMBZrPRs-SPEs).

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302 + H312 + H332

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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X F Sun et al.
Analytical biochemistry, 167(2), 304-311 (1987-12-01)
A method to permit isolation and measurement of trimethylselenonium ion [TMSe, (CH3)3Se+] from 1 liter of human urine was developed. The method was based on precipitation of TMSe with ammonium reineckate, preseparation with anion-exchange resin, and final thermal decomposition and
Gamal H Ragab et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 60(4), 973-978 (2004-03-24)
Three accurate, rapid and simple atomic absorption spectrometric, conductometric and colorimetric methods were developed for the determination of norfloxacin (NRF), ciprofloxacin (CIP), ofloxacin (OFL) and enrofloxacin (ENF). The proposed methods depend upon the reaction of ammonium reineckate with the studied
Qualitative and quantitative analysis of quaternary ammonium alkaloids from Rhizoma Corydalis by matrix-assisted laser desorption/ionization Fourier transform mass spectrometry coupled with a selective precipitation reaction using Reinecke salt.
Cheng ZH, et al.
Analytica Chimica Acta, 555(2), 269-277 (2006)
S Khalil
Journal of pharmaceutical and biomedical analysis, 21(4), 697-702 (2000-03-04)
Ion-associate complexes of ephedrine HCl (I), cinchonine HCl (II), chlorpheniramine maleate (III), atropine sulphate (IV) and diphenhydramine HCl (V) with ammonium reineckate were precipitated and their solubilities were studied as a function of pH, ionic strength and temperature. Saturated solutions
H Puzanowska-Tarasiewicz et al.
Journal of pharmaceutical and biomedical analysis, 26(1), 1-5 (2001-07-14)
Reinecke salt and alizarin S have been tested as reagents for the determination of promazine. They react in neutral and acidic media with promazine forming a reddish and brown crystalline compounds. The compounds are sparingly soluble in water but fairly
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