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30721-M

Sigma-Aldrich

Hydrochloric acid

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., fuming, ≥37%, APHA: ≤10

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Empirical Formula (Hill Notation):
HCl
CAS Number:
7647-01-0
Molecular Weight:
36.46
Beilstein:
1098214
EC Number:
231-595-7
MDL number:
MFCD00011324
UNSPSC Code:
12352301
PubChem Substance ID:
329753568
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

vapor density

1.3 (vs air)

vapor pressure

3.23 psi ( 21.1 °C)
7.93 psi ( 37.7 °C)

Assay

≥37%

form

liquid

impurities

≤0.00005% free chlorine (Cl)
≤0.0001% ammonium (NH4)
≤0.005% non-volatile matter

ign. residue

≤0.0005% (as SO4)

color

APHA: ≤10

bp

>100 °C (lit.)

density

1.2 g/mL at 25 °C (lit.)

anion traces

bromide (Br-): ≤0.005%
phosphate (PO43-): ≤0.00005%
sulfate (SO42-): ≤0.0001%
sulfite (SO32-): ≤0.0001%

cation traces

Al: ≤0.000005%
As: ≤0.000001%
Ba: ≤0.000002%
Be: ≤0.000002%
Bi: ≤0.00001%
Ca: ≤0.5 mg/kg
Cd: ≤0.000001%
Co: ≤0.000001%
Cr: ≤0.000002%
Cu: ≤0.000002%
Fe: ≤0.00002%
Ge: ≤0.000005%
K: ≤0.00001%
Li: ≤0.000001%
Mg: ≤0.00001%
Mn: ≤0.000001%
Mo: ≤0.000002%
Na: ≤0.00005%
Ni: ≤0.000002%
Pb: ≤0.000002%
Sr: ≤0.000001%
Ti: ≤0.00001%
Tl: ≤0.000005%
V: ≤0.000001%
Zn: ≤0.000005%
Zr: ≤0.00001%
heavy metals: ≤0.0001% (by ICP-OES)

SMILES string

Cl

InChI

1S/ClH/h1H

InChI key

VEXZGXHMUGYJMC-UHFFFAOYSA-N

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Application



  • Characterization of Miscanthus giganteus lignin isolated by ethanol organosolv process under reflux condition: Hydrochloric acid plays a key role in the organosolv process to isolate lignin from Miscanthus giganteus, which is critical for the development of bio-based chemicals and materials (Bauer et al., 2012).



Packaging

In PE-bottles; also available in Glass-bottles (Material no. ending with *-GL), PE canister and plastic drum (Material no. ending with *-H); 1, 2.5, 4×2.5, 72×2.5 L in glass btl, 1L only available in glass btl.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H290,H314,H335

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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THE HYDROLYSIS OF CHITIN BY CONCENTRATED HYDROCHLORIC ACID, AND THE PREPARATION OF LOW-MOLECULAR-WEIGHT SUBSTRATES FOR LYSOZYME.
J A RUPLEY
Biochimica et biophysica acta, 83, 245-255 (1964-11-01)
Quantitative estimation of sialic acids. II. A colorimetric resorcinol-hydrochloric acid method.
L SVENNERHOLM
Biochimica et biophysica acta, 24(3), 604-611 (1957-06-01)
Daejin Kim et al.
Environmental science & technology, 49(16), 9452-9459 (2015-06-25)
The rare earth elements (REEs) such as neodymium, praseodymium, and dysprosium were successfully recovered from commercial NdFeB magnets and industrial scrap magnets via membrane assisted solvent extraction (MSX). A hollow fiber membrane system was evaluated to extract REEs in a

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