MilliporeSigma
All Photos(4)

Documents

326372

Sigma-Aldrich

Ammonium chloride

99.99% trace metals basis

Sign Into View Organizational & Contract Pricing

Synonym(s):
Salmiac
Linear Formula:
NH4Cl
CAS Number:
Molecular Weight:
53.49
Beilstein:
4371014
EC Number:
MDL number:
eCl@ss:
38050207
PubChem Substance ID:
NACRES:
NA.23

vapor density

1.9 (vs air)

vapor pressure

1 mmHg ( 160.4 °C)

Assay

99.99% trace metals basis

form

crystalline

impurities

≤150.0 ppm Trace Metal Analysis

mp

340 °C (subl.) (lit.)

SMILES string

N.Cl

InChI

1S/ClH.H3N/h1H;1H3

InChI key

NLXLAEXVIDQMFP-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
21333031107A9434
Ammonium chloride 99.99% trace metals basis

Sigma-Aldrich

326372

Ammonium chloride

-
Ammonium chloride ACS reagent, ≥99.5%

Sigma-Aldrich

213330

Ammonium chloride

-
Ammonium chloride puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

Sigma-Aldrich

31107

Ammonium chloride

Essential Grade
Ammonium chloride for molecular biology, suitable for cell culture, ≥99.5%

Sigma-Aldrich

A9434

Ammonium chloride

-
assay

99.99% trace metals basis

assay

≥99.5%

assay

≥99.5%

assay

≥99.5%

form

crystalline

form

powder, crystals or chunks

form

crystalline powder

form

powder or crystals

impurities

≤150.0 ppm Trace Metal Analysis

impurities

≤0.005% insolubles

impurities

-

impurities

-

mp

340 °C (subl.) (lit.)

mp

340 °C (subl.) (lit.)

mp

340 °C (subl.) (lit.)

mp

340 °C (subl.) (lit.)

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

General description

NH4Cl is highly corrosive, colorless salt which dissolves readily in water. It crystallizes out of aqueous solution in octahedrons, in a feathery array, forming a fibrous mass of crystals. It sublimes at 340oC. Ammonium chloride acts as catalyst in one-pot,Biginelli condensation reactions of aldehydes, 1,3-dicarbonyl compounds and urea or thiourea. Inorganic ammonium ions, NH4+, have been reported as efficient catalysts for the aldol condensation of carbonyl compounds.NH4Cl has been reportedly used to enhance the hydrolysis rate and decrease the activation energy of magnesium hydride during hydrogen generation.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 7

1 of 7

Ammonium chloride anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%

Sigma-Aldrich

901230

Ammonium chloride

Ammonium chloride EMPROVE® ESSENTIAL, Ph. Eur., BP, USP

SAFC

1.01142

Ammonium chloride

Ammonium chloride puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, 99.5-100.5% (calc. to the dried substance)

Sigma-Aldrich

11209

Ammonium chloride

Ammonium bromide 99.999% trace metals basis

Sigma-Aldrich

380008

Ammonium bromide

Ammonium chloride puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%

Sigma-Aldrich

31107

Ammonium chloride

Wiberg E, Wiberg N et al.
Inorganic Chemistry, 614-614 (2001)
Hydrogen generation by hydrolysis of MgH2 and enhanced kinetics performance of ammonium chloride introducing
Huang M, et al.
International Journal of Hydrogen Energy, 40(18), 6145-6150 (2015)
Ammonium chloride-catalyzed one-pot synthesis of 3,4-dihydropyrimidin-2-(1H)-ones under solvent-free conditions.
Shaabani A, et al.
Tetrahedron Letters, 44(4), 857-859 (2003)
Barbara Nozière et al.
Physical chemistry chemical physics : PCCP, 12(15), 3864-3872 (2010-04-02)
In natural environments such as atmospheric aerosols, organic compounds coexist with inorganic salts but, until recently, were not thought to interact chemically. We have recently shown that inorganic ammonium ions, NH(4)(+), act as catalysts for acetal formation from glyoxal, a
Ammonium chloride-catalyzed one-pot synthesis of 3,4-dihydropyrimidin-2-(1H)-ones under solvent-free conditions
Shaabani A, et al
Tetrahedron Letters, 44, 857-859 (2003)

Articles

The aldol condensation reaction is an organic reaction introduced by Charles Wurtz, who first prepared the β-hydroxy aldehyde from acetaldehdye in 1872.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service