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326372

Ammonium chloride

99.99% trace metals basis

Synonym(s):

Salmiac

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Size/SKUAvailabilityPrice
25 g
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$66.70
100 g
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$187.00
500 g
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$673.00
$504.75

About This Item

Linear Formula:
NH4Cl
CAS Number:
Molecular Weight:
53.49
NACRES:
NA.23
PubChem Substance ID:
eCl@ss:
38050207
UNSPSC Code:
12352302
EC Number:
235-186-4
MDL number:
Beilstein/REAXYS Number:
4371014
Assay:
99.99% trace metals basis
Form:
crystalline

$66.70


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vapor density

1.9 (vs air)

Quality Segment

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

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.[1]NH4Cl has been reportedly used to enhance the hydrolysis rate and decrease the activation energy of magnesium hydride during hydrogen generation.

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This Item
A451490123031107
description

99.99% trace metals basis

description

ReagentPlus®, ≥99.5%

description

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

description

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

form

crystalline

form

powder or crystals

form

powder or crystals

form

crystalline powder

assay

99.99% trace metals basis

assay

≥99.5%

assay

≥99.5%

assay

≥99.5%

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

200

mp

340 °C (subl.) (lit.)

mp

340 °C (subl.) (lit.)

mp

340 °C (subl.) (lit.)

mp

340 °C (subl.) (lit.)

vapor pressure

1 mmHg ( 160.4 °C)

vapor pressure

1 mmHg ( 160.4 °C)

vapor pressure

1 mmHg ( 160.4 °C)

vapor pressure

1 mmHg ( 160.4 °C)

impurities

≤150.0 ppm Trace Metal Analysis

impurities

-

impurities

≤0.005% insolubles

impurities

-


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pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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