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221228

Sigma-Aldrich

Ammonium hydroxide solution

Ammonium hydroxide solution
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ACS reagent, 28.0-30.0% NH3 basis

Szinonimák:

Ammonia aqueous, Ammonia water

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About This Item

Lineáris képlet:
NH4OH
CAS-szám:
1336-21-6
Molekulatömeg:
35.05
Beilstein:
3587154
MDL-szám:
MFCD00066650
UNSPSC kód:
12352106
eCl@ss:
38060103
PubChem Substance ID:
329752250
NACRES:
NA.21
Az árazás és az elérhetőség jelenleg nem elérhető

grade

ACS reagent

Minőségi szint

200

Forma

liquid

öngyulladási hőmérséklet

1204 °F

robbanási határérték

27 %

koncentráció

28.0-30.0% NH3

szennyeződések

MnO4- reducers, passes test
≤0.002% CO2

izzítási maradék

≤0.002%

pH

11.7 (20 °C)

sűrűség

0.9 g/mL at 25 °C (lit.)

anion nyomok

chloride (Cl-): ≤0.5 ppm
nitrate (NO3-): ≤2 ppm
phosphate (PO43-): ≤2 ppm
sulfate (SO42-): ≤2 ppm

kation nyomok

Fe: ≤0.2 ppm
heavy metals: ≤0.5 ppm (by ICP)

tárolási hőmérséklet

2-8°C

SMILES string

[NH4+].[OH-]

InChI

1S/H3N.H2O/h1H3;1H2

Nemzetközi kémiai azonosító kulcs

VHUUQVKOLVNVRT-UHFFFAOYSA-N

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Általános leírás

Ammonium hydroxide is a weak base mainly used as a source to prepare other ammonium compounds like urea, ammonium carbonate and ammonium sulfate etc.[1]

Alkalmazás

Ammonium hydroxide solution may be used:
  • As a medium to prepare magnetite (Fe3O4) nanoparticles via a modified controlled chemical coprecipitation method.[2]
  • As a solvent and reagent to prepare 4-aryl and 4-alkyl-2,6-dimethyl-1,4-dihydro-3,5-pyridinedicarboxylates via Hantzsch synthesis in a microwave cavity synthesizer.[3]

Kiszerelés

View returnable container options.

Egyéb megjegyzések

ACS specifications same for product 320145
2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

Figyelmeztetés

Danger

Figyelmeztető mondatok

H314,H335,H410

Veszélyességi osztályok

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1 - STOT SE 3

Célzott szervek

Respiratory system

Tárolási osztály kódja

8B - Non-combustible corrosive hazardous materials

WGK

WGK 2

Lobbanási pont (F)

Not applicable

Lobbanási pont (C)

Not applicable

Válasszon a legfrissebb verziók közül:

Analitikai tanúsítványok (COA)

Lot/Batch Number
MKCX0380
MKCX0757
MKCW9315
SHBS4120
MKCV5396

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COA keresése

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Dokumentumtár megtekintése

Christie Ying Kei Lung et al.
Dental materials journal, 32(1), 165-172 (2013-02-02)
The effect of silica-coating by sol-gel process on the bond strength of resin composite to zirconia was evaluated and compared against the sandblasting method. Four groups of zirconia samples were silica-coated by sol-gel process under varied reagent ratios of ethanol
Ramakrishna A
Goyal?s IIT foundation course chemistry: For Class-9, 160-160 (2014)
Synthesis and characterization of biocompatible Fe3O4 nanoparticles.
Sun J, et al.
Journal of Biomedical Materials Research Part A, 80(2), 333-341 (2007)
An efficient and fast procedure for the Hantzsch dihydropyridine synthesis under microwave conditions.
Oehberg L and Westman J
Synlett, 2001(08), 1296-1298 (2001)
Isolation and characterization of mesenchymal stem cells.
Odabas SA, et al.
Bone Marrow and Stem Cell Transplantation., 47-63 (2014)
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Questions

1–2 of 2 Questions  

  1. 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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  2. 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/449/386/product-dating-information-mk.pdf

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