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Merck

31263

Potassium nitrate

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99%

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100 G

24,60 €

500 G

42,00 €

1 KG

70,50 €

6 X 1 KG

317,00 €

24,60 €

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Informazioni su questo articolo

Formula empirica (notazione di Hill):
KNO3
Numero CAS:
7757-79-1
Peso molecolare:
101.10
Numero CE:
231-818-8
Numero MDL:
MFCD00011409
Codice UNSPSC:
12352302
ID PubChem:
329753710
NACRES:
NB.24

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Grado

ACS reagent
puriss. p.a.

agenzia

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

Saggio

≥99%

Stato

crystalline

Impurezze

≤0.001% ammonium (NH4)
≤0.005% water insolubles

pH

5.5-7.5 (20 °C, 5%)

Punto di fusione

334 °C (lit.)

Anioni in tracce

chloride (Cl-): ≤10 mg/kg
iodate (IO3-): ≤5 mg/kg
nitrite (NO2-): ≤10 mg/kg
phosphate (PO43-): ≤5 mg/kg
sulfate (SO42-): ≤20 mg/kg

Cationi in tracce

Ca: ≤10 mg/kg
Cu: ≤5 mg/kg
Fe: ≤2 mg/kg
Mg: ≤20 mg/kg
Na: ≤50 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
heavy metals: ≤5 ppm (by ICP-OES)

Stringa SMILE

[K+].[O-][N+]([O-])=O

InChI

1S/K.NO3/c;2-1(3)4/q+1;-1
FGIUAXJPYTZDNR-UHFFFAOYSA-N

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Questo articolo
2212951.05061NIST193
Potassium nitrate puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99%

Sigma-Aldrich

31263

Potassium nitrate

Potassium nitrate ACS reagent, ≥99.0%

Sigma-Aldrich

221295

Potassium nitrate

Potassium nitrate EMPROVE® ESSENTIAL, Ph. Eur., BP, USP, FCC, E 252

SAFC

1.05061

Potassium nitrate

Potassium nitrate NIST® SRM® 193

NIST193

Potassium nitrate

form

crystalline

form

crystals

form

solid

form

-

assay

≥99%

assay

≥99.0%

assay

-

assay

-

Quality Level

200

Quality Level

200

Quality Level

500

Quality Level

100

grade

ACS reagent, puriss. p.a.

grade

ACS reagent

grade

-

grade

certified reference material

anion traces

chloride (Cl-): ≤10 mg/kg, nitrite (NO2-): ≤10 mg/kg, sulfate (SO42-): ≤20 mg/kg, iodate (IO3-): ≤5 mg/kg, phosphate (PO43-): ≤5 mg/kg

anion traces

chloride (Cl-): ≤0.002%, iodate (IO3-): ≤5 ppm, nitrite (NO2-): ≤0.001, phosphate (PO43-): ≤5 ppm, sulfate (SO42-): ≤0.003%

anion traces

-

anion traces

-

mp

334 °C (lit.)

mp

334 °C (lit.)

mp

334 °C

mp

334 °C (lit.)

Descrizione generale

Potassium nitrate (KNO3) is a water-soluble inorganic salt that is commonly used as a source of nitrate ions. It is also used as a cocatalyst in various organic transformations.

Applicazioni

Potassium nitrate can be used in the following:      
  • KNO3/Al2O3 is used as a base heterogeneous catalyst in the production of biodiesel via transesterification reaction. 
  • KNO3/Br2 catalytic system is used for the aerobic oxidations of sulfides and alcohols.

Pittogrammi

Flame over circle
GHS03

Avvertenze

Warning

Indicazioni di pericolo

H272

Classi di pericolo

Ox. Sol. 3

Codice della classe di stoccaggio

5.1B - Oxidizing hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
SDBB4939
SDBB4938
SDBB1999
SDBB2000
STBL4351

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Domande

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

    1 risposta

    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

      Utile?

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

    1 risposta

    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

      Utile?

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