NIST193

Potassium nitrate

NIST^® SRM^® 193

• Empirical Formula (Hill Notation): KNO₃
• CAS Number: 7757-79-1
• Molecular Weight: 101.10
• MDL number: MFCD00011409
• UNSPSC Code: 41116107
• PubChem Substance ID: 329818724
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 100
• packaging: pkg of 90 g
• manufacturer/tradename: NIST^®
• mp: 334 °C (lit.)
• application(s): agriculture
• format: neat
• SMILES string: [K+].[O-][N+]([O-])=O
• InChI: 1S/K.NO3/c;2-1(3)4/q+1;-1
• InChI key: FGIUAXJPYTZDNR-UHFFFAOYSA-N

Description

General description

Each unit of SRM193 contains 90 g of highly purified and homogeneous crystalline potassium nitrate nitrogen.

SRM 193 _SDS

SRM 193 _CoA

Application

Potassium nitrate standard reference material (SRM) is intended for use as a working standard in determining the levels of potassium and nitrate nitrogen in fertilizer industry.

Features and Benefits

• SRM 193 is available with a certificate documenting NIST-certified mass fraction values of potassium and nitrogen.
• Certified values are determined using gravimetric assay.

Other Notes

Certified for the analytes listed below.
Potassium (K), Nitrogen (N)

See certificate for values and more details at nist.gov/SRM.

Legal Information

NIST is a registered trademark of National Institute of Standards and Technology

SRM is a registered trademark of National Institute of Standards and Technology

Safety Information

• pictograms: GHS03
• signalword: Warning
• hcodes: H272
• pcodes: P210 - P220 - P280 - P370 + P378 - P501
• Hazard Classifications: Ox. Sol. 3
• Storage Class: 5.1B - Oxidizing hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable