Potassium nitrate
SIAL/NIST193 - NIST® SRM® 193
CAS Number: 7757-79-1
Empirical Formula (Hill Notation): KNO3
Molecular Weight: 101.10
MDL Number: MFCD00011409
Linear Formula: KNO3
Product Type: Chemical
| application(s) | agriculture |
| format | neat |
| grade | certified reference material |
| InChI | 1S/K.NO3/c;2-1(3)4/q+1;-1 |
| InChI key | FGIUAXJPYTZDNR-UHFFFAOYSA |
| manufacturer/tradename | NIST® |
| mp | 334 °C (lit.) |
| packaging | pkg of 90 g |
| Quality Level | 100  |
| SMILES string | [K+].[O-][N+]([O-])=O |
| 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. |
| General description: | Each unit of SRM193 contains 90 g of highly purified and homogeneous crystalline potassium nitrate nitrogen. SRM 193 _SDS  SRM 193 _CoA |
| Legal Information: | NIST is a registered trademark of National Institute of Standards and Technology |
| Legal Information: | SRM is a registered trademark of National Institute of Standards and Technology |
| Other Notes: | Certified for the analytes listed below. Potassium (K), Nitrogen (N) See certificate for values and more details at nist.gov/SRM. |
| Symbol |  GHS03 |
| Signal word | Warning |
| Hazard statements | H272 |
| Precautionary statements | P210 - P220 - P280 - P370 + P378 - P501 |
| RIDADR | UN 1486 5.1 / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| mp | 334 °C (lit.) |
| UNSPSC | 41116107 |