Search through
Potassium Nitrate

Potassium Nitrate

CAS Number: 7757-79-1

Molecular Formula: KNO3

Nitrogen-containSaltpeterSaltpetreCore macronutrient (N,K) fertilizer

About Potassium Nitrate

Potassium Nitrate (KNO₃) (CAS 7757-79-1) is a high-purity, water-soluble inorganic salt widely used across industrial manufacturing, specialty chemical processing, and regulated commercial applications in the United States. As a strong oxidizing agent, it provides a stable, controlled source of potassium and nitrate io...

Synonyms

  • potassium nitrate
  • potassium nitrate monohydrate
  • saltpeter
  • saltpetre
  • POTASSIUM NITRATE
View all

Potassium Nitrate Specifications

CAS Number
7757-79-1
Molecular Formula
KNO3
Molecular Weight
101.103
IUPAC Name
potassium;nitrate
Canonical SMILES
[N+](=O)([O-])[O-].[K+]
InChI Key
FGIUAXJPYTZDNR-UHFFFAOYSA-N
InChI
1S/K.NO3/c;2-1(3)4/q+1;-1
EINECS Number
231-818-8
MDL Number
MFCD00011039
UNSPSC Code
12352102
HSN No
2834219000
Molecular Weight
101.103
Boiling point
400ºC
Melting point
334ºC
Physical State
Colourless crystals or white powder
Solubility
320 g/L (20 ºC)
PSA
68.880
LogP
0.28410
Density
2.109
GHS Code
GHS03, GHS07
P statements code
P210; P280; P304 + P340 + P312
H statements code
H272; H335

Agrochemicals & Fertilizers

Used as a highly efficient water-soluble fertilizer in fertigation and hydroponics, potassium nitrate delivers nitrate nitrogen and potassium for rapid plant uptake, improves crop yield and quality, and is widely preferred for chloride-sensitive crops, greenhouse cultivation, and precision agriculture programs across the USA.

Industrial & Chemical Manufacturing

Functions as a reliable oxidizing agent and nitrate source in specialty chemical synthesis, process chemistry, and formulation systems requiring controlled reactivity and high solubility.

Food Processing

Utilized as a curing and preservation agent in regulated meat processing applications, supporting color retention and microbial stability under controlled conditions.

Glass & Ceramics

Applied in glass refining and ceramic processing to enhance clarity, strength, and thermal resistance during high-temperature manufacturing.

Metallurgy & Heat Treatment

Used in molten salt baths for metal hardening, tempering, and surface treatment processes in industrial manufacturing.

Detail 1

Stable

Detail 2

Strong oxidizer - contact with combustible material may cause fire

Detail 3

Incompatible with combustible materials, strong reducing agents

Detail 4

Store at RT

  1. potassium nitrate
  2. potassium nitrate monohydrate
  3. saltpeter
  4. saltpetre
  5. POTASSIUM NITRATE

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

Rounded Top

Explore Industrial Chemicals Portfolio

Rosin Modified Phenolic resins

CAS No : 68082-96-2

Rosin Modified Phenolic resins

Category : Industrial Polymers

Sub-Category : Rosin-Based Resins & Binders

Description : Our Rosin Modified Phenolic Resins are high-performance complex polymers engineered through the cond...

View Product
Rosin Modified Maleic Resins

CAS No : 94581-16-5

Rosin Modified Maleic Resins

Category : Industrial Polymers

Sub-Category : Rosin-Based Resins & Binders

Description : Our Rosin Modified Maleic Resins are high-melting thermoplastic resins engineered through the precis...

View Product
Phenol Formaldehyde Resins (Can Coatings)

CAS No : 68002-19-7

Category : Industrial Polymers

Sub-Category : Metal Packaging & Can Coatings

Description : Our Phenol Formaldehyde Resins are high-performance thermosetting polymers specifically engineered f...

View Product
Hard Ketone Aldehyde Resins (Pigment paste)

CAS No : 25054-06-2

Category : Industrial Polymers

Sub-Category : Specialty Pigment Binders & Synthetic Resins

Description : Our Hard Ketone Aldehyde Resins are condensation polymers specifically developed for the ink, coatin...

View Product