potassium nitrate

• ChemBase ID: 105584
• Molecular Formular: KNO3
• Molecular Mass: 101.1032
• Monoisotopic Mass: 100.95152455
• SMILES: [K+].[O-][N+](=O)[O-]
• Canonical SMILES: [O-][N+](=O)[O-].[K+]
• InChI: InChI=1S/K.NO3/c;2-1(3)4/q+1;-1
• InChIKey: FGIUAXJPYTZDNR-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: potassium nitrate; potassium nitrooxidane
• IUPAC Traditional name: potassium nitrate; potassium nitronate
• Synonyms: Potassium nitrate; Mettler-Toledo® Calibration substance ME 51143095, Potassium nitrate; Potassium standard for IC; Potassium nitrate solution; Nitrate ion standard solution; Kalii nitras; Saltpetre; Nitrate of potash; Potassium nitrate solution; Potassium nitrate, ACS; Potassium nitrate, Puratronic®; Potassium nitrate; POTASSIUM NITRATE, U.S.P.; POTASSIUM NITRATE; Niter; Nitre; Nitric Acid, Potassium Salt; Saltpeter; Vicknite; POTASSIUM NITRATE ACS REAGENT GRADE; Nitrate nitrogen standard solution; Mettler-Toledo® 校准物质 ME 51143095，硝酸钾; 钾 IC 标准溶液; 硝酸钾 溶液; 硝酸根离子标准溶液; 硝酸钾; 硝酸钾 溶液; 硝酸钾, ACS; 硝酸钾, Puratronic®; 硝酸钾; Nitrate nitrogen standard solution

Database IDs

• CAS Number: 7757-79-1
• EC Number: 231-818-8; 231-791-2
• MDL Number: MFCD00011409
• Merck Index: 147648
• PubChem SID: 24859148; 24881782; 24852201; 24881880; 24853226; 24878578; 24898644; 24898747; 162092149; 24881875; 24898742; 24858902; 24898728; 24847728
• PubChem CID: 24434
• CHEMBL: 1644029
• Chemspider ID: 22843
• KEGG ID: D02051
• Unique Ingredient Identifier: RU45X2JN0Z
• Wikipedia Title: Potassium_nitrate

CALCULATED PROPERTIES

• Acid pKa: -1.3999903
• H Acceptors: 3
• H Donor: 0
• LogD (pH = 5.5): 0.8368004
• LogD (pH = 7.4): 0.8368004
• Log P: 0.8368004
• Molar Refractivity: 8.3471 cm^3
• Polarizability: 3.4222581 Å^3
• Polar Surface Area: 66.2 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: 133 g/L (0 °C); 383 g/L (25 °C); 2470 g/L (100 °C) in water; H2O: soluble1 M at 20 °C, clear, colorless; slightly soluble in ethanol; soluble in glycerol, ammonia; Soluble in water, glycerol, liquid NH3
• Apperance: crystalline; Crystalline; Powder; white crystalline; white solid
• Melting Point: 334 °C; 334 °C(lit.); 334 °C; 334°C
• Boiling Point: 400 °C decomp.; 400°C dec.; decomposition prior to boiling
• Flash Point: Non-flammable
• Density: 1 g/mL at 25 °C(lit.); 1.00 g/mL at 20 °C; 2.109; 2.109 g/cm^3 (16 °C); 2.109 g/cm^3 at 16 °C
• Refractive Index: 1.5056
• pKa: ~7
• Odor: odorless
• pH: 4.5-8.5 (25 °C, 5%); 4.5-8.5 (25 °C, 50 mg/mL in H2O); 5.0-8.0 (25 °C, 1 M in H2O); 5.5-7.5 (20 °C, 5%); 5-8 (20 °C, 5%)

Safety Information

• Storage Condition: Room Temperature (15-30°C)
• Storage Warning: Hygroscopic
• RTECS: TT3700000
• European Hazard Symbols: Oxidising (O); Harmful (Xn)
• UN Number: 1486; UN1486
• German water hazard class: 1; nwg
• Hazard Class: 5.1
• Packing Group: 3; III
• Australian Hazchem: 1Z
• Risk Statements: 8; R:9-18-22; R8 R22 R36 R37 R38
• Safety Statements: 16-17-41-60; S:13-16-27-36/37/39; S7 S16 S17 S26 S36 S41
• EU Classification: O2
• EU Hazard Identification Number: 5.1B
• Emergency Response Guidebook(ERG) Number: 140
• TSCA Listed: 是
• EU Index: Not listed
• GHS Pictograms: GHS03
• GHS Signal Word: Warning
• Main Hazard: Oxidant, Harmful if swallowed, Inhaled, or absorbed on skin. Causes Irritation to Skin and Eye area.
• NFPA704:
  

  0

  1

  0

  OX
• LD50: 3750 mg/kg
• GHS Hazard statements: H272; H272-H303
• GHS Precautionary statements: P220; P221-P210-P220-P280-P312-P501A
• Personal Protective Equipment: Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter; Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges; Eyeshields, Gloves
• RID/ADR: UN 1486 5.1/PG 3

Product Information

• Purity: ≥98%; ≥98.0% (T); ≥99%; ≥99.0%; ≥99.0% (T); ≥99.5% (T); ≥99.995% (metals basis); 99%; 99.0% min; 99.0-100.5%; 99.99% trace metals basis; 99.994% (metals basis); 99.997% (metals basis); 99.999% trace metals basis
• Concentration: 0.01 M NO3-; 0.1 M NO3-; 0.1 mg/mL in H2O; 1.000 g/L; 100 ppm NO3-; in H2O
• Grade: ACS; ACS reagent; ACS reagent, reag. ISO, reag. Ph. Eur.; for ion-selective electrodes; for trace analysis; JIS special grade; Ph Eur; puriss.; puriss. p.a.; purum p.a.; REAGENT; SAJ first grade; TECHNICAL; technical; TraceSELECT®; USP
• Suitability: cell culture tested; complies for appearance of solution; suitable for cell culture; suitable for photographic applications; suitable for plant cell culture
• Impurities: <0.0005% Phosphorus (P); <0.01% Insoluble matter; ≤0.0005% heavy metals (as Pb); ≤0.001% ammonium (NH4); ≤0.001% heavy metals (as Pb); ≤0.002% heavy metals (as Pb); ≤0.005% ammonium (NH4); ≤0.005% insolubles; ≤0.005% water insolubles; ≤0.1% water insoluble matters; ≤1.0% anticaking agent (Tixosil); acidity or alkalinity, complies; insoluble matter, passes filter test; reducing matter, complies; residual solvents, complies
• Cation Traces: Ag: ≤5 mg/kg; Al: <0.0005%; Al: ≤0.05 mg/kg; Al: ≤5 mg/kg; As: ≤0.05 mg/kg; As: ≤0.1 mg/kg; As: ≤1 mg/kg; Ba: ≤1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: <0.0005%; Ca: ≤0.005%; Ca: ≤0.1 mg/kg; Ca: ≤10 mg/kg; Ca: ≤50 mg/kg; Cd: ≤0.005 mg/kg; Cd: ≤5 mg/kg; Cd: ≤50 mg/kg; Ce: ≤0.005 mg/kg; Co: ≤0.005 mg/kg; Co: ≤5 mg/kg; Co: ≤50 mg/kg; Cr: ≤0.01 mg/kg; Cr: ≤5 mg/kg; Cs: ≤5 mg/kg; Cu: <0.0005%; Cu: ≤0.005 mg/kg; Cu: ≤10 mg/kg; Cu: ≤5 mg/kg; Cu: ≤50 mg/kg; Eu: ≤0.005 mg/kg; Fe: <0.0005%; Fe: ≤0.05 mg/kg; Fe: ≤10 mg/kg; Fe: ≤2 mg/kg; Fe: ≤20 mg/kg; Fe: ≤3 ppm; Fe: ≤50 mg/kg; heavy metals (as Pb): ≤5 ppm; Hg: ≤0.005 mg/kg; La: ≤0.005 mg/kg; Li: ≤0.2 mg/kg; Li: ≤5 mg/kg; Mg: <0.0005%; Mg: ≤0.002%; Mg: ≤0.1 mg/kg; Mg: ≤20 mg/kg; Mg: ≤5 mg/kg; Mg: ≤50 mg/kg; Mn: ≤0.005 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: <0.005%; Na: ≤0.005%; Na: ≤1000 mg/kg; Na: ≤20 mg/kg; Na: ≤200 mg/kg; Na: ≤50 mg/kg; NH4+: <0.05%; NH4+: ≤10 mg/kg; Ni: ≤0.005 mg/kg; Ni: ≤5 mg/kg; Ni: ≤50 mg/kg; Pb: <0.001%; Pb: ≤0.005 mg/kg; Pb: ≤4 mg/kg; Pb: ≤5 mg/kg; Pb: ≤50 mg/kg; Rb: ≤30 mg/kg; Sc: ≤0.005 mg/kg; Sm: ≤0.005 mg/kg; Sr: ≤0.1 mg/kg; Sr: ≤5 mg/kg; Tl: ≤0.005 mg/kg; Tl: ≤5 mg/kg; Y: ≤0.005 mg/kg; Yb: ≤0.005 mg/kg; Zn: <0.0005%; Zn: ≤0.01 mg/kg; Zn: ≤10 mg/kg; Zn: ≤5 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: chloride (Cl-): <0.002%; chloride (Cl-): ≤0.002%; chloride (Cl-): ≤10 mg/kg; chloride (Cl-): ≤300 mg/kg; chloride (Cl-): ≤5 mg/kg; chloride (Cl-): ≤500 mg/kg; iodate (IO3-): ≤5 mg/kg; iodate (IO3-): ≤5 ppm; nitrite (NO2-): ≤0.001; nitrite (NO2-): ≤10 mg/kg; nitrite (NO2-): ≤5 mg/kg; phosphate (PO43-): ≤5 mg/kg; phosphate (PO43-): ≤5 ppm; sulfate (SO42-): <0.003%; sulfate (SO42-): ≤0.003%; sulfate (SO42-): ≤100 mg/kg; sulfate (SO42-): ≤20 mg/kg; sulfate (SO42-): ≤200 mg/kg; sulfate (SO42-): ≤30 mg/kg; sulfate (SO42-): ≤300 mg/kg
• Shelf Life: (limited shelf life, expiry date on the label)
• Loss on Drying: ≤0.1% loss on drying, 110 °C; ≤0.5% loss on drying, 105 °C
• Quality: meets analytical specification of Ph Eur, BP, USP, FCC, E252; traceable to primary standards (LGC); with addition of anti-caking agent
• Pharmacopeia: testing & handling conforms to Pharmacopeia
• Product Line: BioUltra
• abs.: absorption1M/328 nm, H2O cut-off
• Linear Formula: KNO3
• Empirical Formula (Hill Notation): KNO3

DETAILS

MP Biomedicals - 02191428

ACS Reagent Grade
Insoluble Matter: =0.005%
Crystalline

MP Biomedicals - 02199401

Technical Grade
Insoluble Matter: ≤0.005%
Crystalline
NOT FOR EXPORT.

Sigma Aldrich - P6030

包装
1 kg in poly bottle
500 g in poly bottle

Sigma Aldrich - 60414

Other Notes
Substrate for the assay of nitrate reductase1; Component of media for testing bacterial nitrate reduction.

Sigma Aldrich - P8291

包装
1 kg in poly bottle
5 kg in poly drum
25 kg in fiber drum

Sigma Aldrich - 60415

Analysis Note
anticaking agent added

Sigma Aldrich - 49143

Application
For the calibration of METTLER TOLEDO® melting point instruments.
Legal Information
Mettler-Toledo is a registered trademark of Mettler-Toledo, Inc.

Sigma Aldrich - P6083

包装
1 kg in poly bottle
500 g in poly bottle

Sigma Aldrich - P8394

包装
1, 2.5 kg in poly bottle
500 g in poly bottle
法律信息
ReagentPlus 注册商标 Sigma-Aldrich Co. LLC

Sigma Aldrich - 72545

General description
Visit our Sensor Applications portal to learn more.
Preparation Note
prepared with KNO3 and H2O

Sigma Aldrich - 60037

General description
filtered through a 0.45 μm membrane filter
Preparation Note
prepared with KNO3 and H2O

Sigma Aldrich - 204110

Packaging
50, 250 g in poly bottle
Application
Anodic chamber solute for the electrochemical synthesis of a LaMnO3 thin film coating on stainless steel substrates.1

Sigma Aldrich - 221295

Packaging
100, 500 g in poly bottle
12 kg in fiber drum
2.5 kg in poly bottle

Sigma Aldrich - 72544

General description
Visit our Sensor Applications portal to learn more.
Preparation Note
prepared with KNO3 and H2O

Sigma Aldrich - 60429

Legal Information
TraceSELECT is a registered trademark of Sigma-Aldrich Co. LLC

Sigma Aldrich - 60419

Other Notes
Oxidizing agent for decomposition by fusion1,2

Sigma Aldrich - 542040

Packaging
10, 50 g in poly bottle

REFERENCES

• In combination with SO₂Cl₂, aromatic thiols are converted to sulfonyl chlorides: Chem. Lett., 1483 (1992).
• In combination with BF₃ etherate, aromatic rings are nitrated: Synthesis, 1087 (1992).
• In the presence of hydrated BF₃, alkyl nitrates free of the nitrite can be prepared: Synthesis, 207 (1993).