Name: Potassium Nitrate
CAS: 7757-79-1
EC Number: 231-818-8
Chemical Formular: KNO3
Appearance: colourless
Molecular Weight: 101.102 g/mol
Melting Point: 334 °C (633 °F; 607 K)
Boiling Point: 400 °C (752 °F; 673 K)
Density: 2.109 g/cm3 (16 °C)
Solubility in water: soluble
Exact Mass: 100.952 g/mol
Monoisotopic Mass: 100.952 g/mol
Topological Polar Surface Area: 62.9 A^2
Complexity: 18.8
MATERIAL SAFETY DATA SHEETS
According to the UN GHS revision 8
SECTION 1: Identification
1.1
GHS Product identifier
| Product name | Potassium Nitrate |
|---|
1.2
Other means of identification
| Product number | – |
|---|---|
| Other names | Potassium nitrate; |
1.3
Recommended use of the chemical and restrictions on use
| Identified uses | Food additives |
|---|---|
| Uses advised against | no data available |
1.4
Supplier’s details
| Company | Elements China Limited |
|---|---|
| Address | Building 2, No.5555, Shenzhuan Hwy, Shanghai , China |
| Telephone | +86-021-3776-2181 |
1.5Emergency phone number
| Emergency phone number | +86-021-3776-2181 |
|---|---|
| Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
SECTION 2: Hazard identification
2.1
Classification of the substance or mixture
Oxidizing solids, Category 3
2.2
GHS label elements, including precautionary statements
| Pictogram(s) |  |
|---|---|
| Signal word | Warning |
| Hazard statement(s) | H272 May intensify fire; oxidizer |
| Precautionary statement(s) | |
| Prevention | P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P220 Keep away from clothing and other combustible materials. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/… |
| Response | P370+P378 In case of fire: Use … to extinguish. |
| Storage | none |
| Disposal | P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal. |
2.3
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
3.1
Substances
| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| Potassium Nitrate | Potassium nitrate | 7757-79-1 | 231-818-8 |
SECTION 4: First-aid measures
4.1
Description of necessary first-aid measures
If inhaled
Fresh air, rest. Refer for medical attention.
Following skin contact
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Following eye contact
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Following ingestion
Rinse mouth. Refer for medical attention .
4.2
Most important symptoms/effects, acute and delayed
Exposure can cause mild irritation of eyes, nose and throat. (USCG, 1999)
4.3
Indication of immediate medical attention and special treatment needed, if necessary
Maintain an open airway and assist ventilation if necessary. Administer supplemental oxygen. Treat hypotension with supine positioning, intravenous crystalloid fluids, and a low dose -pressor if needed. Monitor vital signs and ECG for 4 to 6 hours. Symptomatic methemoglobinemia may be treated with methylene blue. … Administer activated charcoal. Gastric emptying is not necessary for small ingestions if activated charcoal can be given promptly . Hemodialysis and hemoperfusion are not effective. Severe methemoglobinemia in infants not responsive to methylene blue therapy may require exchange transfusion. Nitrates and Nitrites
SECTION 5: Fire-fighting measures
5.1
Suitable extinguishing media
If material on fire or involved in fire: Flood with water. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
5.2
Specific hazards arising from the chemical
Special Hazards of Combustion Products: May produce toxic nitrogen oxides upon decomposition. Behavior in Fire: Strong oxidizer which may react explosively when mixed with reducing agents. Mixture may detonate by heat or shock. Increases the flammability of any combustible material. (USCG, 1999)
5.3
Special protective actions for fire-fighters
In case of fire in the surroundings, use appropriate extinguishing media.
SECTION 6: Accidental release measures
6.1
Personal precautions, protective equipment and emergency procedures
Sweep spilled substance into plastic or glass containers. Wash away remainder with plenty of water.
6.2
Environmental precautions
Sweep spilled substance into plastic or glass containers. Wash away remainder with plenty of water.
6.3
Methods and materials for containment and cleaning up
Sweep spilled substance into plastic or glass containers. Wash away remainder with plenty of water.
SECTION 7: Handling and storage
7.1
Precautions for safe handling
NO contact with combustible substances or reducing agents.
Handling in a well ventilated place.
Wear suitable protective clothing.
Avoid contact with skin and eyes.
Avoid formation of dust and aerosols.
Use non-sparking tools.
Prevent fire caused by electrostatic discharge steam.
7.2
Conditions for safe storage, including any incompatibilities
Separated from combustible substances and reducing agents.Separated from combustible and reducing substances.
SECTION 8: Exposure controls/personal protection
8.1
Control parameters
Occupational Exposure limit values
| Component | Potassium nitrate | |||
|---|---|---|---|---|
| CAS No. | 7757-79-1 | |||
| Limit value – Eight hours | Limit value – Short term | |||
| ppm | mg/m3 | ppm | mg/m3 | |
| Latvia | 5 | |||
| Remarks | ||||
Biological limit values
no data available
8.2
Appropriate engineering controls
Ensure adequate ventilation.
Handle in accordance with good industrial hygiene and safety practice.
Set up emergency exits and the risk-elimination area.
8.3Individual protection measures, such as personal protective equipment (PPE)
Eye/face protection
Wear safety goggles.
Skin protection
Protective gloves.
Respiratory protection
Use local exhaust or breathing protection.
Thermal hazards
no data available
SECTION 9: Physical and chemical properties and safety characteristics
| Physical state | Potassium nitrate is a white to dirty gray crystalline solid. Water soluble. Noncombustible, but accelerates the burning of combustible materials. If large quantities are involved in fire or the combustible material is finely divided an explosion may result. May explode under prolonged exposure to heat or fire. Toxic oxides of nitrogen are produced in fires. Used in solid propellants, explosives, fertilizers. |
|---|---|
| Colour | Colorless, rhombic or trigonal crystals |
| Odour | Odorless |
| Melting point/freezing point | 334ºC |
| Boiling point or initial boiling point and boiling range | 400ºC |
| Flammability | Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire. |
| Lower and upper explosion limit/flammability limit | no data available |
| Flash point | 400ºC |
| Auto-ignition temperature | no data available |
| Decomposition temperature | 400°C |
| pH | 4,5-8,5 (5 % solution) |
| Kinematic viscosity | no data available |
| Solubility | Sol in water, glycerol; slightly sol in alcohol |
| Partition coefficient n-octanol/water | no data available |
| Vapour pressure | no data available |
| Density and/or relative density | 2.109 |
| Relative vapour density | no data available |
| Particle characteristics | no data available |
SECTION 10: Stability and reactivity
10.1
Reactivity
Decomposes on heating. This increases fire hazard. The substance is a strong oxidant. It reacts with combustible and reducing materials.
10.2
Chemical stability
no data available
10.3
Possibility of hazardous reactions
Not combustible but enhances combustion of other substances … Risk of fire and explosion on contact with reducing agents.POTASSIUM NITRATE mixed with alkyl esters may explode, owing to the formation of alkyl nitrates; mixtures with phosphorus, tin (II) chloride, or other reducing agents may react explosively [Bretherick 1979. p. 108-109]. Powdered antimony mixed with potassium nitrate explodes when heated [Mellor 9:282 1946-47]. A mixture of antimony trisulfide and potassium nitrate explodes at a red heat [Mellor 9:524. 1946-47]. Arsenic disulfide forms explosive mixtures when mixed with potassium nitrate, [Mellor 9:270.1946-47]. A mixture of sodium acetate and potassium nitrate may cause an explosion [Pieters 1957. p. 30]. A mixture of potassium nitrate and sodium hypophosphite constitutes a powerful explosive [Mellor 8:881. 1946-47]. A mixture of powdered zirconium and potassium nitrate explodes when heated above the melting point [Mellor 7:116. 1946-47].
10.4
Conditions to avoid
no data available
10.5
Incompatible materials
A micro Parr calorimeter exploded when the wrong proportions of these ingredients were used. The intended mixture was 4.0 g sodium peroxide, 0.2 g dextrose, and 0.2 g potassium nitrate; actual proportions were 0.35 g, 2.59 g, and 0.2 g respectively. There was insufficient sodium peroxide to dissolve decomposition gases, hence a rapid temp and pressure build-up caused the Parr bomv to burst.
10.6
Hazardous decomposition products
When heated to decomp it emits very toxic fumes of /nitrogen oxides & dipotassium oxide/.
SECTION 11: Toxicological information
Acute toxicity
- Oral: LD50 Rabbit oral 1901 mg/kg
- Inhalation: no data available
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
no data available
Reproductive toxicity
no data available
STOT-single exposure
The substance is irritating to the eyes, skin and respiratory tract. Ingestion could cause effects on the blood. This may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.
STOT-repeated exposure
no data available
Aspiration hazard
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
SECTION 12: Ecological information
12.1
Toxicity
- Toxicity to fish: LC50; Species: Lepomis macrochirus (Bluegill); Conditions: freshwater; static; Concentration: 5500 mg/L for 24 hr /total
- Toxicity to daphnia and other aquatic invertebrates: LC50; Species: Daphnia magna (Water flea); Conditions: freshwater; static; Concentration: 900 mg/L for 4.2 days /total
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
12.2
Persistence and degradability
no data available
12.3
Bioaccumulative potential
no data available
12.4
Mobility in soil
no data available
12.5
Other adverse effects
no data available
SECTION 13: Disposal considerations
13.1
Disposal methods
Product
The material can be disposed of by removal to
a licensed chemical destruction plant or by controlled incineration
with flue gas scrubbing. Do not contaminate water, foodstuffs,
feed or seed by storage or disposal. Do not discharge to sewer systems.
Contaminated packaging
Containers can be triply rinsed (or equivalent) and
offered for recycling or reconditioning.
Alternatively, the packaging can be punctured to
make it unusable for other purposes and then be disposed of
in a sanitary landfill. Controlled incineration
with flue gas scrubbing is possible for combustible packaging materials.
SECTION 14: Transport information
14.1
UN Number
| ADR/RID: UN1486 (For reference only, please check.) | IMDG: UN1486 (For reference only, please check.) | IATA: UN1486 (For reference only, please check.) |
14.2
UN Proper Shipping Name
| ADR/RID: POTASSIUM NITRATE (For reference only, please check.) | IMDG: POTASSIUM NITRATE (For reference only, please check.) | IATA: POTASSIUM NITRATE (For reference only, please check.) |
14.3
Transport hazard class(es)
| ADR/RID: 5.1 (For reference only, please check.) | IMDG: 5.1 (For reference only, please check.) | IATA: 5.1 (For reference only, please check.) |
14.4
Packing group, if applicable
| ADR/RID: III (For reference only, please check.) | IMDG: III (For reference only, please check.) | IATA: III (For reference only, please check.) |
14.5
Environmental hazards
| ADR/RID: No | IMDG: No | IATA: No |
14.6
Special precautions for user
no data available
14.7
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
15.1
Safety, health and environmental regulations specific for the product in question
| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| Potassium Nitrate | Potassium nitrate | 7757-79-1 | 231-818-8 |
| European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
| EC Inventory | Listed. | ||
| United States Toxic Substances Control Act (TSCA) Inventory | Listed. | ||
| China Catalog of Hazardous chemicals 2015 | Listed. | ||
| New Zealand Inventory of Chemicals (NZIoC) | Listed. | ||
| Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Listed. | ||
| Vietnam National Chemical Inventory | Listed. | ||
| Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Listed. | ||
| Korea Existing Chemicals List (KECL) | Listed. | ||
SECTION 16: Other information
Information on revision
| Creation Date | Sep 14, 2020 |
|---|---|
| Revision Date | Sep 14, 2020 |
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS – The International Chemical Safety Cards (ICSC), website:
http://www.ilo.org/dyn/icsc/showcard.home - HSDB – Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC – International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal – The Global Portal to Information on Chemical Substances by OECD, website:
http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en - CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG – Emergency Response Guidebook by U.S. Department of Transportation, website:
http://www.phmsa.dot.gov/hazmat/library/erg - Germany GESTIS-database on hazard substance, website:
http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp - ECHA – European Chemicals Agency, website: https://echa.europa.eu/
Other Information
Rinse contaminated clothing with plenty of water because of fire hazard.Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Any questions regarding this SDS, Please send your inquiry to [email protected]
Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and
shall be used only as a guide. The information in this document is based on the present state of our
knowledge and is applicable to the product with regard to appropriate safety precautions. It does not
represent any guarantee of the properties of the product. We as supplier shall not be held liable for any
damage resulting from handling or from contact with the above product.
| Chemical Formular: | KNO3 |
| PubChem CID: | 24434 |
| IUPAC Name: | potassium;nitrate |
| Inchl: | InChI=1S/K.NO3/c;2-1(3)4/q+1;-1 |
| InChI Key: | FGIUAXJPYTZDNR-UHFFFAOYSA-N |
| Canonical SMILES: | [N+](=O)([O-])[O-].[K+] |
| Pictogram(s): |  |
| Signal: | Warning |
| GHS Hazard Statements: | H272 |
| Hazard Codes: | O:Oxidizingagent; |
| Risk Codes: | 8 |
| Precautionary Statement Codes: | P210-P220-P221-P370 + P378 |
| Flash Point: | n/a |
Saltpeter
n/a
An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells.
Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
Potassium is the major cation (positive ion) inside animal cells, while sodium is the major cation outside animal cells. The concentration differences of these charged particles causes a difference in electric potential between the inside and outside of cells, known as the membrane potential.
The balance between potassium and sodium is maintained by ion pumps in the cell membrane. The cell membrane potential created by potassium and sodium ions allows the cell generate an action potential—a “spike” of electrical discharge.
The ability of cells to produce electrical discharge is critical for body functions such as neurotransmission, muscle contraction, and heart function.
Potassium is also an essential mineral needed to regulate water balance, blood pressure and levels of acidity.
Nitrogen is the chemical element with the symbol N and atomic number 7.
It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772.
Although Carl Wilhelm Scheele and Henry Cavendish had independently done so at about the same time, Rutherford is generally accorded the credit because his work was published first.
The name nitrogène was suggested by French chemist Jean-Antoine-Claude Chaptal in 1790, when it was found that nitrogen was present in nitric acid and nitrates.
Antoine Lavoisier suggested instead the name azote, from the Greek ἀζωτικός “no life”, as it is an asphyxiant gas; this name is instead used in many languages, such as French, Russian, Romanian and Turkish, and appears in the English names of some nitrogen compounds such as hydrazine, azides and azo compounds.
Oxygen is the chemical element with the symbol O and atomic number 8, meaning its nucleus has 8 protons.
Oxygen is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.
Dioxygen is used in cellular respiration and many major classes of organic molecules in living organisms contain oxygen, such as proteins, nucleic acids, carbohydrates, and fats, as do the major constituent inorganic compounds of animal shells, teeth, and bone.
Oxygen was isolated by Michael Sendivogius before 1604, but it is commonly believed that the element was discovered independently by Carl Wilhelm Scheele, in Uppsala, in 1773 or earlier, and Joseph Priestley in Wiltshire, in 1774.
Fiber drums, steel drums, and bulk bags
