Potassium nitrate SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： Potassium nitrate
- CAS： 7757-79-1
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses： For R&D use only. Not for medicinal, household or other use.
- Uses advised against： none
Company Identification
- Company：Chemicalbook.in
- Address：5 vasavi Layout Basaveswara Nilayam Pragathi Nagar Hyderabad, India -500090
- Telephone：+91 9550333722
SECTION 2: Hazards identification
Classification of the substance or mixture
Oxidizing solids, Category 3
GHS label elements, including precautionary statements
-
Pictogram(s)
- Signal word Warning
H272 May intensify fire; oxidizer
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/...
P370+P378 In case of fire: Use ... to extinguish.
none
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.
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: Potassium nitrate
- Common names and synonyms: Potassium nitrate
- CAS number: 7757-79-1
- EC number: 231-818-8
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh air, rest. Refer for medical attention.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Refer for medical attention .
Most important symptoms/effects, acute and delayed
Exposure can cause mild irritation of eyes, nose and throat. (USCG, 1999)
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: Firefighting measures
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.
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)
Special protective actions for fire-fighters
In case of fire in the surroundings, use appropriate extinguishing media.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Sweep spilled substance into plastic or glass containers. Wash away remainder with plenty of water.
Environmental precautions
Sweep spilled substance into plastic or glass containers. Wash away remainder with plenty of water.
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
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.
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
Control parameters
| 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 | ||||
no data available
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.
Individual protection measures, such as personal protective equipment (PPE)
Wear safety goggles.
Protective gloves.
Use local exhaust or breathing protection.
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
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Odour：
Odorless
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Melting point/freezing point：
334°C
-
Boiling point or initial boiling point and boiling range：
400°C
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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：
400°C
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Auto-ignition temperature：
no data available
-
Decomposition temperature：
400°C
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pH：
4,5-8,5 (5?% solution)
-
Kinematic viscosity：
no data available
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Solubility：
Sol in water, glycerol; slightly sol in alcohol
-
Partition coefficient n-octanol/water：
no data available
-
Vapour pressure：
no data available
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Density and/or relative density：
2.109
-
Relative vapour density：
no data available
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
Decomposes on heating. This increases fire hazard. The substance is a strong oxidant. It reacts with combustible and reducing materials.
Chemical stability
no data available
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].
Conditions to avoid
no data available
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.
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
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
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Other adverse effects
no data available
SECTION 13: Disposal considerations
Disposal methods
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.
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
UN Number
ADR/RID: UN1486 (For reference only, please check.)
IMDG: UN1486 (For reference only, please check.)
IATA: UN1486 (For reference only, please check.)
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.)
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.)
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.)
Environmental hazards
ADR/RID: No
IMDG: No
IATA: No
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
Safety, health and environmental regulations specific for the product in question
SECTION 16: Other information
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.