Chemical Safety Data Sheet MSDS / SDS
Potassium Phosphate Dibasic
Revision Date:2026-03-21Revision Number:1
Product identifier
- Product name: Potassium Phosphate Dibasic
- CBnumber: CB5668937
- CAS: 7758-11-4
- EINECS Number: 231-834-5
- Synonyms: K2HPO4;POTASSIUM PHOSPHATE, DIBASIC
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
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 010-86108875
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordWarning
P264 Wash skin thouroughly after handling.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P337+P313 IF eye irritation persists: Get medical advice/attention.
Hazard statements
H319 Causes serious eye irritation
Substance
- Product name: Potassium Phosphate Dibasic
- Synonyms: K2HPO4;POTASSIUM PHOSPHATE, DIBASIC
- CAS: 7758-11-4
- EC number: 231-834-5
- MF: K2HPO4
- MW: 174.18
4.1 Description of first-aid measures
If inhaledIf breathed in, move person into fresh air. If not breathing, give artificial respiration.
In case of skin contact
Wash off with soap and plenty of water.
In case of eye contact
Flush eyes with water as a precaution.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water.
4.2 Most important symptoms and effects, both acute and delayed
The most important known symptoms and effects are described in the labelling (see section 2) and/or in section 11
4.3 Indication of any immediate medical attention and special treatment needed
No data available
5.1 Extinguishing media
Suitable extinguishing mediaUse water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
5.2 Special hazards arising from the substance or mixture
Oxides of phosphorus
Potassium oxides
Potassium oxides
5.3 Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.
5.4 Further information
No data available
NFPA 704
1
0
1
| HEALTH | 1 | Exposure would cause irritation with only minor residual injury (e.g. acetone, sodium bromate, potassium chloride) | |
| FIRE | 0 | Materials that will not burn under typical fire conditions, including intrinsically noncombustible materials such as concrete, stone, and sand. Materials that will not burn in air when exposed to a temperature of 820 °C (1,500 °F) for a period of 5 minutes.(e.g. Carbon tetrachloride) | |
| REACT | 1 | Normally stable, but can become unstable at elevated temperatures and pressures (e.g. propene) | |
| SPEC. HAZ. |
6.1 Personal precautions, protective equipment and emergency procedures
Avoid dust formation. Avoid breathing vapors, mist or gas.
For personal protection see section 8.
For personal protection see section 8.
6.2 Environmental precautions
No special environmental precautions required.
6.3 Methods and materials for containment and cleaning up
Sweep up and shovel. Keep in suitable, closed containers for disposal.
6.4 Reference to other sections
For disposal see section 13.
7.1 Precautions for safe handling
Advice on protection against fire and explosionProvide appropriate exhaust ventilation at places where dust is formed.
Hygiene measures
General industrial hygiene practice.
For precautions see section 2.2.
For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditionsKeep container tightly closed in a dry and well-ventilated place. Store in cool place.
Storage class
Storage class (TRGS 510): 11: Combustible Solids
7.3 Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
8.1 Control parameters
Ingredients with workplace control parameters8.2 Exposure controls
Personal protective equipmentEye/face protection
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.
The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it.
The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it.
Body Protection
Choose body protection in relation to its type, to the concentration and amount of dangerous substances, and to the specific work-place., The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure
No special environmental precautions required.
Information on basic physicochemical properties
- a) Physical stategranules
- b) Colorwhite
- c) Odorodorless
- d) Melting point/freezing point340 °C
- e) Initial boiling point and boiling rangeNo data available
- f) Flammability (solid, gas)No data available
- g) Upper/lower flammability or explosive limitsNo data available
- h) Flash pointNo data available
- i) Autoignition temperatureNo data available
- j) Decomposition temperatureNo data available
- k) pH8,7 - 9,3 at 50 g/l at 25 °C
- l) ViscosityViscosity, kinematic: No data available
Viscosity, dynamic: No data available - m) Water solubilitysoluble
- n) Partition coefficient n-octanol/waterNo data available
- o) Vapor pressureNo data available
- p) Density2,300 g/cm3
- Relative density2,44 g/cm3
- q) Relative vapor densityNo data available
- r) Particle characteristicsNo data available
- s) Explosive propertiesNo data available
- t) Oxidizing propertiesNo data available
- SolubilityH2O: 1 M at 20 °C, clear, colorless
9.2 Other safety information
Bulk density1.300 kg/m3
10.1 Reactivity
No data available
10.2 Chemical stability
Stable under recommended storage conditions.
10.3 Possibility of hazardous reactions
No data available
10.4 Conditions to avoid
No data available
10.5 Incompatible materials
Strong oxidizing agents
10.6 Hazardous decomposition products
In the event of fire: see section 5
11.1 Information on toxicological effects
Acute toxicityLD50 Oral - Rat - female - > 2.000 mg/kg (OECD Test Guideline 420)
LC50 Inhalation - Rat - male and female - 4 h - > 0,83 mg/l - dust/mist (OECD Test Guideline 403)
Remarks: (highest concentration to be prepared) (in analogy to similar products)
The value is given in analogy to the following substances: sodium dihydrogen phosphate
LD50 Dermal - Rat - male and female - > 2.000 mg/kg (OECD Test Guideline 402)
Skin corrosion/irritation
LC50 Inhalation - Rat - male and female - 4 h - > 0,83 mg/l - dust/mist (OECD Test Guideline 403)
Remarks: (highest concentration to be prepared) (in analogy to similar products)
The value is given in analogy to the following substances: sodium dihydrogen phosphate
LD50 Dermal - Rat - male and female - > 2.000 mg/kg (OECD Test Guideline 402)
Skin - Rabbit
Result: No skin irritation - 24 h
Remarks: (ECHA)
Serious eye damage/eye irritation
Result: No skin irritation - 24 h
Remarks: (ECHA)
Eyes - Rabbit
Result: No eye irritation - 24 h (OECD Test Guideline 405)
Respiratory or skin sensitization
Result: No eye irritation - 24 h (OECD Test Guideline 405)
Local lymph node assay (LLNA) - Mouse
Result: negative (OECD Test Guideline 429)
Germ cell mutagenicity
Result: negative (OECD Test Guideline 429)
Test Type: Micronucleus test
Test system: Human lymphocytes
Metabolic activation: with and without metabolic activation
Method: OECD Test Guideline 487
Result: negative
Test Type: In vitro mammalian cell gene mutation test
Test system: mouse lymphoma cells
Metabolic activation: with and without metabolic activation
Method: OECD Test Guideline 490
Result: negative
Remarks: (ECHA)
Test Type: Ames test
Test system: Escherichia coli/Salmonella typhimurium
Metabolic activation: with and without metabolic activation
Method: OECD Test Guideline 471
Result: negative
Carcinogenicity
Test system: Human lymphocytes
Metabolic activation: with and without metabolic activation
Method: OECD Test Guideline 487
Result: negative
Test Type: In vitro mammalian cell gene mutation test
Test system: mouse lymphoma cells
Metabolic activation: with and without metabolic activation
Method: OECD Test Guideline 490
Result: negative
Remarks: (ECHA)
Test Type: Ames test
Test system: Escherichia coli/Salmonella typhimurium
Metabolic activation: with and without metabolic activation
Method: OECD Test Guideline 471
Result: negative
Classified based on available data. For more details, see section 2
Reproductive toxicity
Classified based on available data. For more details, see section 2
Specific target organ toxicity - single exposure
Classified based on available data. For more details, see section 2
Specific target organ toxicity - repeated exposure
Classified based on available data. For more details, see section 2
Aspiration hazard
Classified based on available data. For more details, see section 2
11.2 Additional Information
Lowered blood pressure, Abdominal pain, Nausea, Vomiting
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.
After uptake of large quantities:
Possible symptoms:
Nausea
Vomiting gastric pain
Diarrhea
Discomfort
However, when the product is handled appropriately, hazardous effects are unlikely to occur.
Handle in accordance with good industrial hygiene and safety practice.
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.
After uptake of large quantities:
Possible symptoms:
Nausea
Vomiting gastric pain
Diarrhea
Discomfort
However, when the product is handled appropriately, hazardous effects are unlikely to occur.
Handle in accordance with good industrial hygiene and safety practice.
12.1 Toxicity
Toxicity to fish semi-static test LC50 - Oncorhynchus mykiss (rainbow trout) - > 100 mg/l - 96 h (OECD Test Guideline 203)
Toxicity to daphnia static test EC50 - Daphnia magna (Water flea) - > 100 mg/l - 48 h and other aquatic (OECD Test Guideline 202) invertebrates
Toxicity to algae static test ErC50 - Desmodesmus subspicatus (green algae) - > 100 mg/l - 72 h (OECD Test Guideline 201)
Toxicity to bacteria static test EC50 - activated sludge - > 1.000 mg/l - 3 h (OECD Test Guideline 209) static test NOEC - activated sludge - 1.000 mg/l - 3 h (OECD Test Guideline 209)
Toxicity to daphnia static test EC50 - Daphnia magna (Water flea) - > 100 mg/l - 48 h and other aquatic (OECD Test Guideline 202) invertebrates
Toxicity to algae static test ErC50 - Desmodesmus subspicatus (green algae) - > 100 mg/l - 72 h (OECD Test Guideline 201)
Toxicity to bacteria static test EC50 - activated sludge - > 1.000 mg/l - 3 h (OECD Test Guideline 209) static test NOEC - activated sludge - 1.000 mg/l - 3 h (OECD Test Guideline 209)
12.2 Persistence and degradability
The methods for determining biodegradability are not applicable to inorganic substances.
12.3 Bioaccumulative potential
No data available
12.4 Mobility in soil
No data available
12.5 Results of PBT and vPvB assessment
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
12.6 Endocrine disrupting properties
No data available
12.7 Other adverse effects
Depending on the concentration, phosphorus compounds may contribute to the eutrophication of water supplies.
Discharge into the environment must be avoided.
Discharge into the environment must be avoided.
13.1 Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company.
Contaminated packaging
Offer surplus and non-recyclable solutions to a licensed disposal company.
Dispose of as unused product.
14.1 UN number
ADR/RID: -
IMDG: -
IATA: -
IMDG: -
IATA: -
14.2 UN proper shipping name
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
14.3 Transport hazard class(es)
ADR/RID: -
IMDG: -
IATA: -
IMDG: -
IATA: -
14.4 Packaging group
ADR/RID: -
IMDG: -
IATA: -
IMDG: -
IATA: -
14.5 Environmental hazards
ADR/RID: no
IMDG Marine pollutant: no
IATA: no
IMDG Marine pollutant: no
IATA: no
14.6 Special precautions for user
Further information: Not classified as dangerous in the meaning of transport regulations.
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
This material safety data sheet complies with the requirements of Regulation (EC) No.
1907/2006.
1907/2006.
15.2 Chemical Safety Assessment
For this product a chemical safety assessment was not carried out
Abbreviations and acronyms
CAS: Chemical Abstracts Service
TWA: Time-Weighted Average
STEL: Short-Term Exposure Limit
LD50: Lethal Dose 50%
LC50: Lethal Concentration 50%
EC50: Effective Concentration 50%
PEL: Permissible Exposure Limit
TLV: Threshold Limit Value
IMDG: International Maritime Dangerous Goods Code
IATA: International Air Transport Association
ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
DOT: US Department of Transportation
NFPA: National Fire Protection Association
NIOSH: National Institute for Occupational Safety and Health
OSHA: Occupational Safety and Health Administration
TWA: Time-Weighted Average
STEL: Short-Term Exposure Limit
LD50: Lethal Dose 50%
LC50: Lethal Concentration 50%
EC50: Effective Concentration 50%
PEL: Permissible Exposure Limit
TLV: Threshold Limit Value
IMDG: International Maritime Dangerous Goods Code
IATA: International Air Transport Association
ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
DOT: US Department of Transportation
NFPA: National Fire Protection Association
NIOSH: National Institute for Occupational Safety and Health
OSHA: Occupational Safety and Health Administration
Disclaimer:
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.
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