Chemical Safety Data Sheet MSDS / SDS
DIATOMACEOUS EARTH
Revision Date:2026-03-21Revision Number:1
Product identifier
- Product name: DIATOMACEOUS EARTH
- CBnumber: CB8199393
- CAS: 91053-39-3
- EINECS Number: 293-303-4
- Synonyms: CELITE 535;HYFLO SUPER-CEL
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 wordDanger
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P314 Get medical advice/attention if you feel unwell.
P501 Dispose of contents/container to..…
Hazard statements
H372 Causes damage to organs through prolonged or repeated exposure
Substance
- Product name: DIATOMACEOUS EARTH
- Synonyms: CELITE 535;HYFLO SUPER-CEL
- CAS: 91053-39-3
- EC number: 293-303-4
- MF: O2Si
- MW: 60.084
4.1 Description of first-aid measures
General adviceShow this material safety data sheet to the doctor in attendance.
If inhaled
After inhalation: fresh air. Call in physician.
In case of skin contact
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower. Consult a physician.
In case of eye contact
After eye contact: rinse out with plenty of water. Call in ophthalmologist. Remove contact lenses.
If swallowed
After swallowing: immediately make victim drink water (two glasses at most). Consult a physician.
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
4.4 Notes to physician
No data available
5.1 Extinguishing media
Suitable extinguishing mediaUse extinguishing measures that are appropriate to local circumstances and the surrounding environment.
Unsuitable extinguishing media
For this substance/mixture no limitations of extinguishing agents are given.
5.2 Special hazards arising from the substance or mixture
Potassium oxides
Sodium oxides
Iron oxides
Aluminum oxide silicon oxides
Not combustible.
Ambient fire may liberate hazardous vapours.
Sodium oxides
Iron oxides
Aluminum oxide silicon oxides
Not combustible.
Ambient fire may liberate hazardous vapours.
5.3 Advice for firefighters
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.
Suppress (knock down) gases/vapors/mists with a water spray jet.
Suppress (knock down) gases/vapors/mists with a water spray jet.
6.1 Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Avoid generation and inhalation of dusts in all circumstances. Avoid substance contact. Ensure adequate ventilation. Evacuate the danger area, observe emergency procedures, consult an expert.
For personal protection see section 8.
For personal protection see section 8.
6.2 Environmental precautions
No special precautionary measures necessary.
6.3 Methods and materials for containment and cleaning up
Observe possible material restrictions (see sections 7 and 10). Take up dry. Dispose of properly. Clean up affected area. Avoid generation of dusts.
6.4 Reference to other sections
For disposal see section 13.
7.1 Precautions for safe handling
Advice on safe handlingWork under hood. Do not inhale substance/mixture.
Hygiene measures
Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.
For precautions see section 2.2.
For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditionsTightly closed. Dry. Keep in a well-ventilated place. Keep locked up or in an area accessible only to qualified or authorized persons.
Storage class
Storage class (TRGS 510): 6.1D: Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
8.1 Control parameters
Ingredients with workplace control parameters| ['Component', 'CAS-No.', 'Value', 'Control\nparameters', 'Basis'] | ['aluminum oxide', '1344-28-1', 'PC-TWA', '4 mg/m3', 'Occupational exposure limits for\nhazardous agents in the\nworkplace - Chemical\nhazardous agents.'] | ['Component', 'CAS-No.', 'Value', 'Control\nparameters', 'Basis'] | ['iron(III) oxide', '1309-37-1', 'TWA', '5 mg/m3', 'USA. ACGIH Threshold Limit\nValues (TLV)'] | ['', 'Remarks', 'Not classifiable as a human carcinogen', None, None] | ['', '', 'TWA', '5 mg/m3', 'USA. NIOSH Recommended\nExposure Limits'] | ['', '', 'TWA', '10 mg/m3', 'USA. Occupational Exposure\nLimits (OSHA) - Table Z-1\nLimits for Air Contaminants'] | ['', '', 'TWA', '15 mg/m3', 'USA. Occupational Exposure\nLimits (OSHA) - Table Z-1\nLimits for Air Contaminants'] | ['', '', 'TWA', '5 mg/m3', 'USA. Occupational Exposure\nLimits (OSHA) - Table Z-1\nLimits for Air Contaminants'] | ['', '', 'PEL', '10 mg/m3', 'California permissible exposure\nlimits for chemical\ncontaminants (Title 8, Article\n107)'] | ['', '', 'PEL', '5 mg/m3', 'California permissible exposure\nlimits for chemical\ncontaminants (Title 8, Article\n107)'] | ['', '', 'PEL', '5 mg/m3', 'California permissible exposure\nlimits for chemical\ncontaminants (Title 8, Article\n107)'] |
|---|
8.2 Exposure controls
Appropriate engineering controlsImmediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.
Personal protective equipment
Eye/face protection
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses
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.
Full contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: (KCL 740 / Aldrich Z677272, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the EC approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
Body Protection
The selected protective gloves have to satisfy the specifications of Regulation (EU) 2016/425 and the standard EN 374 derived from it.
Full contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested: (KCL 740 / Aldrich Z677272, Size M) data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail sales@kcl.de, test method: EN374
If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the EC approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.
protective clothing
Respiratory protection
required when dusts are generated.
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
Control of environmental exposure
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
No special precautionary measures necessary.
Information on basic physicochemical properties
- a) Physical statesolid
- b) Colorwhite, to, light brown
- c) OdorOdorless
- d) Melting point/freezing pointNo data available
- e) Initial boiling point and boiling rangeNo data available
- f) Flammability (solid, gas)The product is not flammable.
- g) Upper/lower flammability or explosive limitsNo data available
- h) Flash pointNot applicable
- i) Autoignition temperatureNot applicable
- j) Decomposition temperatureNo data available
- k) pH6 - 8 at 10% at 25 °C
- l) ViscosityViscosity, kinematic: No data available
Viscosity, dynamic: No data available - m) Water solubilityInsoluble in water.
- n) Partition coefficient n-octanol/waterNo data available
- o) Vapor pressureNo data available
- p) Density0.47 g/cm3 (loose weight)(lit.)
- Relative density0.47 g/cm3 (loose weight)(lit.)
- q) Relative vapor densityNo data available
- r) Particle characteristicsNo data available
- s) Explosive propertiesNot classified as explosive.
- t) Oxidizing propertiesnone
9.2 Other safety information
No data available
10.1 Chemical stability
The product is chemically stable under standard ambient conditions (room temperature) .
10.2 Possibility of hazardous reactions
No data available
10.3 Conditions to avoid
no information available
10.4 Incompatible materials
Strong acids, Hydrogen fluoride
10.5 Hazardous decomposition products
In the event of fire: see section 5
11.1 Information on toxicological effects
Mixture Acute toxicitySymptoms: Irritations of mucous membranes in the mouth, pharynx, oesophagus and gastrointestinal tract.
Symptoms: Possible symptoms:, mucosal irritations
Dermal: No data available
Skin corrosion/irritation
Symptoms: Possible symptoms:, mucosal irritations
Dermal: No data available
Remarks: Mixture causes skin irritation.
Serious eye damage/eye irritation
Remarks: Mixture causes serious eye irritation.
Respiratory or skin sensitization
Classified based on available data. For more details, see section 2
Germ cell mutagenicity
Classified based on available data. For more details, see section 2
Carcinogenicity
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
Mixture causes damage to organs through prolonged or repeated exposure.
- Lungs
Aspiration hazard
- Lungs
Classified based on available data. For more details, see section 2
11.2 Additional Information
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.
Other dangerous properties can not be excluded.
Handle in accordance with good industrial hygiene and safety practice.
Components Kieselguhr, calcined, respirable
Other dangerous properties can not be excluded.
Handle in accordance with good industrial hygiene and safety practice.
Acute toxicity
Oral: No data available
Inhalation: No data available
Dermal: No data available
Skin corrosion/irritation
Inhalation: No data available
Dermal: No data available
Classified based on available data. For more details, see section 2
Serious eye damage/eye irritation
Classified based on available data. For more details, see section 2
Respiratory or skin sensitization
Classified based on available data. For more details, see section 2
Germ cell mutagenicity
Classified based on available data. For more details, see section 2
Carcinogenicity
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
Inhalation - Causes damage to organs through prolonged or repeated exposure.
- Lungs
Aspiration hazard
- Lungs
Classified based on available data. For more details, see section 2
aluminum oxide Acute toxicity
LD50 Oral - Rat - male and female - > 10,000 mg/kg (OECD Test Guideline 401)
LC50 Inhalation - Rat - male and female - 4 h - > 2.3 mg/l - aerosol (OECD Test Guideline 403)
Dermal: No data available
Skin corrosion/irritation
LC50 Inhalation - Rat - male and female - 4 h - > 2.3 mg/l - aerosol (OECD Test Guideline 403)
Dermal: No data available
Skin - Rabbit
Result: No skin irritation - 24 h (OECD Test Guideline 404)
Serious eye damage/eye irritation
Result: No skin irritation - 24 h (OECD Test Guideline 404)
Eyes - Rabbit
Result: No eye irritation (OECD Test Guideline 405)
Respiratory or skin sensitization
Result: No eye irritation (OECD Test Guideline 405)
Draize Test - Guinea pig
Result: Does not cause skin sensitization.
- Mouse
Result: Does not cause respiratory sensitization.
Germ cell mutagenicity
Result: Does not cause skin sensitization.
- Mouse
Result: Does not cause respiratory sensitization.
Test Type: Ames test
Test system: Bacillus subtilis
Result: negative
Remarks: (IUCLID)
Carcinogenicity
Test system: Bacillus subtilis
Result: negative
Remarks: (IUCLID)
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
iron(III) oxide Acute toxicity
LD50 Oral - Rat - male and female - > 5,000 mg/kg (EC Directive 92/69/EEC B.1 Acute Toxicity (Oral))
Remarks: (ECHA)
LC50 Inhalation - Rat - male and female - 4 h - > 5.05 mg/l - dust/mist (OECD Test Guideline 403)
Dermal: No data available
Skin corrosion/irritation
Remarks: (ECHA)
LC50 Inhalation - Rat - male and female - 4 h - > 5.05 mg/l - dust/mist (OECD Test Guideline 403)
Dermal: No data available
Skin - Rabbit
Result: No skin irritation - 4 h (OECD Test Guideline 404)
Serious eye damage/eye irritation
Result: No skin irritation - 4 h (OECD Test Guideline 404)
Eyes - Rabbit
Result: No eye irritation (OECD Test Guideline 405)
Respiratory or skin sensitization
Result: No eye irritation (OECD Test Guideline 405)
Maurer optimisation test - Guinea pig
Result: negative
Remarks: (ECHA)
Germ cell mutagenicity
Result: negative
Remarks: (ECHA)
Classified based on available data. For more details, see section 2
Test Type: Ames test
Test system: S. typhimurium
Result: negative
Remarks: (ECHA)
Test Type: in vitro test
Test system: Chinese hamster fibroblasts
Result: negative
Species: Rat - female - Bone marrow
Result: negative
Remarks: (ECHA)
Carcinogenicity
Test Type: Ames test
Test system: S. typhimurium
Result: negative
Remarks: (ECHA)
Test Type: in vitro test
Test system: Chinese hamster fibroblasts
Result: negative
Species: Rat - female - Bone marrow
Result: negative
Remarks: (ECHA)
This product is or contains a component that is not classifiable as to its carcinogenicity based on its IARC, ACGIH, NTP, or EPA classification.
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
Disodium oxide Acute toxicity
Oral: No data available
Inhalation: No data available
Dermal: No data available
Skin corrosion/irritation
Inhalation: No data available
Dermal: No data available
Classified based on available data. For more details, see section 2
Serious eye damage/eye irritation
Remarks: No data available
Respiratory or skin sensitization
Classified based on available data. For more details, see section 2
Germ cell mutagenicity
Classified based on available data. For more details, see section 2
Carcinogenicity
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
Dipotassium oxide
Acute toxicity
Oral: No data available
Inhalation: No data available
Dermal: No data available
Inhalation: No data available
Dermal: No data available
Skin corrosion/irritation
Remarks: No data available
Serious eye damage/eye irritation
Remarks: No data available
Respiratory or skin sensitization
Classified based on available data. For more details, see section 2
Germ cell mutagenicity
Classified based on available data. For more details, see section 2
Carcinogenicity
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
12.1 Toxicity
MixtureNo 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 Results of PBT and vPvB assessment
PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
12.6 Endocrine disrupting properties
No data available
12.7 Other adverse effects
No data available
Components Kieselguhr, calcined, respirable
No data available
aluminum oxide
No data available
iron(III) oxide
No data available
Toxicity to daphnia static test EC50 - Daphnia magna (Water flea) - > 100 mg/l - and other aquatic 48 h invertebrates (OECD Test Guideline 202)
Remarks: (ECHA)
Toxicity to bacteria static test EC50 - activated sludge - > 10,000 mg/l - 3 h (ISO 8192)
Disodium oxide
Toxicity to daphnia static test EC50 - Daphnia magna (Water flea) - > 100 mg/l - and other aquatic 48 h invertebrates (OECD Test Guideline 202)
Remarks: (ECHA)
Toxicity to bacteria static test EC50 - activated sludge - > 10,000 mg/l - 3 h (ISO 8192)
No data available
Dipotassium oxide
Toxicity to fish semi-static test LC50 - Labeo rohita - 917.6 mg/l - 96 h (OECD Test Guideline 203)
Toxicity to flow-through test NOEC - Heteropneustes fossilis - 2,000 mg/l fish(Chronic toxicity) - 40 d (OECD Test Guideline 210)
Toxicity to flow-through test NOEC - Heteropneustes fossilis - 2,000 mg/l fish(Chronic toxicity) - 40 d (OECD Test Guideline 210)
13.1 Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company.
Offer surplus and non-recyclable solutions to a licensed disposal company.
14.1 UN number
ADR/RID: -
IMDG: -
IATA-DGR: -
IMDG: -
IATA-DGR: -
14.2 UN proper shipping name
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA-DGR: Not dangerous goods
IMDG: Not dangerous goods
IATA-DGR: Not dangerous goods
14.3 Transport hazard class(es)
ADR/RID: -
IMDG: -
IATA-DGR: -
IMDG: -
IATA-DGR: -
14.4 Packaging group
ADR/RID: -
IMDG: -
IATA-DGR: -
IMDG: -
IATA-DGR: -
14.5 Environmental hazards
ADR/RID: no
IMDG Marine pollutant: no
IATA-DGR: no
IMDG Marine pollutant: no
IATA-DGR: no
14.6 Special precautions for user
14.7 Incompatible materials
Strong acids, Hydrogen fluoride
Further information: Not classified as dangerous in the meaning of transport regulations.
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
National regulatory information
Law on the Prevention and Control of Occupational Diseases
Other regulations
Please pay attention on the waste treatment should also comply with local regulations requirement.
Law on the Prevention and Control of Occupational Diseases
Other regulations
Please pay attention on the waste treatment should also comply with local regulations requirement.
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.