Material Safety Data Sheet: Tris(dipropylene glycol) Phosphonate

1. Identification

Product Name: Tris(dipropylene glycol) phosphonate
Chemical Formula: C18H39O9P
Synonyms: TDPP, Phosphonic acid, tris(2-(2-methoxyethoxy)ethyl) ester
CAS Number: 1160435-30-6
Product Use: Used as a flame retardant, plasticizer, and in industrial applications
Manufacturer: Contact chemical supplier for details
Emergency Contact: Refer to supplier's emergency number

2. Hazard Identification

GHS Classification: Eye Irritation Category 2A, Skin Irritation Category 2, Specific Target Organ Toxicity – Single Exposure Category 3
Signal Word: Warning
Hazard Statements: Causes serious eye irritation, causes skin irritation, may cause respiratory irritation
Pictograms: Exclamation mark symbol (for irritation)
Precautionary Statements: Wear protective gloves and eye protection, avoid breathing vapors, wash skin thoroughly after handling, use only outdoors or in a well-ventilated area
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Potential Health Effects: Redness, stinging, or burning of eyes and skin, mild upper respiratory discomfort

3. Composition / Information on Ingredients

Main Component: Tris(dipropylene glycol) phosphonate
Content: ≥ 98% by weight
Impurities: Minor levels of dipropylene glycol (≤0.5%), residue solvents (≤0.2%)
Other Names: Triphosphoric acid ester, Dipropylene glycol derivative, Organophosphorus compound
Molecular Weight: 462.48 g/mol

4. First Aid Measures

Inhalation: Move affected person outdoors into fresh air, loosen clothing, seek medical attention for persistent symptoms like coughing or shortness of breath
Skin Contact: Remove contaminated clothing, rinse skin immediately with copious amounts of running water, use mild soap to cleanse, seek attention if skin redness or irritation is significant
Eye Contact: Flush eyes gently for 15 minutes with lukewarm water, lift upper and lower eyelids occasionally, call a physician if irritation continues
Ingestion: Do not induce vomiting, rinse mouth thoroughly, do not give anything by mouth if unconscious, get medical advice without delay
Most Important Symptoms: Irritation of eyes, redness or rash on skin, mild cough, possible headache or dizziness

5. Fire-Fighting Measures

Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam, or water spray
Special Hazards: Product may release toxic phosphorus oxides and carbon monoxide upon decomposition in fire
Fire Fighting Instructions: Use self-contained breathing apparatus, wear protective gear, remove containers from fire zone if possible
Explosion Data: Vapors do not form highly flammable mixtures under normal use
Other Precautions: Contain runoff with diking to prevent environmental contamination

6. Accidental Release Measures

Personal Precautions: Put on gloves, goggles, and a chemical-resistant apron, avoid breathing vapors, evacuate unprotected personnel
Environmental Precautions: Prevent entry into drains, water systems, or soil, alert authorities if spill contaminates waterways
Methods for Clean-up: Absorb material with non-combustible absorbent like sand or earth, shovel into suitable containers for disposal, wash spill area with plenty of water
Decontamination: Use detergent, avoid solvent-based cleaning for scrubbing contaminated surfaces

7. Handling and Storage

Handling: Handle in areas with sufficient air-flow, avoid direct skin or eye contact, refrain from eating or drinking near product
Hygiene Measures: Wash hands after handling, keep protective clothing isolated until cleaned
Storage: Keep container well-sealed in a dry, cool, and well-ventilated spot, do not store near incompatible materials like strong acids, oxidizers, or alkalis, store away from food or feed stuffs
Storage Temperature: Stable between 5°C and 30°C, keep away from intense sunlight or heat sources

8. Exposure Controls and Personal Protection

Exposure Limits: No occupational exposure limits set by OSHA, ACGIH, or NIOSH for this compound
Engineering Controls: Use local exhaust, provide eyewash stations and emergency showers
Respiratory Protection: Wear a NIOSH-approved organic vapor respirator if ventilation is insufficient
Skin Protection: Chemical-resistant gloves (nitrile or PVC), long sleeves, safety boots
Eye Protection: Tight-fitting chemical splash goggles, optionally a face shield for large volumes
Other Protection: Protective apron, keep work clothes separate from household laundry

9. Physical and Chemical Properties

Appearance: Clear colorless to pale yellow liquid
Odor: Mild, slightly sweet odor
pH: Approximate neutral range
Melting Point: Not established; liquid at room temperature
Boiling Point: > 300°C (estimated, decomposes)
Flash Point: > 200°C (closed cup)
Evaporation Rate: Expected to be low
Vapor Pressure: Negligible at 20°C
Density: 1.18–1.22 g/cm³ at 20°C
Solubility: Slightly soluble in water, miscible with many organic solvents
Partition Coefficient (Log Pow): Estimated 1.5–2.5
Viscosity: 180–270 mPa·s at 25°C

10. Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions
Reactivity: Does not react readily with common substances
Hazardous Reactions: Reacts with strong oxidizing agents, acids or alkalis may trigger decomposition
Thermal Decomposition: Emits phosphorus oxides, carbon monoxide, and other toxic vapors when overheated
Incompatibles: Avoid storing with strong acids, strong bases, oxidizers, strong reducing agents

11. Toxicological Information

Acute Toxicity - Oral: LD50 (rat, oral): > 2000 mg/kg
Acute Toxicity - Dermal: LD50 (rabbit, dermal): > 2000 mg/kg
Skin Corrosion/Irritation: Causes moderate irritation based on animal studies
Eye Damage/Irritation: Induces significant eye irritation
Respiratory Effects: Exposure to high levels causes mild upper airway irritation
Chronic Effects: Prolonged or repeated exposure may lead to dermatitis
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Mutagenicity: No existing evidence indicating mutagenic risk in available studies

12. Ecological Information

Ecotoxicity: Based on available data, the product is not classified as highly toxic to aquatic life but large spills can have harmful effects
Persistence/Degradability: Incomplete information; expected to undergo slow biodegradation
Bioaccumulation: Not expected to significantly bioaccumulate (Log Pow below threshold of concern)
Mobility in Soil: Moderate – chemical is likely to adsorb lightly to soil particles
Other Adverse Effects: Discharge to environment is to be prevented

13. Disposal Considerations

Waste Treatment Methods: Consult a licensed professional waste disposal service, incineration is preferred in accordance with local or national regulations
Container Disposal: Rinse thoroughly before recycling, puncture or crush to prevent re-use
Additional Notes: Do not discharge into sewers, surface water, or soil

14. Transport Information

UN Number: Not classified as dangerous goods under UN transport regulations
Proper Shipping Name: Not regulated for transport
Hazard Class: Not assigned
Packing Group: Not applicable
Marine Pollutant: Not subject to IMDG code marine pollution rules
Special Precautions: Avoid transport with incompatible chemicals, keep containers upright and tightly sealed during movement

15. Regulatory Information

TSCA: Listed in the US EPA Toxic Substances Control Act inventory
EINECS/ELINCS: Subject to listing; check current European inventory
SARA Title III: Not designated as an extremely hazardous substance
REACH Status: Pre-registered or registered; compliance with EU requirements may apply
OSHA Hazard Category: Irritant
Label Elements: GHS-compliant labeling applies
Other Regulations: Subject to state, provincial, or municipal regulations depending on location