Material Safety Data Sheet

Capstone® 4-I 

Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

1 / 10 

This SDS adheres to the standards and regulatory requirements of the United States and may not meet the regulatory 

requirements in other countries. 

 

SECTION 1. PRODUCT AND COMPANY IDENTIFICATION 

Product name : Capstone®

 4-I

Tradename/Synonym : Zonyl® PFBI 

MSDS Number : 130000042690 

Product Use : Chemical intermediate 

Manufacturer : DuPont 

1007 Market Street 

Wilmington, DE 19898 

Product Information : 1-800-441-7515 (outside the U.S. 1-302-774-1000) 

Medical Emergency : 1-800-441-3637 (outside the U.S. 1-302-774-1139) 

Transport Emergency : CHEMTREC: 1-800-424-9300 (outside the U.S. 1-703-527-3887) 

Other information : professional use

 

SECTION 2. HAZARDS IDENTIFICATION 

Emergency Overview 

The hazards of this product are associated mainly with its processing. Inhalation of decomposition products in 

high concentration may cause shortness of breath (lung oedema). Inhalation of aerosol or fine spray mist may 

cause serious respiratory problems. 

Warning symptoms:

Irregular cardiac activity Pain, Itching, Rash, Sensitisation, Irritation, Ulceration 

Potential Health Effects 

Skin : Causes skin irritation. May cause:, Pain, Burning sensation, Itching, 

Redness, Swelling, Rash. 

Eyes : Causes eye irritation. May cause:, Pain, tearing, Swelling, Redness, 

Temporary, visual impairment. 
Material Safety Data Sheet

Capstone® 4-I 

Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

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Inhalation : May cause irritation of respiratory tract. May cause:, Cough, Shortness of 

breath, Central nervous system depression, dizziness, confusion, 

incoordination, drowsiness, or unconsciousness, Prolonged contact may 

cause:, irregular heartbeat with a strange sensation in the chest, heart 

thumping, apprehension, feeling of fainting, dizziness or weakness, Fluid in 

the lungs (pulmonary oedema) with cough, wheezing, abnormal lung 

sounds, possibly progressing to severe shortness of breath and bluish 

discoloration of the skin (symptoms might be delayed). 

Ingestion : Gross overexposure may cause: Thyroid effects 

Repeated exposure : May cause harm to the unborn child. 

Target Organs 

Perfluorobutyl 

iodide 

: Respiratory Tract 

Iodine : Thyroid 

Carcinogenicity 

None of the components present in this material at concentrations equal to or greater than 0.1% are listed by 

IARC, NTP, or OSHA, as a carcinogen.

 

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS 

Component CAS-No. Concentration 

Perfluorobutyl iodide 423-39-2 >99% 

Perfluorohexyl Iodide 355-43-1 <0.4 % 

Perfluoroethyl iodide 354-64-3 <0.5 % 

Iodine 7553-56-2 <0.1 % 
Material Safety Data Sheet

Capstone® 4-I 

Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

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SECTION 4. FIRST AID MEASURES 

Skin contact : Wash off immediately with soap and plenty of water. Wash contaminated 

clothing before re-use. 

Eye contact : Rinse immediately with plenty of water for at least 15 minutes. Seek medical 

advice. 

Inhalation : Move to fresh air. Oxygen or artificial respiration if needed. Symptoms may be 

delayed. Call a physician immediately. 

Ingestion : Call a physician or poison control centre immediately. If swallowed, DO NOT 

induce vomiting unless directed to do so by medical personnel. Never give 

anything by mouth to an unconscious person. 

General advice : When symptoms persist or in all cases of doubt seek medical advice. 

 

SECTION 5. FIRE-FIGHTING MEASURES 

Flammable Properties

Flash point : closed cup 

does not flash 

Thermal decomposition : > 200 °C (> 392 °F) 

To avoid thermal decomposition, do not overheat. 

 Thermal decomposition can lead to release of irritating gases and vapours. 

Fire and Explosion Hazard : The product itself does not burn. Hazardous decomposition products formed 

under fire conditions. Hazardous combustion products Hydrogen fluoride 

Carbon dioxide (CO2) Carbon monoxide Other hazardous decomposition 

products may be formed. 

Suitable extinguishing media : Use extinguishing measures that are appropriate to local circumstances and 

the surrounding environment.

Firefighting Instructions : Wear self contained breathing apparatus for fire fighting if necessary. 

Evacuate personnel to safe areas. Do not allow run-off from fire fighting to 

enter drains or water courses.
Material Safety Data Sheet

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Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

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SECTION 6. ACCIDENTAL RELEASE MEASURES 

NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL) sections before proceeding with cleanup. Use appropriate PERSONAL PROTECTIVE EQUIPMENT during clean-up. 

Safeguards (Personnel) : Evacuate personnel to safe areas. Use personal protective equipment. 

Ventilate the area. 

Spill Cleanup 

 

: Dam up. Soak up with inert absorbent material (e.g. sand, silica gel, acid 

binder, universal binder, sawdust). Pick up and transfer to properly labelled 

containers. 

Accidental Release Measures : Do not discharge to streams, ponds, lakes or sewers. Avoid subsoil 

penetration. 

 

SECTION 7. HANDLING AND STORAGE 

Handling (Personnel) : Avoid formation of respirable particles. Do not breathe vapours or spray mist. 

Avoid contact with skin, eyes and clothing. 

Wash hands before breaks and immediately after handling the product. Wash 

contaminated clothing before re-use. 

Handling (Physical Aspects) : To avoid thermal decomposition, do not overheat. Thermal decomposition 

can lead to release of irritating gases and vapours. 

Do not spray near open flame or heated surface. 

Storage : Keep tightly closed in a dry, cool and well-ventilated place. 

 

SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION 

Personal protective equipment 

Respiratory protection : In case of mist, spray or aerosol exposure wear suitable personal respiratory 

protection and protective suit. 

Hand protection : Additional protection: Impervious gloves 
Material Safety Data Sheet

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Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

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Eye protection : Wear safety glasses or coverall chemical splash goggles. 

Skin and body protection : Lightweight protective clothing 

Exposure Guidelines 

Exposure Limit Values

Perfluorobutyl iodide

AEL * (DUPONT) 375 ppm 8 & 12 hr. TWA

Iodine

PEL: (OSHA) 0.1 ppm 1 mg/m3 TLV-C

TLV (ACGIH) 0.01 ppm TWA Inhalable fraction and vapor.

TLV (ACGIH) 0.1 ppm STEL Vapor and aerosol.

* AEL is DuPont's Acceptable Exposure Limit. Where governmentally imposed occupational exposure limits which 

are lower than the AEL are in effect, such limits shall take precedence.

 

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES 

Form : liquid 

Color : clear, colourless, to, violet 

Odor : slight, acidic 

Melting point : < -70 °C (< -94 °F) 

Boiling point : 69.1 °C (156.4 °F) 

% Volatile : > 98 % 

Vapour Pressure : 148 Torr at 25 °C (77 °F) 

Specific gravity : 2.00 at 25 °C (77 °F) 

Water solubility : negligible 

 

SECTION 10. STABILITY AND REACTIVITY 

Stability : Stable under normal conditions. 
Material Safety Data Sheet

Capstone® 4-I 

Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

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Conditions to avoid : To avoid thermal decomposition, do not overheat.

 

 

Hazardous decomposition 

products 

: Carbon dioxide , Carbon monoxide, Hydrogen fluoride

Incompletely burned carbon products 

Other hazardous decomposition products may be formed. 

 

SECTION 11. TOXICOLOGICAL INFORMATION 

Perfluorobutyl iodide 

Inhalation 4 h LC50 : 14000 ppm , rat

Target Organs: Respiratory Tract 

Respiratory tract irritation

Inhalation : 6000 ppm , dog 

Cardiac sensitization

Skin irritation : Skin irritation, guinea pig 

Eye irritation : Eye irritation, animals (unspecified species) 

Skin sensitization : Did not cause sensitization on laboratory animals., guinea pig 

Repeated dose toxicity : Inhalation

rat 

Respiratory tract irritation, Nasal irritation 

Mutagenicity : Evidence suggests this substance does not cause genetic damage in 

animals. 

Tests on bacterial or mammalian cell cultures did not show mutagenic 

effects. 

Further information : Cardiac sensitisation threshold limit : 84000 mg/m3

Perfluorohexyl Iodide 

Inhalation NOEC : 7500 ppm , dog 

Not a cardiac sensitizer.

Skin irritation : Non-corrosive 

Perfluoroethyl iodide 
Material Safety Data Sheet

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Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

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Inhalation 4 h LC50 : 40000 ppm , rat 

Central nervous system depression

Incoordination

Hypoactivity

Anaesthetic effects

Cardiac sensitization

Further information : Cardiac sensitisation threshold limit : 5030 mg/m3

Iodine 

Dermal Acute toxicity 

estimate 

: 1,100 mg/kg 

Oral LD50 : 14,000 mg/kg , rat 

Inhalation 4 h ALC : 0.2 mg/l , rat 

Skin irritation : Corrosive, animals (unspecified species) 

Eye irritation : Corrosive, animals (unspecified species) 

Skin sensitization : Causes sensitization., human 

Repeated dose toxicity : Oral

human 

Target Organs: Thyroid 

Thyroid effects 

Carcinogenicity : Overall weight of evidence indicates that the substance is not 

carcinogenic. 

Mutagenicity : Evidence suggests this substance does not cause genetic damage in 

animals. 

Reproductive toxicity : Effects on or via lactation 

Teratogenicity : Has been reported to cause: 

Reduced embryo-foetal viability 

Reduced growth 
Material Safety Data Sheet

Capstone® 4-I 

Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

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SECTION 12. ECOLOGICAL INFORMATION 

Aquatic Toxicity 

Perfluorobutyl iodide 

96 h LC50 : Pimephales promelas (fathead minnow) 2.3 mg/l 

48 h EC50 : Daphnia magna (Water flea) 1.7 mg/l 

Iodine 

96 h LC50 : Oncorhynchus mykiss (rainbow trout) 0.53 mg/l 

48 h LC50 : Daphnia magna (Water flea) 0.16 mg/l 

Environmental Fate 

Perfluorobutyl iodide 

Biodegradability : Not readily biodegradable. 

Additional ecological information : No data is available on the product itself. 

 

SECTION 13. DISPOSAL CONSIDERATIONS 

Waste Disposal : Collect spent solvent and either reclaim or incinerate. Collect materials 

containing or contaminated with solvent, including rags, disposable wipes, 

and gloves in a sealed container for incineration. Prevent wastewater, spent 

solvent, and materials containing or contaminated with solvent from entering 

waterways. Wastewater should be sent to a wastewater treatment facility. 

 

SECTION 14. TRANSPORT INFORMATION 

IATA_C UN number : 3082

Proper shipping name : Environmentally hazardous substance, liquid, n.o.s.

(Perfluorobutyl Iodide)

Class : 9

Packing group : III 

Labelling No. : 9MI 
Material Safety Data Sheet

Capstone® 4-I 

Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

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IMDG UN number : 3082

Proper shipping name : Environmentally hazardous substance, liquid, n.o.s.

(Perfluorobutyl Iodide) 

Class : 9

Packing group : III 

Labelling No. : 9 

Marine pollutant : yes (Perfluorobutyl Iodide)

 

SECTION 15. REGULATORY INFORMATION 

TSCA Status : On the inventory, or in compliance with the inventory 

SARA 313 Regulated 

Chemical(s) 

: SARA 313: This material does not contain any chemical components with 

known CAS numbers that exceed the threshold (De Minimis) reporting levels 

established by SARA Title III, Section 313. 

Title III hazard 

classification 

: Acute Health Hazard: Yes 

Chronic Health Hazard: No 

Fire: No 

Reactivity/Physical hazard: No 

Pressure: No 

California Prop. 65 : Chemicals known to the State of California to cause cancer, birth defects or 

any other harm: none known 

 

SECTION 16. OTHER INFORMATION 

 HMIS

Health : 2 

Flammability : 0 

Reactivity/Physical hazard : 0 

PPE : Personal Protection rating to be 

supplied by user depending on use 

conditions. 

The DuPont Oval Logo® and Capstone®
Material Safety Data Sheet

Capstone® 4-I 

Version 2.1 

Revision Date 06/03/2011 Ref. 130000042690

10 / 10 

are registered trademarks or trademarks of E. I. du Pont de Nemours and Company or its affiliates. 

 

Contact person : MSDS Coordinator, DuPont Chemicals and Fluoroproducts, Wilmington, DE 

19898, (800) 441-7515 

The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at 

the date of its publication. The information given is designed only as a guidance for safe handling, use, processing, 

storage, transportation, disposal and release and is not to be considered a warranty or quality specification. The 

information relates only to the specific material designated and may not be valid for such material used in combination 

with any other materials or in any process, unless specified in the text. 

Significant change from previous version is denoted with a double bar.