Phthalic anhydride

CAS 85-44-9 C₈H₄O₃ MW 148.1000 Danger
Corrosion Corrosion
Exclamation Mark Exclamation Mark
Health Hazard Health Hazard
Emergency: 911 | Poison Control: 1-800-222-1222

Safety Data Sheets

ManufacturerDownload
Alfa Aesar Download PDF
Sigma Aldrich Download PDF
TCI Download PDF

Hazard Statements

CodeStatementHazard Class
H302 Harmful if swallowed Acute toxicity, oral
H315 Causes skin irritation Skin corrosion/irritation
H317 May cause an allergic skin reaction Sensitization, Skin
H318 Causes serious eye damage Serious eye damage/eye irritation
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitization, respiratory
H335 May cause respiratory irritation Specific target organ toxicity, single exposure; Respiratory tract irritation
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity
H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure

Precautionary Statements

CodeStatement
P203 Obtain, read and follow all safety instructions before use.
P233 Keep container tightly closed.
P260 Do not breathe dust/fume/gas/mist/vapors/spray.
P261 Avoid breathing dust/fume/gas/mist/vapors/spray.
P264 Wash hands [and ...] thoroughly after handling.
P264+P265 Wash hands [and ...] thoroughly after handling. Do not touch eyes.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing should not be allowed out of the workplace.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P284 [In case of inadequate ventilation] Wear respiratory protection.
P301+P317 IF SWALLOWED: Get medical help.
P302+P352 IF ON SKIN: wash with plenty of water/...
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
P317 Get emergency medical help.
P318 if exposed or concerned, get medical advice.
P319 Get medical help if you feel unwell.
P321 Specific treatment (see information on this label and safety datasheet)).
P330 Rinse mouth.
P332+P317 If skin irritation occurs: Get medical help.
P333+P317 If skin irritation or rash occurs: Get medical help.
P342+P316 If experiencing respiratory symptoms: Get emergence medical help immediately.
P362+P364 Take off contaminated clothing and wash it before reuse.
P403 Store in a well-ventilated place.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P501 Dispose of contents/container to ...

Exposure Limits

OSHA PEL12 mg-m3
NIOSH REL6 mg-m3
NIOSH IDLH60 mg-m3
Skin NotationYes — can be absorbed through skin

Physical Properties

A colorless to white lustrous solid in the form of needles with a mild distinctive odor.

Boiling Point563°F
Flash Point305°F
Vapor Pressure0.0015 mmHg
Specific Gravity1.53 at 68°F

NFPA 704 Diamond

1
2
0
Health Fire Reactivity

Target Organs

Lungs Skin Eyes

skin and respiratory irritation and sensitization, eye irritation causing conjunctivitis

Synonyms

1,2-benzenedicarboxylic anhydride; 1,3, dioxophthalan; 1,3 isobenzoflurandione; PAN; phthalic acid anhydride

Data Sources

Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.

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