Product Identification

Product Name

p-Dichlorobenzene

Synonyms

IMO Pollution Category
1,4-Dichlorobenzene
Dichloricide
Paracide
para-Dichlorobenzene
PDCB

CAS

106-46-7

Formula

C6H4Cl2

Molecular Weight

147

EINECS

203-400-5

RTECS

CZ4550000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant

Merck

13,3082

Beilstein/Gmelin

1680023

Beilstein Reference

4-05-00-00658

EC Index Number

602-035-00-2

EC Class

Irritant; Dangerous for the Environment

Physical and Chemical Properties

Appearance

White or colorless crystals with a penetrating, distinctive, camphor odor.

Solubility in water

80 mg/L

Melting Point

48 - 50

Boiling Point

173.4

Vapor Pressure

0.65 (20 C)

Density

1.458 g/cm3 (20 C)

Partition Coefficient

3.44

Heat Of Vaporization

49.92 kJ/mol

Heat Of Combustion

-2936 kJ/mol

Usage

Insecticidal fumigant, popular for domestic use against clothes moths.

Vapor Density

5.07

Saturation Concentration

1267-1681 ppm (0.13-0.17%)

Odor threshold

15-30 ppm

Refractive Index

1.5285 (20 C)

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage

Keep away from sources of ignition. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Do not get on skin or in eyes. Do not ingest or inhale. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Inhalation

May cause respiratory tract irritation. May cause liver and kidney damage.

Skin

May cause skin irritation.

Eyes

Exposure to solid may cause pain and redness. Exposure to high vapor concentrations may cause irritation.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver and kidney damage.

Hazards

Containers may explode when heated.

EC Risk Phrase

R 36 50/53

EC Safety Phrase

S 24/25 46 60 61

UN (DOT)

1592

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear impervious gloves. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects

Overexposure may cause delayed kidney injury. Possible cancer hazard based on tests with laboratory animals. Chronic ingestion may cause liver damage. May cause anemia and other blood cell abnormalities.

Exposure limit(s)

OSHA PEL: TWA 75 ppm (450 mg/m3) NIOSH REL: Ca See Appendix A NIOSH IDLH: Potential occupational carcinogen 150 ppm

Poison Class

4

Fire Fighting Measures

Flash Point

66

Autoignition

> 500

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. Use water spray to keep fire-exposed containers cool. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Upper exp. limit

7.8

Lower exp. limit

1.8

Fire Potential

Moderate; flammable hazard when exposed to heat, flame or oxidizers.

Accidental Release Measures

Small spills/leaks

Wear a self contained breathing apparatus and appropriate Personal protection. (See Exposure Controls, Personal Protection section). Remove all sources of ignition. Carefully scoop up and place into appropriate disposal container.

Stability and Reactivity

Disposal Code

3

Incompatibilities

Aluminum, oxidizing agents.

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Decomposition

Hydrogen chloride, chlorine, carbon monoxide, carbon dioxide.

Combustion Products

Vapors are irritating. chlorine, hydrogen chloride, and phosgene gases may be generated in fires.

Transport Information

UN Number

1592

Hazard Class

6.1

Packing Group

I

HS Code

2903 61 00