Product Identification

Product Name

2,4,6-TCP

Synonyms

Dowcide 2S
Phenachlor

CAS

88-06-2

Formula

C6H3Cl3O

Molecular Weight

197.45

EINECS

201-795-9

RTECS

SN1575000

RTECS Class

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

Merck

12,9773

Beilstein/Gmelin

776729

Beilstein Reference

4-06-00-01005

EC Index Number

604-018-00-5

EC Class

Carcinogenic Category 3; Harmful; Irritant; Dangerous for the Environment

Physical and Chemical Properties

Appearance

White to yellow needles or flakes, strong phenolic odor.

Solubility in water

Insoluble

Melting Point

66

Boiling Point

244.5

Vapor Pressure

0.024 (25 C)

Density

1.5233 g/cm3 (58 C)

pKa/pKb

6.59 (pKa)

Partition Coefficient

3.69

Heat Of Vaporization

60.3 kJ/mol

Usage

Herbicide, defoliant, fungicide former uses.

Vapor Density

6.8

Saturation Concentration

1316 ppm (0.1%) at 76.5 C (calculated)

Odor threshold

1,222 ug/L at 25 C

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin

Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed.

Handling and Storage

Storage

Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale. Use only in a chemical fume hood. Do not breathe dust.

Hazards Identification

Inhalation

Dust is irritating to the respiratory tract. Causes irritation of mucous membrane.

Skin

May be harmful if absorbed through the skin. Causes skin irritation and possible burns. Substance is readily absorbed through the skin. Contact with skin produces redness and edema.

Eyes

Causes severe eye irritation. May cause chemical conjunctivitis and corneal damage.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

EC Risk Phrase

R 22 36/38 40 50/53

EC Safety Phrase

S 36/37 60 61

UN (DOT)

2020

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Exposure Effects

Effects may be delayed. Workers exposed to chlorophenols showed persistent chloracne, liver dy sfunction, neuromuscular weakness, porphyria and psychological changes .

Poison Class

4

Fire Fighting Measures

Flash Point

96

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Runoff from fire control or dilution water may cause pollution. Extinguishing media: Do NOT get water inside containers. In case of fire, use carbon dioxide, dry chemical powder or water spray.

Fire Potential

This material is nonflammable

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Cover with an activated carbon adsorbent and place into a closed container for disposal. Provide ventilation.

Stability and Reactivity

Disposal Code

3

Incompatibilities

Oxidizing agents, acid chlorides, acid anhydrides.

Stability

Stable under normal temperatures and pressures.

Decomposition

Hydrogen chloride, carbon monoxide, carbon dioxide, chloride fumes.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2020

Hazard Class

6.1

Packing Group

III

HS Code

2908 10 00