TRICHLORO-S-TRIAZINETRIONE, DRY

Diamond	Hazard	Value	Description
0 2 2 ox	Health	2	Can cause temporary incapacitation or residual injury.
	Flammability	0	Will not burn under typical fire conditions.
	Instability	2	Readily undergoes violent chemical changes at elevated temperatures and pressures.
	Special	OX	Possesses oxidizing properties.

A white slightly hygroscopic crystalline powder or lump solid with a mild chlorine-like odor. Said to have 85 percent available chlorine. Decomposes at 225°C. Moderately toxic by ingestion. May irritate skin and eyes. Active ingredient in household dry bleaches. Used in swimming pools as a disinfectant.

• Strong Oxidizing Agent
• Water-Reactive

Slightly hygroscopic [Hawley]. Slightly soluble in water. May react with water releasing gaseous chlorine. If mixed with a small amount of water, the concentrated solution (with pH at about 2.0) may explode due to the evolution of unstable nitrogen trichloride. (explanation in Bretherick 5th ed.)

Special Hazards of Combustion Products: Toxic chlorine or nitrogen trichloride may be formed in fires.

Behavior in Fire: Containers may explode when heated. (USCG, 1999)

Inhalation causes sneezing and coughing. Contact with dust causes moderate irritation of eyes and itching and redness of skin. Ingestion causes burns of mouth and stomach. (USCG, 1999)

TRICHLORO-S-TRIAZINETRIONE, DRY is an oxidizer. It reacts with combustible materials or ammonium salts, resulting in fire. It is thermally unstable, and reacts with small amounts of water to release toxic chlorine gas and explosive nitrogen trichloride. Reaction of this compound with ammonia or amines also produces nitrogen trichloride. This compound reacts explosively with calcium hypochlorite and water. [NFPA 49, 14th ed. 2010]

• Salts, Acidic
• Acyl Halides, Sulfonyl Halides, and Chloroformates
• Oxidizing Agents, Strong
• Halogenating Agents

Use caution: Liquids with this reactive group classification have been known to react with the absorbents listed below.

• Cellulose-Based Absorbents
• Mineral-Based & Clay-Based Absorbents
• Expanded Polymeric Absorbents
• Dirt/Earth

Excerpt from ERG Guide 140 [Oxidizers]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

LARGE SPILL: Consider initial downwind evacuation for at least 100 meters (330 feet).

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. If ammonium nitrate products are in a tank, rail car or truck and involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, initiate evacuation including emergency responders for 1600 meters (1 mile) in all directions. (ERG, 2024)

Fire Extinguishing Agents: Water in large amounts (USCG, 1999)

Excerpt from ERG Guide 140 [Oxidizers]:

Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Do not get water inside containers.

SMALL DRY SPILL: With clean shovel, place material into clean, dry container and cover loosely; move containers from spill area.

SMALL LIQUID SPILL: Use a non-combustible material like vermiculite or sand to soak up the product and place into a container for later disposal.

LARGE SPILL: Dike far ahead of liquid spill for later disposal. (ERG, 2024)

Dust mask or chlorine canister mask; goggles; rubber gloves (USCG, 1999)

No information available.

INHALATION: remove victim to fresh air.

EYES: irrigate with running water for 15 min.; call physician.

SKIN: flush with water.

INGESTION: induce vomiting and call physician. (USCG, 1999)

• ACL 85
• ACL 90
• ACL 90 PLUS
• CDB 90
• CHLOREAL
• FI CLOR 91
• HI-LITE 90
• HI-LITE 90G
• ISOCYANURIC CHLORIDE
• N,N',N''-TRICHLOROISOCYANURIC ACID
• NEOCHLOR 90
• S-TRIAZINE-2,4,6(1H,3H,5H)-TRIONE, 1,3,5-TRICHLORO-
• S-TRIAZINE-2,4,6(1H,3H,5H)-TRIONE, TRICHLORO-
• SYMCLOSEN
• SYMCLOSENE
• TRICHLORO-S-TRIAZINE-2,4,6(1H,3H,5H)-TRIONE
• TRICHLORO-S-TRIAZINE-2,4,6-(1H, 3H, 5H)-TRIONE
• TRICHLORO-S-TRIAZINETRIONE
• TRICHLORO-S-TRIAZINETRIONE, DRY
• TRICHLORO-S-TRIAZINETRIONE, [DRY, CONTAINING > 39% AVAILABLE CHLORINE]
• TRICHLOROCYANURIC ACID
• TRICHLOROIMINOISOCYANURIC ACID
• TRICHLOROISOCYANURIC ACID
• TRICHLOROISOCYANURIC ACID, DRY
• TRICHLOROISOCYANURIC ACID, [DRY]
• 1,3,5-TRICHLOROISOCYANURIC ACID
• TRICHLOROTRIAZINETRIONE