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MATERIAL SAFETY DATA SHEET
Microphor Chlorinating Slugs
I - PRODUCT IDENTIFICATION
Product: Trichloroisocyanuric Acid
Chemical Family: Chloroisocyanurate
Synonym: Microphor Chlorinating Slugs
Formula: C3Cl3N3O3
CAS Number: 87-90-1
EPA Registration Number: 69681-5-50754
California EPA Registration Number: 69681-5-AA-50754
II - TRANSPORTATION DATA
U.S. DEPARTMENT OF TRANSPORTATION - 49 CFR
Proper Shipping Name: Trichloroisocyanuric Acid Dry
Hazard Class/Division Number: 5.1 – Oxidizing substances
ID Number: UN2468
Packing Group: II
Label Required: OXIDIZER (5.1)
Emergency Guide No.141
Emergency Telephone Number: Chemtrec 800-424-9300
INTERNATIONAL MARITIME ORGANIZATION - IMDG
Proper Shipping Name: Trichloroisocyanuric Acid Dry
Hazard Class/Division Number: 5.1 – Oxidizing substances
Packing Group: II
Label Required: OIXIDIZING AGENT (5.1)
(IMDG CODE – page 5190, amdt. 29-98)
Emergency Telephone Number: Chemtrec 202-483-7616 [call collect]
ICAO/IATA
Label: OXIDIZER (5.1)
Class: 5.1
Packing group: II
III - HAZARDOUS INGREDIENTS/IDENTITY INFORMATION
Exposure Limits
CHEMICAL OR COMMON NAME: OSHA PEL: ACGIH TLV:
Trichloro-s-triazinetrione: 96-100% Not established Not established
Dichloroisocyanuric Acid: 0-4%
IV - PHYSICAL/CHEMICAL CHARACTERISTICS
Boiling Point: Not applicable
Vapor Pressure (mm Hg): Not applicable under standard conditions.
Vapor Density (Air=1): Not applicable under standard conditions.
Solubility in Water: 1.2g/100ml at 25°C
Appearance and odor: White granular solid or tablet form, sharp, chlorine-like, bleach odor.
Specific Gravity (H
O=1): >1
2
Melting Point: Not applicable
Evaporation Rate: Not applicable under standard conditions.
Molecular Weight: 232.5
Bulk Density: Tablets – 1.16-1.9 g/cc, Granular – 0.89-1.1 g/cc.
pH: 2.7-2.9 (1% solution)
Thermal decomposition: 225°C (437°F)
V - FIRE AND EXPLOSION HAZARD DATA
Flash Point: Not applicable
Auto-Ignition Temperature: Not applicable
Extinguishing Media: Water. Do not use dry chemical extinguisher containing ammonia compounds.
Special Fire-fighting Procedures: Fire fighters should wear full protective clothing and self-contained breathing apparatus
(SCBA) in positive pressure mode. Cool containers with water spray. On small fires, use water spray or fog. On
large fires, use heavy deluge or fog streams. Flooding amounts of water may be required before extinguishment
can be accomplished.
Unusual Fire and Explosion Hazards: When heated to decomposition, may release poisonous and corrosive fumes of
nitrogen trichloride, chlorine, nitrous oxides, cyanates, carbon monoxide and carbon dioxide.
VI - REACTIVITY DATA
Stability: () Unstable (X) Stable under normal conditions
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