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87-90-1

Name Trichloroisocyanuric acid
CAS 87-90-1
EINECS(EC#) 201-782-8
Molecular Formula C3Cl3N3O3
MDL Number MFCD00006553
Molecular Weight 232.41
MOL File 87-90-1.mol

Chemical Properties

Appearance white to light yellow crystal powde
Melting point  249-251 °C (lit.)
Boiling point  272.3±23.0 °C(Predicted)
density  2.07
vapor pressure  0.001-0.002Pa at 20-25℃
Fp  121°C
storage temp.  Store below +30°C.
solubility  Chloroform (Sparingly, Heated), DMSO (Sparingly)
form  Powder or Granules
pka -4.49±0.20(Predicted)
color  White to almost white
Odor chlorine odor
PH 2.0-2.7 (10g/l, H2O, 20℃)
Stability: Stable. Hygroscopic, and may decompose in contact with moisture. Contact with combustible material may lead to fire. Incompatible with acids, reducing agents, water, strong oxidizing agents.
Water Solubility  1.2 g/100mL (25 ºC)
Sensitive  Hygroscopic
Merck  14,9641
BRN  202022
InChIKey YRIZYWQGELRKNT-UHFFFAOYSA-N
LogP -1.31-0.94 at 25℃
CAS DataBase Reference 87-90-1(CAS DataBase Reference)
NIST Chemistry Reference Trichlorocyanuric acid(87-90-1)
EPA Substance Registry System 87-90-1(EPA Substance)

Safety Data

Hazard Codes  O,Xn,N
Risk Statements 
R8:Contact with combustible material may cause fire.
R22:Harmful if swallowed.
R31:Contact with acids liberates toxic gas.
R36/37:Irritating to eyes and respiratory system .
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
Safety Statements 
S8:Keep container dry .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S41:In case of fire and/or explosion do not breathe fumes .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
RIDADR  UN 2468 5.1/PG 2
WGK Germany  2
RTECS  XZ1925000
TSCA  Yes
HazardClass  5.1
PackingGroup  II
HS Code  29336980
Safety Profile
Moderately toxic to humans and experimentally by ingestion. Mildly toxic experimentally by skin contact. Human systemic effects by ingestion: ulceration or bleeding from stomach. A severe skin and eye irritant. Toxicity symptoms include emaciation, lethargy, weakness, and delayed death. Autopsy shows inflammation of gastrointestinal tract, liver discoloration, and kidney hyperemia. A powerful oxidizer. Forms an explosive product with cyanuric acid + sodmm hydroxide. Potentially violent reaction with combustible materials. When heated to decomposition it emits very toxic fumes of Cland NOx. Used to chlorinate swimming pools.
Hazardous Substances Data 87-90-1(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: 406 mg/kg LD50 dermal Rabbit > 2000 mg/kg

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Material Safety Data Sheet(MSDS)

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