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Name	Cyanuric acid	EINECS	203-618-0
CAS No.	108-80-5	Density	2.500 g/cm³
PSA	98.58000	LogP	-2.24850
Solubility	0.3 g/100mL (25 °C) in water	Melting Point	360 °C
Formula	C₃H₃N₃O₃	Boiling Point	793.4 °C at 760 mmHg
Molecular Weight	129.075	Flash Point	433.6 °C
Transport Information	UN 3389 6.1/PG 1	Appearance	white powder
Safety	26-37/39	Risk Codes	36-36/37/38
Molecular Structure		Hazard Symbols	Xi
Synonyms	NSC 6284;Pseudocyanuric acid;Tricyanic acid;Trihydroxycyanidine;s-Triazine-2,4,6-triol;Isocyanuricacid (6CI);s-Triazine-2,4,6(1H,3H,5H)-trione (8CI);1,3,5-Triazine-2,4,6-trione;2,4,6-Trihydroxy-1,3,5-triazine;2,4,6-Trihydroxy-s-triazine;2,4,6-Trioxohexahydro-1,3,5-triazine;5-Azabarbituric acid;ICA-P;	Article Data	439

Cyanuric acid Synthetic route

: 108-77-0
1,3,5-trichloro-2,4,6-triazine

: 108-80-5
isocyanuric acid

Conditions

Conditions	Yield
In 1,4-dioxane; water at 19 - 44℃; Thermodynamic data; Kinetics; Rate constant; conductometrical measurements, different ratios dioxane/water, other temperatures, hydrolysis constants, ΔS(excit.), ΔH(excit.), isotopical kinetic effects;	98.6%
With amide; HY zeolite In water at 180℃; for 0.0666667h; microwave irradiation;	97%
With water at 20℃;

: 132660-02-7
2-<5'-(Dimethylamino)-4',4'-dimethyl-4'H-imidazol-2'-yl>-2-ethylbutanamid

A: 132660-07-2
5-(Dimethylamino)-2-(1-ethylpropyl)-4,4-dimethyl-4H-imidazol

B: 108-80-5
isocyanuric acid

Conditions

Conditions	Yield
at 120℃;	A 95% B n/a
at 120℃; Yields of byproduct given;

: 132660-04-9
2-<5'-(Dimethylamino)-4',4'-dimethyl-4'H-imidazol-2'-yl>-2-phenylpentanamid

A: 132660-09-4
5-(Dimethylamino)-4,4-dimethyl-2-(1-phenylbutyl)-4H-imidazol

B: 108-80-5
isocyanuric acid

Conditions

Conditions	Yield
In 1,1,2,2-tetrachloroethylene for 72h; Heating;	A 93% B n/a
In 1,1,2,2-tetrachloroethylene Heating; Yields of byproduct given;

: 1118-02-1
trimethylsilyl isocyanate

: 108-80-5
isocyanuric acid

Conditions

Conditions	Yield
With water; triethylamine In acetone at 0 - 5℃; for 4h;	93%

: 25451-10-9
4-methyl-2,6-dioxa-heptanedioic acid diamide

: 57-13-6
urea

: 108-80-5
isocyanuric acid

Conditions

Conditions	Yield
at 200℃; Temperature; Inert atmosphere;	92.55%

: 87-90-1
trichloroisocyanuric acid

: 108-98-5
thiophenol

A: 108-80-5
isocyanuric acid

B: 882-33-7
diphenyldisulfane

Conditions

Conditions	Yield
With pyridine; water; benzoic acid In dichloromethane; acetonitrile at 40℃;	A n/a B 91%

: 132660-03-8
2-<5'-(Dimethylamino)-4',4'-dimethyl-4'H-imidazol-2'-yl>-2-phenylbutanamid

A: 132660-08-3
5-(Dimethylamino)-4,4-dimethyl-2-(1-phenylpropyl)-4H-imidazol

B: 108-80-5
isocyanuric acid

Conditions

Conditions	Yield
at 153℃;	A 90% B n/a
at 153℃; Yields of byproduct given;

: 87-90-1
trichloroisocyanuric acid

: 106-45-6
para-thiocresol

A: 103-19-5
di(p-tolyl) disulfide

B: 108-80-5
isocyanuric acid

Conditions

Conditions	Yield
With pyridine; water; benzoic acid In dichloromethane; acetonitrile at 40℃;	A 89% B n/a

: 57-13-6
urea

: 108-80-5
isocyanuric acid

Conditions

Conditions	Yield
In kerosene at 190℃;	88.9%

: 92250-33-4
2,4-bis(3,5-dimethyl-1H-pyrazol-1-yl)-6-methoxy-1,3,5-triazine

A: 67-51-6
3,5-dimethyl-1H-pyrazole

B: 108-80-5
isocyanuric acid

Conditions

Conditions	Yield
With hydrogenchloride; water for 2h; Reflux;	A 72% B 86%

Cyanuric acid Chemical Properties

other name:s-TRIAZINE-2,4,6-TRIOL;1,3,5-TRIAZINEtriol;s-triazinetriol, 1,3,5-TRIAZINE-2,4,6(1H,3H,5H)-trione, s-triazinetrione, tricarbimide, isocyanuric acid, and pseudocyanuric acid
MF: C₃H₃N₃O₃
MW: 129.07
EINECS: 211-620-8
Appearance is white crystalline powder.Density is 2.5 g/cm³ ;Melting point: 320–360 oC(decomp);Solubility in WATER :0.27 g/100 ml (25 oC) .Soluble in hot ethanol, pyridine, hot SULFURIC ACID, strong hydrochloric acid, insoluble in cold methanol, ether and chloroform, ACETONE, Benzene.
Following is the molecular structure of Cyanuric acid:

Cyanuric acid Uses

Cyanuric acid is mainly used for making new bleach, disinfectant, WATER treatment agent and inhibitor of resin, coating and metals CYANIDE etc.

Cyanuric acid Toxicity Data With Reference

1.	eye-rbt 500 mg/24H MLD	28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,152.
2.	eye-rbt 20 mg/24H rns MLD	MONS** Monsanto Co. Toxicity Information .(Monsanto Industrial Chemicals Co.,Wilmington, DE.: )
3.	orl-rat LD50:7700 mg/kg	ZKMAAX Zhurnal Eksperimental’noi i Klinicheskoi Meditsiny. 25 (1985),345.
4.	orl-mus LD50:3400 mg/kg	ZKMAAX Zhurnal Eksperimental’noi i Klinicheskoi Meditsiny. 25 (1985),345.

RTECS number :XZ1800000

Cyanuric acid Consensus Reports

Reported in EPA TSCA Inventory.

Cyanuric acid Safety Profile

Moderately toxic by ingestion. Questionable carcinogen with experimental tumorigenic data. An eye irritant. Irritating to abraided skin. Violent reaction with ETHANOL. Reacts with CHLORINE to form a spontaneously explosive product. When heated to decomposition it emits very toxic fumes of NO_x and CN^?. Used to stabilize CHLORINE solutions used in swimming pools.

Hazard Codes : Xi (Irritant)
Risk Statements :
R36-36/37/38 (Irritating to the eyes ;Irritating to eyes, respiratory system and skin)
Safety Statements :
S26-37/39 (In case of contact with eyes, rinse immediately with plenty of water and seek medical advice ;Wear suitable gloves and eye/face protection)
RIDADR : UN 3389 6.1/PG 1

Cyanuric acid Analytical Methods

For occupational chemical analysis use NIOSH: Cyanuric Acid 5030.

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