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| CAS No.: | 29385-43-1 |
|---|---|
| Name: | Tolyltriazole |
| Molecular Structure: | |
 |
|
| Formula: | C7H7N3 |
| Molecular Weight: | 133.15 . |
| Synonyms: | 1H-Benzotriazole,4(or 5)-methyl-;Preventol CI 7-100;Cobratec TT 35I;Cobratec TT 100;29385-43-1;Methylbenzotriazole (TTA);Tolyltriazole(TTA);TTA Methylbenzotriazole; |
| EINECS: | 249-596-6 |
| Density: | 1.273 g/cm3 |
| Melting Point: | 76-87 °C |
| Boiling Point: | 289.3 °C at 760 mmHg |
| Flash Point: | 137.4 °C |
| Solubility: | water: <0.01 g/100 mL at 18 °C |
| Appearance: | light brown powder or granules |
| Hazard Symbols: | R22:; R37:; |
| Risk Codes: | 20/21/22-36/37/38 |
| Safety: | 22-36/37/39 |
| PSA: | 83.14000 |
| LogP: | 2.53260 |
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Chemistry
Molecular Structure of Methyl-1h-benzotriazole (CAS NO.29385-43-1):
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IUPAC Name: 4-methyl-2H-benzotriazole
Empirical Formula: C7H7N3
Molecular Weight: 133.1506
H bond acceptors: 3
H bond donors: 1
Freely Rotating Bonds: 0
Polar Surface Area: 30.71 Å2
Index of Refraction: 1.68
Molar Refractivity: 39.53 cm3
Molar Volume: 104.5 cm3
Surface Tension: 64.7 dyne/cm
Density: 1.273 g/cm3
Flash Point: 137.4 °C
Enthalpy of Vaporization: 52.86 kJ/mol
Boiling Point: 289.3 °C at 760 mmHg
Vapour Pressure: 0.00222 mmHg at 25°C
Melting point: 76-87 ºC
Classification Code: Mutation data
Water Solubility : <0.01 g/100 mL at 18 ºC
Appearance: White or Light yellow particle shape solid
InChI
InChI=1/C7H7N3/c1-10-7-5-3-2-4-6(7)8-9-10/h2-5H,1H3
Smiles
c12c(cccc2)nnn1C
Package and Storage: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag,, or confirmed by clients. Storage in room shady and dry place.
Production
First, dissolved with alcohol or alkali, then added into circulating water system, the dosage of 2-10mg/L is preferred. If the metal is badly corroded, 5-10 times of normal dosage should be expected.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rabbit | LD | skin | > 4gm/kg (4000mg/kg) | National Technical Information Service. Vol. OTS0520643, | |
| rat | LC | inhalation | > 1730mg/m3/1H (1730mg/m3) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) | National Technical Information Service. Vol. OTS0521119, |
| rat | LD50 | oral | 675mg/kg (675mg/kg) | Huntingdon Research Center Reports. Vol. -, Pg. -, 1972. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Specification
Methyl-1h-benzotriazole , with CAS number of 29385-43-1, can be called 1H-1,2,3-benzotriazole, 4-methyl- ; 1H-Benzotriazole, 4(or 5)-methyl- ; 249-921-1 [EINECS/ELINCS] ; 1H-benzotriazole, 4-methyl- . Methyl-1h-benzotriazole (CAS NO.29385-43-1) is mainly for metals (silver, lead, nickel, zinc, copper and copper metal) inhibitor and anti-rust agents, widely used in anti-rust oil (ester) products, used for copper and copper alloy vapor corrosion inhibitors, Circulating water treatment agent, lubricant additives. Methyl-1h-benzotriazole (CAS NO.29385-43-1) can also scale with a variety of agents, biocide used in conjunction with, especially for circulating cooling water system corrosion is very good.
Methyl-1h-benzotriazole (CAS NO.29385-43-1) can be used as corrosion inhibitor of copper and copper alloy, it also has corrosion inhibition for black metals. This product is absorbed on metal surface to form a thin membrane to protect copper and other metals from corrosion of air and other harmful subjects. The membrane is more uniform. When used together with MBT, the effect is better.
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