2-ȫ˵
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12δ֪׷
2-ٿƣ߷Ʒ

2-߰ȫ˵

2-ȫ˵
Product Identification
Product Name2-Phenylbenzimidazole
SynonymsGainex
CAS716-79-0
FormulaC13H10N2
Molecular Weight194.24
EINECS211-939-2
RTECSDE0360000
RTECS ClassDrug
Merck12,7428
Beilstein/Gmelin7087
Beilstein Reference5-23-08-00437

Physical and Chemical Properties
AppearanceBeige powder.
Solubility in waterInsoluble
Melting Point211
Boiling Point422
pKa/pKb8.65 (pKb)
Partition Coefficient2.86

First Aid Measures
IngestionIf victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
InhalationGet medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
SkinGet medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.
EyesFlush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage
StorageStore in a cool, dry place. Keep container closed when not in use.
HandlingWash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Exposure Controls/Personal Protection
Personal ProtectionEyes: Wear chemical ggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
RespiratorsA respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Exposure EffectsThe toxicological properties of this material have not been investigated.

Fire Fighting Measures
Fire FightingWear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire.

Accidental Release Measures
Small spills/leaksClean up spills immediately, using the appropriate protective equipment.

Stability and Reactivity
StabilityStable under normal temperatures and pressures.
DecompositionIrritating and toxic fumes and gases.

Hazards Identification
EC Safety PhraseS 22 24/25

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