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Chemical Information
Flash_Point 90.9±15.2 °C
Molecular_Formula C4H4O2
Density 1.2±0.1 g/cm3
Exact_Mass 84.021126
LogP 0.85
Boiling_Point 203.0±9.0 °C at 760 mmHg
Melting_Point 78-80 °C(lit.)
Molecular_Weight 84.073
Vapour_Pressure 0.1±0.8 mmHg at 25°C
PSA 37.30000
Index_of_Refraction 1.468
Safe Information
Risk_Phrases R20/21/22;R34
WGK_Germany 3
Hazard_Class 8
Safety_Phrases S26-S27-S36/37/39-S45
Hazard_Codes C:Corrosive;
Packaging_Group II
Precautionary_Statements P280-P305 + P351 + P338-P310
HS_Code 2916190090
Symbol GHS05
Signal_Word Danger
Personal_Protective_Equipment Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
RIDADR UN 3261 8/PG 2
Hazard_Statements H314
Product Information
Flash_Point 90.9±15.2 °C
Symbol GHS05
CAS_Number 590-93-2
Signal_Word Danger
Common_Name 2-Butynoic acid
Molecular_Formula C4H4O2
Melting_Point 78-80 °C(lit.)
Molecular_Weight 84.073
MSDS ChineseUSA
Density 1.2±0.1 g/cm3
Boiling_Point 203.0±9.0 °C at 760 mmHg
None