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590-93-2

590-93-2 structure
590-93-2 structure
Name 2-Butynoic acid
Synonyms 2-Butynoic acid
MFCD00004363
EINECS 209-695-7
But-2-ynoic acid
Density 1.2±0.1 g/cm3
Boiling Point 203.0±9.0 °C at 760 mmHg
Melting Point 78-80 °C(lit.)
Molecular Formula C4H4O2
Molecular Weight 84.073
Flash Point 90.9±15.2 °C
Exact Mass 84.021126
PSA 37.30000
LogP 0.85
Vapour Pressure 0.1±0.8 mmHg at 25°C
Index of Refraction 1.468
Storage condition 2-8°C
Symbol GHS05
GHS05
Signal Word Danger
Hazard Statements H314
Precautionary Statements P280-P305 + P351 + P338-P310
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
Hazard Codes C:Corrosive;
Risk Phrases R20/21/22;R34
Safety Phrases S26-S27-S36/37/39-S45
RIDADR UN 3261 8/PG 2
WGK Germany 3
Packaging Group II
Hazard Class 8
HS Code 2916190090
HS Code 2916190090
Summary 2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

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title: CAS No. 590-93-2 | Chemsrc address: https://www.chemsrc.com/en/baike/408013.html

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