Name | butynedioic acid |
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Synonyms |
MFCD00004362
Acetylendicarboxylate EINECS 205-536-0 Acetylenedicarboxylic acid but-2-ynedioic acid 2-Butynedioic acid |
Density | 1.7±0.1 g/cm3 |
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Boiling Point | 362.4±25.0 °C at 760 mmHg |
Melting Point | 180-187 °C (dec.)(lit.) |
Molecular Formula | C4H2O4 |
Molecular Weight | 114.056 |
Flash Point | 187.2±19.7 °C |
Exact Mass | 113.995308 |
PSA | 74.60000 |
LogP | 0.34 |
Vapour Pressure | 0.0±1.7 mmHg at 25°C |
Index of Refraction | 1.560 |
Storage condition | 2-8°C |
Water Solubility | soluble |
Symbol |
GHS06 |
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Signal Word | Danger |
Hazard Statements | H301-H315-H319-H335 |
Precautionary Statements | P261-P301 + P310-P305 + P351 + P338 |
Personal Protective Equipment | Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges |
Hazard Codes | T:Toxic;Xi:Irritant; |
Risk Phrases | R25;R36/37/38 |
Safety Phrases | S26-S45-S37/39 |
RIDADR | UN 2811 6.1/PG 3 |
WGK Germany | 3 |
Packaging Group | II |
Hazard Class | 6.1 |
HS Code | 29171990 |
Precursor 8 | |
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DownStream 9 | |
HS Code | 2917190090 |
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Summary | 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |