Products Description
Product Name: 2-Butynoic acid
CAS: 590-93-2
EINECS: 209-695-7
Melting point: 78-80 °C (lit.)
Boiling point: 200-203°C
Density: 0,9641 g/cm3
Refractive index: 1.3918 (estimate)
Fp: 200-203°C
Specification
| Items | Specifications |
| Appearance | Colorless and transparent liquid |
| Purity | 99% |
| Storage temp. | Sealed in dry,2-8°C |
| Package | 1 kg/bag, 20 kg/drum, 25 kg/drum |
Application
1. 2-Butynoic acid is primarily used as a building block in organic synthesis, particularly for producing pharmaceuticals, agrochemicals, and specialty chemicals via reactions involving its acetylene and carboxyl functional groups.
2. 2-Butynoic acid CAS 590-93-2 serves as a precursor for conjugated enynes, heterocyclic compounds, and polymer modifiers in material science and medicinal chemistry.
3. 2-Butynoic acid functions as an intermediate in the synthesis of vitamins, fragrances, and corrosion inhibitors.
Storage and Precautions
1. Store 2-butynoic acid in a cool, dry, well-ventilated area, protected from light and moisture, in tightly sealed, corrosion-resistant containers under an inert atmosphere (e.g., nitrogen) to prevent polymerization and degradation.
2. Keep 2-butynoic acid CAS 590-93-2 strictly separate from oxidizing agents, bases, reducing agents, and reactive chemicals to avoid exothermic reactions, gas release, or hazardous decomposition.
3. Handle 2-butynoic acid with extreme care using non-sparking tools and grounded equipment; ensure containers are clearly labeled and stored in a dedicated, secure area.
Emergency response to leakage
1. Immediately evacuate and isolate the spill area, eliminate all ignition sources, and ensure forced ventilation; avoid direct contact and prevent the material from entering drains or soil.
2. Carefully neutralize spilled 2-butynoic acid CAS 590-93-2 with a suitable alkaline substance (e.g., sodium bicarbonate) if trained to do so safely, then absorb with inert materials (e.g., sand, vermiculite).
3. Collect neutralized residue and contaminated absorbents into sealed, labeled containers for disposal as hazardous chemical waste; clean the surface thoroughly with water and dispose of all waste according to hazardous material regulations.
Safety Information
1. 2-Butynoic acid is corrosive and causes severe skin burns, eye damage, and respiratory tract irritation upon contact or inhalation of vapors/mists.
2. 2-Butynoic acid CAS 590-93-2 is harmful if swallowed or inhaled, and repeated or prolonged exposure may cause sensitization or organ damage; acetylene compounds may pose explosion risks under certain conditions.
3. Always handle 2-butynoic acid in a certified fume hood or closed system, wearing appropriate PPE including chemical-resistant gloves, face shield, chemical goggles, and protective clothing.
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| 10 | If you want to need more information,welcome to contact us at any time.
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Packaging




Transportation & Payment

About Transportation
Depending on the requirements of our clients, we can give a variety of transportation options.
For smaller orders, we offer air shipping or international courier services like FedEx, DHL, TNT, EMS, and numerous other unique lines of international transit.
We can transport by sea to a specified port for bigger amounts.
Additionally, we can offer unique services based on the requirements of our clients and the characteristics of their goods.

* We can offer a range of payment options to our clients.
* When the sum is modest, clients typically pay with PayPal, Western Union, Alibaba, and other similar services.
* When the sum is significant, clients typically pay with T/T, L/C at sight, Alibaba, and so on.
* Furthermore, an increasing number of consumers will use Alipay or WeChat Pay to make payments.
FAQ
1
May I get any sample from you?
Re: Yes, of course, we'd like to provide sample to you according to your demands.
2
What is your MOQ?
Re: Usually our MOQ is 1 kg, but sometimes it is also flexible and depends on different products.
3
How long I can get my goods after payment?
Re: If shipped by couriers or air, it usually cost 5-10 days.
If shipped by sea, it usually cost 3-40 days, which depends on your destination.
4
Do you have any after-sales service?
Re: Yes, we will inform you progress of the order, such as product preparation, declaration, transportation follow-up, customs clearance assistance, technical guidance, etc.
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