2-Butyne-1,4-diol

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2-Butyne-1,4-diol

Product Name: 2-Butyne-1,4-diol
CAS No.: 110-65-6
Chemical Name: 2-Butyne-1,4-diol
Synonyms: BYD;BOZ;But-2-yne-1,4-diol;1,4-BUTYNEDIOL;Butynediol;2-BUTYN-1,4-DIOL;2-Butin-1,4-diol;Dihydroxydimethylacetylene;2-Butynediol;agrisynthb3d
CBNumber: CB6852816
Molecular Formula: C4H6O2
Formula Weight: 86.09
MOL File: 110-65-6.mol

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2-Butyne-1,4-diol Property

Melting point:: 54 °C
Boiling point:: 238 °C(lit.)
Density: 1.2
vapor pressure: <0.1 mm Hg ( 55 °C)
refractive index: 1.4804
Flash point:: 306 °F
storage temp.: Store below +30°C.
solubility: 3740g/l
form: Crystalline Platelets or Flakes
pka: 12.72±0.10(Predicted)
color: slightly brown
PH: 4-7.5 (100g/l, H2O, 23℃)
Water Solubility: 3740 g/L (20 ºC)
BRN: 1071237
Exposure limits: ACGIH: TWA 0.1 ppm; STEL 0.3 ppm
OSHA: TWA 0.75 ppm; STEL 2 ppm
NIOSH: IDLH 20 ppm; TWA 0.016 ppm; Ceiling 0.1 ppm
Stability:: Stable. Highly flammable solid. Incompatible with strong oxidizing agents, acid chlorides, acid anhydrides, strong acids, strong bases.
LogP: -0.73 at 25℃
CAS DataBase Reference: 110-65-6(CAS DataBase Reference)
NIST Chemistry Reference: 2-Butyne-1,4-diol(110-65-6)
EPA Substance Registry System: 2-Butyne-1,4-diol (110-65-6)

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Safety

Hazard Codes: T,C
Risk Statements: 21-23/25-34-43-48/22
Safety Statements: 25-26-36/37/39-45-46
RIDADR: UN 2716 6.1/PG 3
WGK Germany: 2
RTECS: ES0525000
F: 23-10
Autoignition Temperature: 410 °C
TSCA: Yes
HazardClass: 6.1
PackingGroup: III
HS Code: 29053980
Hazardous Substances Data: 110-65-6(Hazardous Substances Data)
Toxicity: LD50 orally in Rabbit: 100 mg/kg

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

H373May cause damage to organs through prolonged or repeated exposure

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P314Get medical advice/attention if you feel unwell.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: B103209
Product name: 2-Butyne-1,4-diol
Purity: 99%
Packaging: 100g
Price: $57.2
Updated: 2024/03/01

Sigma-Aldrich

Product number: B103209
Product name: 2-Butyne-1,4-diol
Purity: 99%
Packaging: 1kg
Price: $114
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.01537
Product name: 2-Butyne-1,4-diol
Purity: (not stabilised) for synthesis
Packaging: 100g
Price: $39
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.01537
Product name: 2-Butyne-1,4-diol
Purity: (not stabilised) for synthesis
Packaging: 500g
Price: $77.1
Updated: 2024/03/01

TCI Chemical

Product number: B0749
Product name: 2-Butyne-1,4-diol
Purity: >99.0%(GC)
Packaging: 25g
Price: $16
Updated: 2024/03/01

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2-Butyne-1,4-diol Chemical Properties,Usage,Production

Chemical Properties

yellow solid. Soluble in water, acidic solution, ethanol and acetone, slightly soluble in chloroform, insoluble in benzene and ether.

Uses

2-Butyne-1,4-diol is used as a precursor to prepare 1,4-butanediol, 2-butene-1,4-diol and mucochloric acid. It is also used in textile additives, corrosion inhibitors, plasticizers, synthetic resins and polyurethanes. It is an important raw material of vitamin B6. Further, it is used for brightening, preserving and inhibiting nickel plating. In addition, it is used in biological studies for nematocidal activity.

Application

Basic brightener in nickel electroplating baths, also an important intermediate for organic synthesis; corrosion inhibitor; defoliant ; polymerization accelerator; stabilizer for chlorinated hydrocarbons; cosolvent for paint and varnish removal.

Definition

ChEBI: 2-Butyne-1,4-diol is a butynediol that is but-2-yne substituted by hydroxy groups at positions 1 and 4. It is used to produce butanedioland butenediol, in metal plating andpickling baths, and in making the carbamateherbicide Barban (Carbyne).

General Description

1,4-butynediol appears as white to light-brown solid or brownish-yellow aqueous solution. Solid sinks and mixes with water. (USCG, 1999)

Air & Water Reactions

Water soluble.

Reactivity Profile

Pure 2-Butyne-1,4-diol is non-explosvie. Small amounts of certain impurities-alkali hydroxides, alkaline earth hydroxides, halides-may cause explosive decomposition upon distillation. 2-Butyne-1,4-diol should not be treated with basic catalysts in the absence of a solvent at room temperature, and its stability is less with elevated temperatures. In strong acids, contamination with mercury salts can also result in violent decomposition [NFPA 491M 1991].

Hazard

Toxic by ingestion. May explode on contamination with mercury salts, strong acids, and alkaline earth hydroxides and halides at high temperatures. May cause dermatitis.

Health Hazard

2-Butyne-1,4-diol exhibits moderate to hightoxicity in test animals. It is about 10 timesmore toxic than are the saturated C4 diols.The oral LD50 value in rats is 0.125 mL/kg.It causes irritation to the skin.

Fire Hazard

Noncombustible solid, flash point (open cup) 152°C (305.6°F). It is stable at room temperature. But the dry compound explodes in the presence of certain heavy metal salts, such as mercuric chloride. Heating with alkaline solution may result in an explosion.

Safety Profile

A poison by ingestion. A skin sensitizer upon long or repeated contact. Moderately explosive. When heated to decomposition it emits acrid smoke and fumes and may explode. Explosive reaction with traces of alkaltes, alkali earth hydroxides, halide salts, strong acids, mercury salts + strong acids. See also ACETYLENE COMTOUNDS.

Synthesis

2-butyne-1,4-diol is carried out by reaction under pressure of acetylene and an aqueous solution of formaldehyde, catalyzed by copper acetylide.

storage

2-Butyne-1,4-diol can be stored in steel,aluminum, nickel, glass, epoxy, and phenolicliner containers. Rubber hose may be usedfor transfer. Avoid contact with heavy metalsalt contaminants.

Purification Methods

Crystallise the diol from EtOAc. [Beilstein 1 IV 2687.]

2-Butyne-1,4-diol Preparation Products And Raw materials

Raw materials

Ethyl ketone Propargyl alcohol Formaldehyde Paraformaldehyde Calcium carbide Acetylene

Preparation Products

3-Bromofuran 5-Oxa-2-octyne-1,7-diol Ethyl 3-furancarboxylate Propargyl alcohol BARBAN 1,4-Butanediol Erythritol 1,4-Dihydroxy-2-butanone BE-strong efficient nickel plating brightener 3-FURANMETHANOL 1,2,4-Butanetriol 1,4-Bis(2-hydroxyethoxy)-2-butyne 2-Butene-1,4-diol

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View Lastest Price from 2-Butyne-1,4-diol manufacturers

Hebei Duling International Trade Co. LTD

Product: 2-Butyne-1,4-diol 110-65-6
Price: US $1.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 300MT/month
Release date: 2022-11-24

Hebei Yanxi Chemical Co., Ltd.

Product: but-2-yne-1,4-diol 110-65-6
Price: US $40.00-40.00/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 10 tons
Release date: 2023-09-27

Hebei Guanlang Biotechnology Co,.LTD

Product: 2-Butyne-1,4-diol 110-65-6
Price: US $5.00-2.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10000kg
Release date: 2023-09-11

110-65-6, 2-Butyne-1,4-diolRelated Search:

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