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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
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.]

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2-Butyne-1,4-diol Suppliers

Hubei Lingyan Biotechnology Co., Ltd
Tel
13297019205
Email
2413323910@QQ.COM
Country
China
ProdList
354
Advantage
58
wuhan Bright Chemical Co.,Ltd
Tel
+86-027-85583407 +86-13554014698
Fax
+86-27-85804899
Email
purchase_peng@brightchemical.com.cn
Country
China
ProdList
63
Advantage
58
Wuhan Silworld Chemical Co.,Ltd
Tel
027-85613400 15827173649
Fax
027-85613419
Email
info@silworldchemical.com
Country
China
ProdList
325
Advantage
58
Yikang Chemical(Hubei)Co., LTD
Tel
027-18971353-902 18971353902
Email
2242508613@qq.com
Country
China
ProdList
7871
Advantage
58
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Beijing dtftchem Technology Co., Ltd.
Tel
010-60275820 13031183356
Fax
010-60270825
Email
elainezt@sina.com
Country
China
ProdList
1390
Advantage
62
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
Advantage
61
Beijing Ouhe Technology Co., Ltd
Tel
010-82967028 13552068683
Fax
+86-10-82967029
Email
2355560935@qq.com
Country
China
ProdList
12390
Advantage
60
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View Lastest Price from 2-Butyne-1,4-diol manufacturers

Qingdao RENAS Polymer Material Co., Ltd.
Product
2-Butyne-1,4-diol 110-65-6
Price
US $0.00/kg
Min. Order
20kg
Purity
99%
Supply Ability
20 tons
Release date
2024-09-29
Hebei Yanxi Chemical Co., Ltd.
Product
but-2-yne-1,4-diol 110-65-6
Price
US $40.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-09-27
Hebei Chuanghai 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
2024-08-19

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