Acetyl Ketene / Diketene CAS 674-82-8
2 Inquiries
674-82-8
Shanghai, China
Zhishang Chem
100g; 1kg; 25g
2022-12-31
Dichloromethane,Linocaine hydrochloride
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Product Description
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Seller Information
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Inquiry History
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Description
Melting point -7.5°C Boiling point 69-70 °C100 mm Hg(lit.) density 1.09 g/mL at 25 °C(lit.) vapor density 2.9 (vs air) vapor pressure 7.9 mm Hg ( 20 °C) refractive index n20/D 1.439(lit.) Fp 95 °F storage temp. 2-8°C CAS DataBase Reference 674-82-8(CAS DataBase Reference) NIST Chemistry Reference 2-Oxetanone, 4-methylene-(674-82-8) EPA Substance Registry System Diketene (674-82-8) Application:Used as intermediate of dyestuff, pigment, pesticide, organic synthesis
Packing
· 1kg/aluminium foil bag, with two plastic bags inside.
· 25kg/fiber drum, with two plastic bags inside.
Size:ID 42cm*H52cm,0.08m3/drum;
Net Weight:25kgs Gross Weight:28kgs.
Delivery- ≤50kg, Express delivery recommended, usually called as DDU service;
- ≤500kg,Air shipping recommended, usually called as CIF service;
- >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;
- For high value products, please select air shipping and express delivery for safety.
About us
Shandong Zhishang Chemical Co.,Ltd owned by Zhishang International Group,is a new chemical enterprise with R&D.
manufacture and sales department.
Our company mainly produce pharmaceutical raw materials and intermediate(expecially Carbohydrate derivatives series).
In recent years,we had made big breakthrough in feed additive,plant extraction,industrial chemicals line.
With our "Honest operation,Quality controlling,Clients first"theory,our company enjoy good repute both home and abroad.
The R&D center located in High-tech zone in Jinan,our production based is in Chemical park of Zhangqiu and Tai'an.Our production process strictly conform with ISO 9001 and ISO 2000 standard.Our lab and workshop also follows strictly with GMP standard.Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term and stable business relations.We have large scale liquid chemical terminal and professional chemical warehouse.
We will always adhere to expand business scope and provide the best quality products and service to the world.
- DO YOU ACCEPT SAMPLE ORDER?
We accept sample orders. We will make samples before mass production, and after sample approved, we'll begin mass production. Doing 100% inspection during production, then do random inspection before packing.
2.HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?
You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
3.WHAT'S YOUR MOQ?
Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
4.DO YOU SUPPLY PRODUCT REPORT?
Yes. We'll give you product analysis report before shipping.
5.IS THERE A DISCOUNT?
Different quantity has different discount.
Our Advantage
10 Years Experience
Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term.
Quality service
Company cooperates with research institutes. We strictly control the process of raw materials up to finished product.
24 hour serviceQuick and clear response to customers questions. Warm after sale service, we will help to solve the problems in your usage.
High quality
Dedicated to serving customers first, we provide reasonable prices, high quality products.Basic Info-
Product Name:
Diketene
Other Name:2-Oxetanone,4-methylene-;3-Butenoic acid,3-hydroxy-,β-lactone;Diketene;Ethenone,dimer;4-Methylene-2-oxetanone;Ketene dimer;NSC 93783;2130-41-8;6144-29-2
CAS No.:674-82-8
Molecular Formula:C4H4O2
InChIKeys:InChIKey=WASQWSOJHCZDFK-UHFFFAOYSA-N
Molecular Weight:84.07340
Exact Mass:84.07
EC Number:211-617-1
UNII:0DZ97C3Z7D
ICSC Number:1280
NSC Number:93783
UN Number:2521
DSSTox ID:DTXSID9027289
Color/Form:Colorless liquid; turns brownish-yellow upon standing at room temperature|Colorless liquid when pure|Light colored liquid
Categories:
Characteristics-
PSA:
26.30000
XLogP3:0.44700
Appearance:COLOURLESS LIQUID
Density:1.0897 g/cm3
Melting Point:-6.5 °C
Boiling Point:127.4 °C
Flash Point:34
Refractive Index:1.439
Water Solubility:Solubility in water: reaction
Storage Conditions:2-8ºC
Vapor Pressure:7.9 mm Hg ( 20 °C)
Vapor Density:2.9 (vs air)
Explosive limit:Explosive limits , vol% in air: 2-11.7
Odor:Pungent odor
Henrys Law Constant:Henry's Law constant = 6.07X10-4 atm-cu m/mol at 25 °C (est)
Experimental Properties:BP: 126-127 °C with slight decomposition; 69-71 °C at 100 mm Hg. MP: -7.5 °C|Readily polymerizes on standing|Specific gravity: 1.0939 at 18 °C/4 °C; 1.0905 at 23 °C/4 °C|Specific gravity: 1.09471 at 20 °C/4 °C; 1.088754 at 25 °C/4 °C|Decomposes in water, can react with oxidizing materials|There is no known inhibitor /of polymerization/. Polymerization of uncontaminated diketene is negligible if kept at or near 0 °C.|For more Other Experimental Properties (Complete) data for Acetyl ketene (9 total), please visit the HSDB record page.
Air and Water Reactions:Highly flammable. Slightly soluble in water.
Reactive Group:Esters, Sulfate Esters, Phosphate Esters, Thiophosphate Esters, and Borate Esters
Reactivity Alerts:Highly Flammable
Reactivity Profile:DIKETENE is a very reactive dimer, it may undergo a spontaneous decomposition followed by explosion or ignition [Vervalin, 1973, p.86]. In the presence of bases, amines, mineral acids or Lewis acids a violent polymerization will occur, accompanied by gas evolution [Zdenek, F. et al., Czech Pat. 156 584, 1975].
Autoignition Temperature:590 °F (310 °C)|275 °C
Heat of Vaporization:42.89 kJ/mol at 25 °C
Critical Temperature & Pressure:Critical temperature: 310 °C (583.16 K); critical pressure: 5.47 MPa
Hazard IdentificationClassification of the substance or mixture
Flammable liquids, Category 3
Acute toxicity - Category 4, Inhalation
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H226 Flammable liquid and vapour
H332 Harmful if inhaled
Precautionary statement(s) Prevention P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.
P242 Use non-sparking tools.
P243 Take action to prevent static discharges.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
Response P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse affected areas with water [or shower].
P370+P378 In case of fire: Use ... to extinguish.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317 Get medical help.
Storage P403+P235 Store in a well-ventilated place. Keep cool.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
NO open flames, NO sparks and NO smoking. Above 33°C use a closed system, ventilation and explosion-proof electrical equipment. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Fireproof. Separated from acids, bases and food and feedstuffs. Cooled. Dry. Store only if stabilized.Store at 32 deg F (0 deg C) in a standard flammable liquids storage warehouse, room, or cabinet. Special vented containers may be required. Separate from oxidizing materials, acids, and alkalies.
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Seller Information
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Business Type:
Manufactory
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Main Products:
Dichloromethane,Linocaine hydrochloride
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Location:
BUILDING 1,HISENSE INTELLIGENCE VALLEY,NO.2116,OF PHOEIX ROAD, HIGH-TECH ZONE ,JINAN CITY ,SHANDONG PROVINCE,CHINA
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Payment Terms:
D/P,L/C,D/A
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Average lead Time:
15
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Total Annual Revenue:
$10 million-$25 million
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Total Employees:
11-50
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Year of Establishment:
2016
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Inquiry History2 Inquiries
Country Product Purchase Quantity Date Posted 
Russia
4-Methyl-2H-oxet-2-one
10 KG Nov 26, 2024
Russia
Acetyl ketene
10 KG Nov 25, 2024 Post an enquiry for this product
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