Industry Grade Calcium Carbide for Chemical Acetylene Gas Material 25-50mm 295L/Kg

• CAS No.: 75-20-7
• Formula: Cac2
• EINECS: 200-848-3
• Classification: Non-Metal
• Appearance: Solid
• Grade Standard: Industrial Grade
• Model NO.: Calcium Carbide
• Atomic No.: Single Atomic
• Product: Calcium Carbide 50mm
• Product Name: Calcium Carbide 50-80mm 295 L/Kg
• Other Names: Calcium Carbide
• Model Number: Calcium Carbide Mongolia
• Brand Name: Calcium Carbide 295L Kg
• Shape: Stone Cac4
• Application: Acetylene Gas
• Gas Yield: 280-290L/Kg, 295L/Kg, 305L/Kg
• Cac2: 90%Min
• Color: Grey, Black
• Purity: 90%, 90% Min Calcium Carbide
• Grade: Industrial Grade
• H2s%(V/V): 0.015%Max
• Transport Package: Drum
• Specification: 100kg/ 50kg per drum
• Trademark: HA
• Origin: China
• HS Code: 28491000
• Production Capacity: 50000tons/Year

Product Description

 

Product Description

Calcium Carbideore is yellow-brown or black bulk solid, pure white crystal (containing higher CaC2 is purple). Density 2.22g/cubic cm, melting point 2300ºC (related to the content of CaC2), immediately react with water, generate acetylene, and release heat, calcium carbide content different melting point also changes.

 

Impurities: because calcium carbide often contains calcium arsenide (Ca3 As2), calcium phosphide (Ca3 P2) and other impurities, and water action at the same time release hydrogen arsenide (AsH3), phosphide (PH3) and other toxic gases, so the use of acetylene produced by calcium carbide is toxic.

Product	calcium carbide calcium carbide 295l kg
H.S.CODE	28491000
CAS NO.	75-20-7
EINECS NO.	200-848-3
Color	Grey, dark grey
Usage	Producing acetylene gas
Grade	tech grade
Appearance	Grey or dark grey stone

ITEM		INDEX
Gas Yield 20°C 101.3 Kpa L/kg ≥	Size	Gas Yield			Size percentage	Ash,%
		Top	A Grade	Accept Grade
	2-4mm	260	240	220	≥90	≤1
	4-7mm	280	260	240	≥90	≤1
	7-15mm	290	270	250	≥90	≤1
	15-25mm	300	285	260	≥90	≤1
	25-50mm	300	295	280	≥90	≤1
	50-80mm	300	295	280	≥90	≤1
	80-200mm	300	295	280	≥90	≤1
PH3 %(V/V) ≤		0.08
H2S %(V/V) ≤		0.10
Quality Standard		GB10665-2004

Detailed Photos

 

Calcium carbide is an inorganic compound, white crystal, industrial product is gray black block, the cross section is purple or gray. In contact with water, a fierce reaction occurs immediately, forming acetylene and releasing heat. Calcium carbide is an important basic chemical raw material, mainly used to produce acetylene gas. Also used in organic synthesis, oxylene welding and so on

 

Product application

 

Test Item	Index (GB10665-2004)	Result
Gas Yield Rate	≥295L/kg	298L/kg
Lump size	25-50mm or 50-80mm	25-50mm or 50-80mm
H2S content	< 0.1%	0.07%
PH3 content	< 0.06%	0.04%
Packing way	50kg or 100kg/new iron drum
Loading qty	22.5tons/20fcl

1) Acetylene generated by the reaction of calcium carbide with water can synthesize many organic compounds such as: synthetic rubber, artificial resin, acetone, keone, carbon black, etc.; At the same time acetylene oxide flame is widely used in metal welding and cutting.

 

(2) When powdered calcium carbide is heated with nitrogen, calcium cyanamide is generated, namely lime nitrogen:

 

CaC2 + N2 → CaCN2 + C, ΔH = -296kJ/mol

 

Lime nitrogen is an important raw material for preparation of cyanamide. The melt produced by the reaction of heated lime nitrogen with salt is used in gold mining and nonferrous metal industry.

 

(3) calcium carbide itself can be used in iron and steel industry desulfurization agent.

 

(4) The production of polyvinyl chloride (PVC), calcium carbide production of PVC using calcium carbide CaC2, in the water to produce acetylene (C2H2), acetylene and hydrogen chloride (HCl) synthesis of vinyl chloride monomer (CH2=CHCl), and then through the polymerization reaction of vinyl chloride to produce polyvinyl chloride - [CH -- CHCI]n -- chemical reaction method.

Packaging & Shipping

Calcium carbide is stored in a cool, dry and well-ventilated warehouse. Keep away from fire and heat source. Keep relative humidity below 75%. The package must be sealed and protected from moisture. Should be stored separately from acids and alcohols, and do not mix storage. The storage area shall be equipped with suitable materials to hold the leakage

Certifications

Company Profile

Hebei Hangao Chemical Co., Ltd. is mainly committed to the research and development of a variety of more suitable for different industries and user applications of professional products, We have Common chemicals, dangerous chemicals, food additives. Hebei Hangao Chemical Co., Ltd is a high-tech and environmentally friendly enterprise, mainly producing sodium tripolyphosphate, sodium hexametaphosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, sodium gluconate, sodium acetate, polyacrylamide, polyaluminum chloride and other phosphate and water treatment agents. Products are widely used in urban water supply, drainage, power, steel, chemical, oil, paper, medicine, food and many other fields.

 

FAQ

Q1.How can I get samples?
A: You can contact us and then we arrange samples for you.

Q2.Which kind of payment terms can you accept?
A:We accept L/C,T/T and other payment terms.

Q3: How to confirm the Product Quality before placing the order?
A: You can get free samples for the product that you needonly pay the shipping cost or arrange a courier to us and takethe samples. You can send us your product specifications andrequests,we will arrange other things well.

Q4:What's your MOQ ?
A:Our MOQ is 1000kg .

Q5: Is there any possible to use my appointed label orpackage?
A: Yes.If needed,we'd like to use your label or packageaccording to your requirement.

Q6: How can you guarantee the goods you offer is qualified?
A: We alwavs believe honesty and responsibility are basis ofone company,so whatever products we provide for you allare qualified.We will have goods tested and provide COA before arrange delivery for you.