Calcium Carbide of good quality and best price

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Loading Port:
Tianjin
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TT OR LC
Min Order Qty:
22.5
Supply Capability:
1000 m.t./month

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Product Description:

This product is lumpy substance, its surface is a little deep gray, has slight nasty smell. It can produce acetylene gas when met water, it can burn when meets fire. The acetylene gas mix with air will form explosive gas (explosive range of acetylene gas in the air is 2.3% - 81%).

 

Technical specifications and features

1. Name

Calcium Carbide

 

2. Molecular formula

CaC2

3. UN

1402

4. Class

4.3

5. HS code

28491000

6. Gas yield20 101.3 Kpa

≥295L/KG

7. PH3(V/V)

≤0.08%

8. H2S(V/V)

≤0.1%

9.Molecular weight

64.10

(according to 1995 international relative atomic mass)

10. SIZE

4-7,7-15,15-25,25-50,50-80,80-120MM

11. Packing

50kg or 100kg iron drum

 

Cautions during transportion:

The packing must be kept in good condition and the goods should be stored in a dry,cool and ventilated place.It should be separate from the cargo can burn and acid.It should avoid meeting water and moisture.It should give off the acetylene in iron drum before storing in warehouse. Rolling drums,heavy putting down and colliding are not allowed to avoid the spark leads to explosion.


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Q:Nutritional characteristics of carbohydrates and inorganic salts in vegetables
Inorganic salts: its rich, such as calcium, phosphorus, iron, potassium, sodium magnesium, copper, is an important source of inorganic salts, to maintain the body's role in acid-base balance play an important role. Green leafy vegetables generally contain more than 100mg / 100g. But should pay attention to the removal of part of the oxalic acid during cooking, may be conducive to the absorption of inorganic salts.
Q:What are the nutritional requirements for bacterial growth?
For inorganic salts: bacteria need a variety of inorganic salts to provide a variety of elements of bacterial growth, which requires the concentration of 10.3 ~ 10.4mol / L elements for the common elements, the need for concentration in the
Q:Can inorganic salts be tested by LC / MS?
LC-MS mass spectrometer for organic matter, inorganic salts can not be atomized not applicable, and will pollute the instrument.
Q:what is the function of salts in DNA extraction?
The role of the salt is to neutralize the charge of the DNA's sugar phosphate backbone. This makes the DNA less hydrophilic (less soluble in water). Ethanol has a lower dielectric constant than water so it's used to promote ionic bonds between the Na+ (from the salt) and the PO3- (from the DNA backbone) causing the DNA to precipitate, to extract DNA finally..
Q:An inorganic salt is dissolved in water and yields a solution that has color. State the substance?
Many inorganic salts form colored solutions ..copper ( II) sulfate ( Blue ) nickel (II) acetate = green, mangaanse ( II) chloride = pink, iron(III) chloride = yellow, potassium dichromate, orange and so many more Can you be more specific ?
Q:Inorganic salt is not salty
HNO3 (nitric acid) dilute: first bitter, and then the whole tongue Ma, and then pain, from the white spot, sustained pain, 3-4 days after the dissipated, while the mouth felt a big suction car exhaust. Is an enhanced version of concentrated sulfuric acid).
Q:Which solvents have some solubility in inorganic salts
A wide variety of dyes, dissolved complex. The original dyes are organic, but some salt, some metal complexes, some of the larger molecules of the fused ring compounds, some polymer heterocyclic compounds, in some common organic solvents in the solubility is better than disperse dyes Raw dyes and oil-soluble dyes (this is actually the raw material of solvent pigments, strictly speaking, not dyes). There are basically additives in the finished dyes, such as direct dyes, acid dyes, reactive dyes, cationic dyes and other water-soluble dyes will be added inorganic salts, disperse dyes, reducing dyes will be added sulfonate sodium dispersant. In addition, the dye and other chemical products, their purity requirements are generally very low, will allow the presence of certain insoluble impurities. So the organic solvent can not be completely dissolved dye products really is very common or even a normal phenomenon.
Q:does the water solubility of an inorganic salt increase or decrease as the temp of the water is increased. Exp?
IIRC, it depends on the salt.
Q:Milk food rich in nutrition, in addition to containing a variety of inorganic salts which also contain three types of organic energy can be organic
Fat Glucose Protein
Q:Why can quaternary ammonium salts catalyze the heterogeneous reaction between water-soluble inorganic salts and organic compounds
Quaternary ammonium salts have the characteristics of surfactants, with the water phase of the nucleophile in the composition of the ion pair, into the organic phase, thereby promoting the heterogeneous reaction faster 6224

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