Calcium Carbide with SGS TEST and Lower Price

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Product Description:

Commodity:Calcium carbide

 

Physical appearance:Brown,grey,black,purple solid

 

CAS NO:75-20-7

 

Molecular Formula:CaC2

 

Molecular Weight:64.10

 

Specification:

Index

Value

Gas Yield <L/kg>

 

280/285/290/295/300/305/310/315

PH3 %<v/v>

 

≤0.06

 

H2S %<v/v>

 

≤0.1

 

Grain <mm>

 

25/50/80/120

 

 

Package:50 or 100 kgs drum

 

Usage:Used in the generation of acetylene gas for welding, and as a reagent

 


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Q:Chemistry help! physical and chemical properties of salt and sugar!?
I believe it's Physical, most of the times such changes are physical, melting point, sublimation, evaporation, etc.
Q:What are the nutritional requirements for bacterial growth?
For carbon: pathogens are mainly obtained from sugars.
Q:Relation between salt concentration and amount of drops of saltwater on a penny?
The source below says inorganic salts increase surface tension. In the present case increasing the concentration of salt (and so increasing the surface tension) would result in an increase in the number of drops being held on the surface of the penny.
Q:What are the important physiological functions of inorganic salts in cells
Maintain intracellular acid-base balance, regulate osmotic pressure, maintain cell morphology and function. Such as: blood calcium and potassium ions.
Q:What are the physiological functions of inorganic salts
Maintain the life of cells and organisms
Q:What foods contain inorganic salts?
Kelp, jellyfish, seaweed, moss; bones, soy products, lean meat, animal liver, brown rice
Q:TRUE OR FALSE: the addition of salts to water will always increase the surface tension of water. explain.?
False. Although inorganic salts will increase surface tension of the water by increasing the attractive forces between water molecules on the surface, organic salts will typically (always?) decrease the surface tension.
Q:What inorganic salts are needed for seeds?
Phosphate, nitrogen, magnesium, calcium, iron, copper, and boric acid
Q:Magnesium can constitute chlorophyll, which reflects the nature of inorganic salts
(2) to participate in and maintain the metabolic activity of the organism.
Q:Now need to determine the freezing point of inorganic salt solution, what kind of freezing point instrument is more accurate?
With antifreeze.

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