• Methylene Chloride System 1
Methylene Chloride

Methylene Chloride

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
10000MT m.t./month

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Methylene Chloride

Quality Standard:Q/321200GDH011-2011

Item
Excellent Grade
First Grade
Appearance
Clear, no suspended matter, no mechanical impurity
Chroma(Pt-Co) ≤
10
10
Acidity (as HCL) (%) ≤
0.0004
0.0004
Moisture   (%) ≤
0.010
0.020
evaporated residue    (%) ≤
0.0005
0.0005
Chloride   (%) ≤
0.0005
0.0005
Purity   (%) ≥
99.95
99.90

MF:CH2CL2 UN NO.:1593

Specification:

Color(APHA),Pt-Co:10

Acidity(HCl),%≤0.0004

Moisture,%≤0.006

Purity,%≥99.99

Residue after evaporation%,≤0.0015


It's widely used as pharmaceutical intermediates, polyurethane foaming agent / blowing agent to produce flexible PU foam, metal degreaser, oil dewaxing, mold discharging agent and decaffeination agent, and also in adhesive, agrochemical and film industry, etc.  


Q:Does the inorganic salt affect the gpc molecular weight results?
GPC determination of molecular weight through the column when the molecular size of the molecular peak, the molecular weight of the early comparison of the peak, that is relatively large molecules in the GPC pillars can not pass, pass the molecules were detected out of the peak, This molecular weight is not absolute, since the GPC determination is actually the size of the molecule rather than the size of the molecule, and of course it is also possible to approximate the molecular weight of the molecular weight of the molecule. Large; exactly how their relationship, with GPC can not be determined, only through the standard liquid molecular weight to compare, this result is relative, not absolute.
Q:Is urea an inorganic salt?
Is not organic matter ah inorganic salts are present in the body and food minerals in the mineral, composed of organic matter and inorganic synthesis of the human body has been found to have more than 20 kinds of essential inorganic salts, about 4 to 5% of body weight. More (> 5g) for calcium, phosphorus, potassium, sodium, chlorine, magnesium, sulfur seven; daily dietary requirements are more than 100mg, known as constant elements. Other low content, with the modern analysis of technological progress Iron, copper, zinc, manganese, cobalt, molybdenum, selenium, chromium, nickel, silicon, fluorine, vanadium and other elements were found by atomic absorption spectroscopy, neutron activation, plasma emission spectroscopy and other trace analysis methods. But also the human body is necessary, the daily dietary requirements for the amount of μg ~ mg called trace elements.
Q:What inorganic salts and trace elements are there in rice?
Pantothenic acid (0.60 mg) Carbohydrate (76.80 grams) Folic acid (3.80 micrograms) Dietary fiber (0.60 grams) Biotin (220.00 micrograms) Thiamine (0.33 mg)
Q:How much of the body's inorganic salts account for the weight of the body?
The inorganic salts in the human body account for about 5%
Q:Does the lack of inorganic salts cause convulsions?
The lack of important substances in the salt body is indeed the use of salt to protect the health of important substances than the calcium and phosphorus main body bone calcium blood coagulation muscle contraction and nerve cell regulation very important phosphorus calcium with the same function of food are preserved phosphorus body lack of calcium muscle spasms Can be rash dyspnea gastrointestinal paralysis and other body no phosphorus calcium calcium phosphate can be used to make bone calcium and phosphorus with a reasonable reason to play its role in the use of salt my body's non-essential body about 50 grams of salt according to 0 --- 2 5 grams To follow the excreta outside the body need to be added or otherwise the body of the production capacity of the body is extremely lack of salt can be fainting disease to speed up or even cause muscle weakness in the iron content and its role is not important in vivo iron deficiency anemia and other iron deficiency
Q:Why vegetables and fruits contain rich inorganic salts
Because they are plants! From the biological point of view, they are the nature of the organic matter into inorganic salt carrier
Q:After running the training is best to drink what drinks add inorganic salt
C100 ah
Q:Nutritional characteristics of carbohydrates and inorganic salts in vegetables
Vitamins: Fresh vegetables and fruits are an important source of ascorbic acid, carotene, riboflavin and folic acid
Q:Are plants absorbing water and inorganic salts only through root tip or wrong? The
This is wrong.
Q:Are the inorganic salts mineral and they are soluble in water?
Generally speaking, inorganic salts, including minerals, inorganic salts are not minerals. Some inorganic salts can be soluble in water and some can not, the vast majority of minerals do not dissolve in water, otherwise the rain on the rocks are not dissolved Is it gone?

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