Look at the material, pick the function, buy the refrigerator, learn

There are many kinds of refrigerator products in the appliance store. Many consumers pay attention to the price, volume, shape and style when choosing. In fact, there is still a big quality gap between the refrigerator and the refrigerator. So how can I choose a refrigerator that is suitable for my own home and cheap? Let's start with the following four aspects.

Watch out the material

When purchasing a refrigerator, the first thing to look at is the overall appearance. Master Zhang, who has been working in the refrigerator for many years, said that the panel of the refrigerator has stainless steel wire drawing, high-strength glass, ordinary metal plate and other materials. Different materials are used, and the manufacturing cost is also very different. Among them, stainless steel wire drawing and high-strength glass are mostly used in high-end refrigerator manufacturing, while ordinary metal painting panels are mainly used in low-end refrigerator manufacturing.

In addition, there are also differences in the door handles of refrigerators, such as stainless steel and aluminum alloy, which are completely different in price. Even if the materials are the same, the process is different, and the price is different.

The interior is clear and simple

Many consumers think that the interior of the refrigerator is just a few partitions, and it feels good to put things and be firm. Master Zhang reminded that the partition of the refrigerator can also be different.

There are differences in manufacturing costs in the interior of the refrigerator. Whether the partition is glass or plastic, more or less, the internal lighting is an ordinary light bulb or an LED light, etc., can affect the different use feelings of the refrigerator. The glass partition is well cleaned, but the price is expensive; the shelf and drawer are less, the manufacturing cost is reduced, but when used, it is not conducive to the consumer to store food in the partition, easy to smell; the interior lighting of the refrigerator, if using LED lights The utility model has the advantages of long service life, high brightness and low power consumption, but the manufacturing cost is high.

How much does it take to see the function?

The function of the refrigerator is not only refrigeration, but also the functions of preservation and energy saving while cooling, and these functions also determine the manufacturing cost and sales price of the refrigerator.

Master Zhang introduced this: "The thickness of the foam layer of the refrigerator determines the power consumption of the refrigerator, the thickness of the foam layer is thick, the natural heat preservation capacity is strong, and the power consumption is small; the thickness of the foam layer is different, and the amount of materials used. Also, the manufacturing cost is different. At the same time, the refrigerator has the same capacity, but the length of the power cord is different, but few people will notice this when picking the refrigerator."

Compressor clears the brand

As we all know, the compressor is the heart of the refrigerator. Compressor brands, quality, and prices will vary greatly. Products that look like the same price, in fact, "heart" have completely different quality and cost.

For products of the same price, the quality is not necessarily the same. Master Zhang reminded: "Some merchants have repeatedly lowered the selling price in order to attract consumers' attention, but the reduction in sales price may be at the expense of the quality and function of the products. Some merchants directly propose a price to order from the manufacturer. As long as the manufacturer guarantees that the price does not increase, the quality and function are not considered by them." Zhengzhou Evening News Li Dongsheng

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L-Glutamine Basic Information
Description References
Product Name: l-glutamine
CAS: 56-85-9
MF: C5H10N2O3
MW: 146.14
EINECS: 200-292-1
Mol File: 56-85-9.mol

L-Glutamine Structure

L-glutamine

L-Glutamine Chemical Properties
Melting point 185 °C (dec.)(lit.)
alpha 32.25 º (c=10, 2 N HCl)
Boiling point 265.74°C (rough estimate)
density 1.47 g/cm3 (20℃)
refractive index 6.8 ° (C=4, H2O)
Fp 185°C
storage temp. −20°C
solubility H2O: 25 mg/mL
pka 2.17(at 25℃)
form solution
color White
PH 5.0-6.0 (25℃, 0.1M in H2O)
Water Solubility Soluble in water, dimethyl sulfoxide and ethanol. Insoluble in methanol, ether, benzene, acetone, ethyl acetate and chloroform.
Decomposition 185 ºC

L-Glutamine CAS No.56-85-9

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ShanDong YingLang Chemical Co.,LTD , https://www.sdylhgtrade.com