Third party Professional Identification Organization for acetone detection of IC authenticity and original chip

Date：2022-01-04 14:00:39Views：1803

Acetone, also known as dimethyl ketone, is the simplest saturated ketone. It is a colorless transparent liquid with a special pungent smell. It is easily soluble in water and organic solvents such as methanol, chloroform, ethanol, ether and pyridine. It is flammable, volatile and has active chemical properties. At present, the industrial production of acetone in the world is mainly based on cumene method. Acetone is mainly used as solvent in industry in industries such as explosives, rubber, tanning, plastics, grease, fiber and painting. It can also be used as synthetic ketene, acetic anhydride, iodoform Polyisoprene rubber, methacrylic acid, methyl ester, chloroform, epoxy resin and other important raw materials.

Preparation tools:

1. A bottle of 100% pure acetone can be bought in any shop that sells nail polish. Do not use any nail polish containing pigment or fragrance to remove water.

2. Several clean white cotton swabs

Note: only use acetone in a well ventilated place, and carefully read all safety and warning labels on the bottle before use.

Take the sample first. The packaging of the sample parts, such as tray, pipe or tape carrier, shall be removed from any place. After taking out, it shall be re sealed. After replacing the parts, the tape shall be bonded with anti-static adhesive. After taking out the sample chip, dip it into the acetone bottle with a cotton swab (hard head is best), and then firmly wipe the top of the chip with a cotton swab. If the sample chip is a fake, you can notice that a gray to black substance should begin to fall off. After wiping the chip with a cotton swab for 15 - 20 seconds, you may need to dip it with a new cotton swab, and then continue to wipe the chip. The most likely thing left after wiping is a stroke like a grinding mark, or, more rarely, a previous chip mark. It should be noted that with the cunning change of counterfeiters, the blackening used by counterfeiters has become an increased resistance to acetone. Although only a small part of the black was removed by rubbing with acetone, the sand marks were clearly visible.

Acetone is a representative compound of aliphatic ketones, which has the typical reaction of ketones. Acetone is relatively stable to oxidant and will not be oxidized by nitric acid at room temperature. Acetic acid, carbon dioxide and water are produced when acidic potassium permanganate strong oxidant is used as oxidant. Bimolecular condensation occurs in the presence of alkali to produce diacetone alcohol. In the presence of acid or base, it condenses with aldehyde or ketone to produce ketone alcohol, unsaturated ketone and resin like substances. Acetone is an important raw material for organic synthesis. It is used in the production of epoxy resin, polycarbonate, plexiglass, medicine, pesticide, etc. it is a good solvent and is used in coatings, steel cylinder acetylene, binder, etc. It is also used as diluent, cleaning agent and extractant. It is also an important raw material for the manufacture of acetic anhydride, diacetone alcohol, chloroform, iodoform, epoxy resin, polyisoprene rubber, methyl methacrylate, etc. it is used as a solvent in smokeless gunpowder, celluloid, acetate fiber, painting and other industries, and as an extractant in grease and other industries. It is used to prepare important organic chemical raw materials such as plexiglass monomer, diacetone alcohol, hexanediol, bisphenol A, methyl isobutyl methanol, methyl isobutyl ketone, folone, isophorone, folone, chloroform and iodoform.