Are you asking what is embalming fluid like what is it used for? Or what is in it?
What is Embalming?
1. Embalming which involves the injection of embalming chemicals into the blood vessels, usually via the right common carotid artery. Blood and interstitial fluids are displaced by this injection and, along with excess arterial solution, are expelled from the right jugular vein and collectively referred to as drainage. The embalming solution is injected with a centrifugal pump and the embalmer massages the body to break up circulatory clots as to ensure the proper distribution of the embalming fluid. This process of raising vessels with injection and drainage from a solitary location is known as a single-point injection. In cases of poor circulation of the arterial solution additional injection points (commonly the axillary, brachial or femoral arteries, with the ulnar, radial and tibial vessels if necessary) are used. The corresponding veins are commonly also raised and utilized for the purpose of drainage. Cases where more than one vessel is raised are referred to as multiple-point injection, with a reference to the number of vessels raised (i.e. a six-point injection or six-pointer). As a general rule, the more points needing to be raised, the greater the difficulty of the case. An injection utilizing both the left and right carotids is specifically referred to as a restricted cervical injection (RCI), while draining from a different site to injection (i.e. injecting arterial fluid into the right common carotid artery and draining from the right femoral vein) is referred to as a split (or sometimes cut) injection.
A typical embalming takes several hours to complete. An embalming case that requires more attention or has unexpected complications could take substantially longer. The repair of an autopsy case or the restoration of a long-bone donor are two such examples.
Embalming is meant to temporarily preserve the body of a deceased person. Regardless of whether embalming is performed, the type of burial or entombment, and the materials used – such as wood or metal caskets and vaults – the body of the deceased will eventually decompose. Modern embalming is done to delay decomposition so that funeral services may take place or for the purpose of shipping the remains to a distant place for disposition.
Chemicals and additives
Potential ingredients in an arterial solution include:
Preservative (Arterial) Chemical. These are commonly a percentage (normally 18%-35%) based mixture of formaldehyde, glutaraldehyde or in some cases phenol which are then diluted to gain the final index of the arterial solution. Methanol is used to hold the formaldehyde in solution. Formalin refers specifically to 37% aqueous formaldehyde and is not commonly used in funeral embalming but rather in the preservation of anatomical specimens.
Water Conditioner. These are designed to balance the "hardness" of water (the presence of other trace chemicals that change the water's pH or neutrality) and to help reduce the deceased's acidity, a by-product of decomposition, as formaldehyde works best in an alkaline environment. Additionally, water conditioners may be used to help inactivate chemotherapy drugs and antibiotics, which may bind to and render ineffectual the preservative chemical.
Cell Conditioner. These chemicals act to prepare cells for absorption of arterial fluid and help break up clots in the bloodstream.
Dyes. Active dyes are used to restore someone's natural colouration and counterstain against conditions such as jaundice as well as to indicate distribution of arterial fluid. Inactive dyes are used by the manufacturer of the arterial fluid to give a pleasant color to the fluid in the bottle but do nothing for the appearance of the embalmed body.
Humectants. These are added to dehydrated and emaciated bodies to help restore tissue to a more natural and hydrated appearance.
Anti-Edemic Chemicals. The opposite of humectants, these are designed to draw excessive fluid (edema) from a body.
Additional Disinfectants. For certain cases, such as tissue gas, specialist chemicals Triton-28 arterially injected,and topicals such as Dis-Spray or SaniSol 5 can be added to an arterial solution.
Water. Most arterial solutions are a mix of some of the preceding chemicals with tepid water. Cases done without the addition of water are referred to as "waterless." Waterless embalming is very effective and not often considered too expensive for everyday cases.
Cavity Fluid. This is a generally a very high-index formaldehyde or glutaraldehyde solution injected undiluted directly via the trocar incision into the body cavities to treat the viscera. In cases of tissue gas, phenol based products are often used instead.