A death certificate is a confidential document, therefore, only the immediate family â the spouse, the biological or adoptive parents, the biological or adoptive grandparents, the legal guardian, the siblings, or the adult children of the deceased can request and obtain a death certificate that shows the cause of death.
BHA and BHT. Butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) are used as a food preservative, as well as to preserve fats and oils in cosmetics and pharmaceuticals. BHA is commonly found in chewing gum, butter, cereals, snack foods and beer.
Antioxidant[edit] BHT is also used as an antioxidant in products such as cosmetics, pharmaceuticals, rubber, electrical transformer oil (at 0.35%), and embalming fluid. In the petroleum industry, where BHT is known as the fuel additive AO-29, it is used in hydraulic fluids, turbine and gear oils, and jet fuels. BHT is also used to prevent peroxide formation in diethyl ether and other laboratory chemicals.