what is the chemical formula for liquid nitrogen
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Like nitrogen gas, it consists of two nitrogen atoms sharing covalent bonds (N2). Sometimes liquid nitrogen is denoted as LN2, LN, or LIN. A United Nations Number (UN or UNID) is a four-digit code used to identify flammable and harmful chemicals. Liquid nitrogen is identified as UN number 1,977.
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Liquid nitrogen is often referred to by the abbreviation, LN2 or "LIN" or "LN" and has the UN number 1977. Liquid nitrogen is a diatomic liquid, which means that the diatomic character of the covalent N bonding in N2 gas is retained after liquefaction.
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