Liquid nitrogen (LN2) is nitrogen in a liquid state at low temperature. Liquid nitrogen has a boiling point of about −196 °C (−321 °F; 77 K). It is produced industrially by fractional distillation of liquid air.

2022年7月18日 · Sometimes liquid nitrogen is denoted as LN 2, 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. At normal pressure, liquid nitrogen boils at 77 K (−195.8° C or −320.4° F).

In mathematics, the natural logarithm of 2 is the unique real number argument such that the exponential function equals two. It appears frequently in various formulas and is also given by the alternating harmonic series. The decimal value of the natural logarithm of 2 (sequence A002162 in the OEIS) truncated at 30 decimal places is given by:

Nitrogen, Refrigerated Liquid LIN, Cryogenic Liquid Nitrogen, Liquid Nitrogen, Liquid Nitrogen NF, Liquid Nitrogen FG Liquefied gas SAFETY DATA SHEET

The natural logarithm of 2 is a transcendental quantity that arises often in decay problems, especially when half-lives are being converted to decay constants. ln2 has numerical value ln2=0.69314718055994530941... (1) (OEIS A002162). The irrationality measure of ln2 is known to be less than 3.8913998 (Rukhadze 1987, Hata 1990).

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Natural Logarithm of 2 (also known as ln2) is the decimal value of natural log of 2. The ln2 is approximately 0.69314718056. To find ln2 of any number, just multiply the number with 0.69314718056.

2020年2月14日 · Liquid nitrogen (often written as LN2) is a liquid form of nitrogen formed at low temperatures. The boiling point of nitrogen is -196°C. Under normal atmospheric pressure, liquid nitrogen will form if it is below this temperature.

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