Seawatter

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Seawatter in the Strait o Malacca

Seawatter or saut watter is watter frae a sea or ocean. On average, seawater in the warld's oceans haes a salinity o aboot 3.5% (35 g/L, or 599 mM). This means that every kilogram (roughly ane litre bi volume) o seawatter has approximately 35 grams (1.2 oz) o dissolved sauts (predominantly sodium (Na+
) an chloride (Cl
) ions). Average density at the surface is 1.025 g/ml. Seawatter is denser nor baith fresh watter an pure watter (density 1.0 g/ml @ 4 °C (39 °F)) acause the dissolved sauts add mass wioot contributin signeeficantly tae the volume. The freezing pynt o seawatter decreases as saut concentration increases. At typical salinity it freezes at aboot −2 °C (28 °F).[1] The cauldest seawatter ever recorded (in a liquid state) wis in 2010, in a stream unner an Antarctic glacier, an measured −2.6 °C (27.3 °F).[2]

References[eedit | eedit soorce]

  1. "U.S. Office of Naval Research Ocean, Water: Temperature". 
  2. Sylte, Gudrun Urd (May 24, 2010). "Den aller kaldaste havstraumen". forskning.no (in Norwegian). Retrieved May 24, 2010.