Phosphorus-32 ( 32 P) is a radioactive isotope of phosphorus. The nucleus of phosphorus-32 contains 15 protons and 17 neutrons, one more neutron than the most common isotope of phosphorus, phosphorus-31. Phosphorus-32 only exists in small quantities on Earth as it has a short half-life of 14 days and so decays rapidly.
Why is phosphorus 32 used as a radioactive isotope?
The beta radiation emitted by the phosphorus-32 is sufficiently penetrating to be detected outside the organism or tissue which is being analysed Many radioisotopes are used as tracers in nuclear medicine, including iodine-131, phosphorus-32, and technetium-99m.
What is phosphorus-32?
Phosphorus-32 is a radioactive isotope of phosphorus. The nucleus of phosphorus-32 contains 15 protons and 17 neutrons, one more neutron than the most common isotope of phosphorus, phosphorus-31. Phosphorus-32 only exists in small quantities on Earth as it has a short half-life of 14.29 days and so decays rapidly.
How many protons and neutrons are in phosphorus 32?
The nucleus of phosphorus-32 contains 15 protons and 17 neutrons, one more neutron than the most common isotope of phosphorus, phosphorus-31. Phosphorus-32 only exists in small quantities on Earth as it has a short half-life of 14 days and so decays rapidly.
How many radioisotopes are there in 32P?
Radioisotope Information: Phosphorus - 32 Radioisotope Calcium - 45 Carbon - 14 Chromium - 51 Hydrogen - 3 Iodine - 125 Iron - 59 Manganese - 54 Phosphorus - 32 Phosphorus - 33 Sodium - 22 Sulfur - 35 PHOSPHORUS - 32 (32P)
Is phosphorus-32 a radioactive isotope?
A radioactive form of the element phosphorus. It is used in the laboratory to label DNA and proteins. It has also been used to treat a blood disorder called polycythemia vera and certain types of leukemia, but it is not commonly used anymore.
Does phosphorus have radioactive isotopes?
There are 21 isotopes of phosphorus that are recognized(1). Phosphorus-31 is naturally occuring and is stable(2). Phosphorus-26 through 30 and phosphorus-32 through 46 are artificially produced and are radioactive(2).
Is phosphorus 30 stable or unstable?
List of isotopesNuclideZDecay modeExcitation energy30P15β+31P15Stable32P15β−32 more rows
What is the difference between phosphorus-31 and phosphorus-32?
Phosphorus-32 is a radioactive isotope of phosphorus. The nucleus of phosphorus-32 contains 15 protons and 17 neutrons, one more neutron than the most common isotope of phosphorus, phosphorus-31. Phosphorus-32 only exists in small quantities on Earth as it has a short half-life of 14 days and so decays rapidly.
Is phosphorus-31 an isotope?
Phosphorus-31 is the naturally occurring isotope of phosphorus and is observable by MR at 40% the frequency of protons at the same magnetic field strength. Because there are many important high-energy phosphates present in organisms, 31P-MR has become a widely studied MR nucleus.
Is white phosphorus radioactive?
Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth....PhosphorusStandard atomic weight Ar°(P)30.973761998±0.000000005 30.974±0.001 (abridged)Abundancein the Earth's crust5.2 (silicon = 100)46 more rows
Is phosphorus-32 unstable?
The nucleus of phosphorus-32 contains 15 protons and 17 neutrons, one more neutron than the most common isotope of phosphorus, phosphorus-31. Phosphorus-32 only exists in small quantities on Earth as it has a short half-life of 14 days and so decays rapidly.
What type of isotope undergoes radioactive decay?
Carbon-14 is unstable and undergoes radioactive decay with a half-life of about 5,730 years (meaning that half of the material will be gone after 5,730 years). This decay means the amount of carbon-14 in an object serves as a clock, showing the object's age in a process called “carbon dating.”
Is phosphorus highly reactive?
White phosphorus is highly reactive, and spontaneously ignites at about 30°C in moist air.
What is p32 used for?
Chromic phosphate P 32 is used to treat cancer or related problems. It is put by catheter into the pleura (sac that contains the lungs) or into the peritoneum (sac that contains the liver, stomach, and intestines) to treat the leaking of fluid inside these areas that is caused by cancer.
How is a radioactive isotope different than other isotopes?
Radioactive (unstable) isotopes have nuclei that spontaneously decay over time to form other isotopes. For example, 14C, a radioisotope of carbon, is produced in the atmosphere by the interaction of cosmic-ray neutrons with stable 14N.
How is p32 produced?
As basic substance we use chemically pure uncleaned sulfur. In the reactor sulfur-32 cores under neutron influence cause a reaction and as a result we obtain phosphorus-32 isotope.
How to reduce P-32 dose?
Reduce doses by wearing safety glasses (for shielding the eyes), using remote handling tools such as tongs, using shielding extensively to shield storage and experimental containers and work areas, and performing thorough and frequent surveys of the work area, clothing and the body.
What is the radiation monitoring requirement?
Radiation Monitoring Requirements: Radiation monitoring badges must be worn by any person who uses open sources of P-32 in amounts of 5 mCi or more for extended operations (applies to most operations other than simple aliquoting from a stock vial).
What is the atomic mass of P-32?
More... Phosphorus-32 atom is the radioactive isotope of phosphorus with relative atomic mass 31.973907 and half-life of 14.26 days. Phosphorus P-32 is a radioactive isotope of phosphorus with beta particle-emitting radiocytotoxic activity.
Is phosphorus P 32 safe for breast feeding?
Information in this record refers to the use of phosphorus P 32 as a therapeutic agent. No information is available on the use of phosphorus P 32 during breastfeeding. Use of phosphate P 32 as a skin patch to treat skin cancers poses no risk to breastfed infants after removal of the patch from the mother's skin. PubMed.
Physical Characteristics
Phosphorus-32 ( P) is a radioactive isotope of phosphorus. The nucleus of phosphorus-32 contains 15 protons and 17 neutrons, one more neutron than the most common isotope of phosphorus, phosphorus-31. Phosphorus-32 only exists in small quantities on Earth as it has a short half-life of 14 days and so decays rapidly.
Phosphorus is found in many organic molecules and so phosphorus-32 has many applications in
Dose Rate and Shielding
Detection
Precautions
Waste Disposal