Published July 1989
| Version v1
Journal article
Irreversible radiation-chemical transformations of protoporphyrin in reactions with OH radical and H atom in 2 N H2SO4
Description
A study was made on γ-radiolysis of 5 x 10-5 - 5 x 10-4 mol/dm3 protoporphyrin in 2NH2SO4 saturated with air and argon. Dose range 10-100 Gy, dose rate 0.17 Gy/s. It was revealed that the process proceeded according to the chain mechanism. Protoporphyrin interaction with OH radicals leads to formation of products with similar molecular mass; interaction with H atoms - to formation of products with higher molecular mass as compared to protoporphyrin. General schemes of the chain processes iNitiated by OH radical and H atom taking account of inhibiting effect of formed radiolysis products are suggested
Additional details
Additional titles
- Original title (Russian)
- Необратимые радиационно-химические превращения протопорфирина в реакциях с радикалом OH и атомом Х в 2 н. Х
Publishing Information
- Journal Title
- Khimiya Vysokikh Ehnergij
- Journal Volume
- 23
- Journal Issue
- 4
- Series
- Khim. Vys. Ehnerg.
- Journal Page Range
- 305-311
- ISSN
- 0023-1193
- CODEN
- KHVKA
INIS
- Country of Publication
- Russian Federation
- Country of Input or Organization
- USSR
- INIS RN
- 21030744
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Descriptors DEI
- AIR; AQUEOUS SOLUTIONS; ARGON; ATOMS; CHEMICAL REACTION KINETICS; DOSE RATES; G VALUE; GAMMA RADIATION; HYDROGEN; HYDROXYL RADICALS; MOLECULAR WEIGHT; PROTOPORPHYRINS; QUANTITY RATIO; RADIATION DOSES; RADIOLYSIS; SULFURIC ACID
- Descriptors DEC
- CARBOXYLIC ACIDS; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; DECOMPOSITION; DISPERSIONS; ELECTROMAGNETIC RADIATION; ELEMENTS; FLUIDS; GASES; HETEROCYCLIC ACIDS; HETEROCYCLIC COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; IONIZING RADIATIONS; KINETICS; MIXTURES; NONMETALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PIGMENTS; PORPHYRINS; RADIATION EFFECTS; RADIATIONS; RADICALS; RARE GASES; REACTION KINETICS; SOLUTIONS; SULFUR COMPOUNDS