Preliminary to the accomplishment of a chemical cleaning the following have to be well specified:
The inspection and the study of the plant and design of the requirements and the scope of work.
The design of application method as re-circulation, spraying, of-line, on-line, etc
The selection of proper, safe and sufficient chemical cleaning solvents.
The selection of applications temperature and required time in hours.
The selection of applications flow and volume rate, pumps, flexible hoses, etc.
The design of necessary safety measures.
The selection of the more practical effective time of work as nighttime, weekend time, shutdown period, etc.
The selection and specification of completion and acceptance criteria.
The selection and the specification of control and monitor checks as chemical analysis tests, during the cleaning procedure.
The selection, the design and the managements of chemical cleaning wastes.
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NAMES OF COMMON CHEMICAL CLEANING AGENTS
HYDROCHLORIC ACID 33%
SULPHAMIC ACID
PHOSPHORIC ACID
NITRIC ACID
CITRIC ACID, MONOHYDRATE
General
Synonyms: citric acid hydrate, citric acid, 2-hydroxy-1,2,3-propanetricarboxylic acid monohydrate
Molecular formula: C6H8O7
AMMONIUM BI-FLUORIDE
Synonyms: ammonium difluoride, ammonium hydrogen fluoride, ammonium acid fluoride, acid ammonium fluoride
Molecular formula: NH4F HF
CAS No: 1341-49-7
SODIUM CARBONATE
CAUSTIC SODA
TRISODIUM PHOSPHATE
SODIUM METASILICATE, PENTAHYDRATE
TRADE NAME: Sodium Metasilicate Pentahydrate
OTHER NAMES : Disodium Trioxosilicate
U.N NO: 8
Uses: Used in the formulation of household and industrial detergents; metal treatment; as a binder in the preparation of refractory bricks, castings etc.; Ceramic Industry - as a component to increase the fluidity of the water slurry of clay
HYDROGEN PEROXIDE
Synonyms: ammonium difluoride, ammonium hydrogen fluoride, ammonium acid fluoride, acid ammonium fluoride
Molecular formula: NH4F HF
CAS No: 1341-49-7
AMMONIUM HYDROXIDE
Synonyms: ammonia solution (typically contains between 12% and 44% ammonia before dilution), dilute ammonia, concentrated ammonia.
Molecular formula: NH4OH
CAS No: 1336-21-6
EC No: 215-647-6
ENPYLAN NP6
ENPYLAN NP9
WHITE SPIRIT (LOW FLASH POINT NAPHTHA)
SHELSOL H (HIGH FLASH POINT NAPHTHA)
SHELSOL R
PERCHLORETHYLENE
TRICHLOROETHANE
MSDS OF COMMON CHEMICAL CLEANING AGENTS, OIL SPILL RESPONSE AND EMERBENCY CLEAN UP PROCEDURES ARE FOUNT IN OTHER SITE pages. |