- Formalin is a
saturated solution of formaldehyde, water, and typically another agent,
most commonly methanol. In its typical form, formalin is 37%
formaldehyde by weight (40% by volume), 6-13% methanol, and the rest
water. A quick glance at any commercially available formalin product
will confirm these numbers.
- Formalin is the
aqueous form of formaldehyde produced mostly from methanol by an
oxidation process.
- The two processes
known to produce formalin from methanol--methanol excess and air excess.
The basic difference between them is the
catalyst applied. The
methanol excess process, called the silver process, employs silver as
the catalyst while the air excess process uses metallic oxides of iron
and molybdenum.
- Formalin can be
produced on a smaller scale using a whole range of other methods
including conversion from ethanol instead of the
normally-fed
methanol feedstock. Such methods are of less commercial
importance.
- Formalin is one of
the most widely and frequently used chemicals for treating fish with
fungal or ectoparasitic infections.
- Formalin is a
generic term contains a solution of 37% formaldehyde gas dissolved in
water. Solutions of formalin for use on fish should
contain 10 to
15% methanol, which inhibits formation of paraformaldehyde, a highly
toxic compound.
- Formalin is used as
a bath treatment to control external parasitic infections of fish. It is
extremely effective against most protozoans, as well as some of the
larger parasites such as monogenetic trematodes.
- Formalin is approved
by FDA for control of fungi in fish hatcheries. Concentrations of 1000
to 2000 mg/l can be applied to fish eggs for 15
minutes to aid in
control of fungus.
- Formalin is an
excellent parasiticide for use in tanks and aquaria, but its use in
ponds is discouraged because it chemically removes oxygen
from the
water and can contribute to catastrophic oxygen depletion under pond
conditions. This is avoided in tanks and aquaria by always supplying
vigorous aeration when formalin is used.
- The formalin-tween
technique was effective for ascertaining helminths, particularly Ascaris
lumbricoides, Trichuris trichiura and hookworm
eggs; however it has
less capability for protozoa detection. This method is simple,
inexpensive, less time consuming and highly sensitive
when detecting
the parasitic infection, particularly when focusing on helminth
eggs.
- Formalin is used to
store biological specimens in laboratories, even preserving human bodies
in medical profession known as embalm to prevent the tissues from
natural decomposition.
- The Centre of Indian
Consumer Protection and Research (Coinpar), a consumer rights
organisation in the city, which tested eight brands of milk available in
the market and also milk sold by cycle vendors, has reported the
presence of the chemical, formalin, in three samples.
- The U.S. Fish and
Wildlife Service has cleared the way for the lawful use of formalin in
fish culture after nine years of intensive research that proves the
compound can be used without harm to fish, consumers, or the
environment.
- Formalin is a liquid
formaldehyde solution which is heavily diluted for fish culture use.
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General
- Let us look at formalin
- Nail Hardeners
Hardeners: Formaldehyde or Formalin?
Process
- Production of
Formalin from Methanol
- Production of
Formalin
- Process Description
on Formalin Production
- Production of
Formalin- Energy Balances and Numerical Methods
- The Preparation of
Permanently Non-acid Formalin for Preserving Calcareous
Specimens
- Standard Proposal
For Formalin Plant
Functions
- Proteomic Analysis
of Formalin-fixed Prostate Cancer Tissue
- Effects of Different
Concentrations of Formalin on Paw Edema and Pain Behaviors in
Rats
- Pre-versus
post-formalin effects of intrathecal ketamine on spinal Fos-like
immunoreactivity in rats
- Effects of Formalin
Feeding or Administering into the Crops of White Leghorn Cockerels on
Hematological and Biochemical Parameters
- Vaccination with
Heat-killed and Formalinized Tubercle Bacilli in Experimental
Tuberculosis
- The Analgesic Effect
of Xenon on the Formalin Test in Rats
Company
Profiles
- Company in Malaysia
- Company in
India
- Company in
Mansoura
- Company
in China
- Company in Turkey
- Production plant in
Poland
Consultants
Techniques
- A Technique
for Retrieving Antigens in Formalin-fixed, Routinely Acid-decalcified,
Celloidin-embedded Human Temporal Bone Sections for
Immunohistochemistry
- Evaluation of the
Formalin Tween Concentration Technique for Parasitic
Detection
- Plastination
of Old Formalin fixed Specimens
- Detection of Human
Cytomegalovirus Gene in Formalin-Fixed Paraffin-Embedded Fetal
Tissues
Patent
- Deodorized
Formalin
- Process and device
for counteracting and deodorizing formalin gas
- Method for
Sterilization with Formalin
- Preparation and use
of Formalin-Killed Colonization-factor-antigen
- Method for recycling
formalin
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Product and
Applications
- Formalin
solution
- Kordon Formalin•3®
Treatment and Dip
- DNA Extraction from
Archival Formalin-fixed, Paraffin- embedded Tissue Sections Based on the
Antigen
- Determination of
Antimicrobial Agents in Non-Formalin Adhesives for Wallpaper
- Evaluation of Alum
Precipitated Formalin Killed Fowl Cholera Vaccines with Their
Immunologic Responses in Ducks
- Use of
Formalin-Fixed, Propidium Iodide-Stained Human Leukocytes as a Standard
for Enumerating CD41 T Lymphocytes in a Single-Platform Assay
- Formalin and its
Multiple Uses
- Use of Formalin to
Control Fish Parasites
Project
- Fluid Mechanics,
Heat Transfer, Thermodynamics Design Project- Production of
Formalin
- Production of
formalin from Methanol
- Efficacy of Formalin
as an Egg disinfectant for improving hybrid catfish
- The Elegance Coral
Project
- Establishment of the
plastination technique for the preservation of the anatomical
specimens
- Early Lung Cancer
Action Project Pathology Protocol
- Quality Assurance
Project Plan
- Formalin
Recycler at HCMC
Material Safety Data
Sheet
- 10% Neutral buffered
formalin
- Concentrated
Buffered Formalin
- Safety Fact Sheet on
Formaldehyde and Formalin
- Formaldehyde
- Formalin, 10% Solution
- Safety data for
formaldehyde, 37% solution
Market and
Report
- Formalin found in milk samples
- Formalin in Nestle
Pakistan milk
- Formalin Scare: Some
Perspectives
- Intravesical
Instillation of Dilute Formalin for the Treatment of Severe Hemorrhagic
Emphysematous Cystitis in a Diabetic Dog
- Formaldehyde -Safety
Report
- Report on Production
of Formalin
- Formalin Proved a
Safe, Effective cure for Common Fish Disease
- Formaldehyde
Sampling of FEMA Temporary-Housing Trailers
Suppliers
- Dealers of
Formalin
- Sina Chemical
Industries Co
- Suppliers of
Formalin
- Formalin
Suppliers
- Formalin Worldwide
Suppliers
- Formalin Selling
Leads
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