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Paraformaldehyde

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Paraformaldehyde Specification

Smell
Strong formaldehyde odor

Solubility
Soluble in water (slowly); decomposes in hot water; soluble in acetone and other polar solvents

Poisonous
Yes

Boiling point
Depolymerizes before boiling

Taste
Pungent (not for consumption)

Shape
Powder / Granular

Ph Level
Neutral to slightly acidic

Form
Solid

Molecular Weight
30.03 (monomer average)

Molecular Formula
(CH2O)n

Storage
Store in cool, ventilated area away from moisture and ignition sources

Other Names
Polyoxymethylene; Polyformaldehyde

Density
1.42 Gram per cubic centimeter(g/cm3)

Melting Point
120 C (approx)

HS Code
2912 29 00

Classification
Aldehyde, Polymer of Formaldehyde

Chemical Name
Paraformaldehyde

Grade
Industrial Grade

Standard
Meets industry chemical standards

Type
Chemical Compound

Usage
Industrial, Laboratory, Chemical Synthesis

Main Material
Paraformaldehyde

Application
Used in production of adhesives, disinfectants, resins, and as a fixative in laboratories

About Paraformaldehyde

Paraformaldehyde

CAS Number: 30525-89-4

Description

White prill with a strong, pungent characteristic "formaldehyde" odour.

Applications

Agricultural chemicals: Paraformaldehyde used for production of herbicide, pesticide and bactericide, such as glyphosate, acetochlor, butachlor, machete, bismerthiazol, etc.
Coatings: Paraformaldehyde used for synthesis of oil paint and top-grade for car paint.
Medicines: Paraformaldehyde used for medical and hygienic disinfection instead of the formaldehyde
Resins: Paraformaldehyde used for synthesis of glycol, trimethylolpropane, N-Methylolacrylamide, pentaerythritol, urea-formaldehyde resin, phenolic resin, melamine resin, ion exchange resin,high concentration resin etc.
Others: Paraformaldehyde used for the paper making, the production of vitamin A, spiceries, terpenoid derivatives, developers, vinyl resin softener and the substitution of formaldehyde in synthetic resin, surfactant, plastics, rubber, leather, paper making, dyes, pharmacy, farm chemicals, films, building materials as well as disinfection, fumigation and antisepsis.

Product	96% Paraformaldehyde	91% Paraformaldehyde
Appearance	Free flowing white granules/powder	Free flowing white granules/powder
Formaldehyde Content %	96 ( +/- 1)	91 ( +/- 1)
Methanol Content %	0.5 max	0.5 max
Free moisture content %	1.25 max	9.00 max
Acidity ( as Formic Acid) %	0.03 max	0.03 max
pH(10% Aqueus suspension)	4 to 8	3.5 to 6.5
Iron Content (ppm)	2.00 max	2.00 max
Ash Content (ppm)	100 max	100 max
Reactivity (minutes)	2 to 4	2 to 4
Melting point(Deg.C)	120 - 170	120 - 170
Bulk Density (kg/m3)	750 - 850	750 - 850
Grain Size (min 80%) micron	200 - 1000	200 - 1000
Odour	Pungent smell	Pungent smell

Packing: 25/ 50 Kgs HDPE Bags.

Exporting countries: - Saudi Arabia, Egypt, Iran, Israel, Bangladesh etc.

Versatile Industrial Chemical

Paraformaldehyde serves as an essential chemical in multiple industries, particularly for adhesives, resins, and disinfectants. Its controlled polymer structure makes it ideal for diverse chemical synthesis applications, ensuring consistent performance and output.

Special Storage and Handling Instructions

Due to its decomposition tendencies and toxicity, Paraformaldehyde requires storage in a cool, well-ventilated area, away from moisture and ignition sources. Proper safety measures should always be followed to prevent exposure and ensure product stability.

FAQs of Paraformaldehyde:

Q: How should paraformaldehyde be stored to maintain its stability?

A: Paraformaldehyde should be kept in a cool, ventilated location away from moisture and sources of ignition. This prevents premature decomposition and reduces the risk of formaldehyde release.

Q: What are the main industrial uses of paraformaldehyde?

A: Paraformaldehyde is widely used in the production of adhesives, resins, disinfectants, and as a laboratory fixative. Its controlled polymerization makes it suitable for chemical synthesis and manufacturing processes.

Q: When is paraformaldehyde preferred over aqueous formaldehyde solutions?

A: Paraformaldehyde is ideal when a solid source of formaldehyde is required, or for long-term storage and handling due to its reduced volatility compared to liquid formaldehyde solutions.

Q: Where can paraformaldehyde be applied in laboratory research?

A: In laboratories, paraformaldehyde is usually used as a fixative for tissue samples in histology and cytology. It aids in preserving biological specimens by cross-linking proteins.

Q: What is the process for dissolving paraformaldehyde in water?

A: Paraformaldehyde dissolves slowly in water; gentle heating and stirring can speed up dissolution, but it decomposes if heated excessively or exposed to hot water.

Q: What are the benefits of using paraformaldehyde in chemical synthesis?

A: Paraformaldehyde provides a convenient, solid source of formaldehyde for chemical syntheses, allowing for controlled addition and enhanced safety in handling compared to liquid forms.

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