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Paraformaldehyde30525-89-4(CH2O)x

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Unit Price:

$33-34/MT FOB

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CAS No.:

30525-89-4

Grade:

Pharmaceutical Grade

Content:

99.5%

Port:

上海

Brand:

OORENT

Packaging:

Vial/Bottle/Bag/Carton

Price valid (until):

2026-07-16

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Qingdao Orient Chemical Co.,LTD

Company Type:

Trader

Location:

China

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Main Products:

pharmaceutical intermediates,peptides,electronic chemicals

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Product Description
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Inquiry History

Description

Product Detail

Paraformaldehyde Basic information

Product Name:	Paraformaldehyde
Synonyms:	ACETAL RESIN;PARAFORM;PARAFORMALDEHYDE;P-FORMALDEHYDE;POLYACETAL;POLYACETAL RESIN;POLY(OXYMETHYLENE), ACETATE END-CAPPED;POLY(TRIOXANE)
CAS:	30525-89-4
MF:	(CH2O)x
MW:	30.03
EINECS:	608-494-5
Product Categories:	Aldehydes;Building Blocks;C1 to C6;Carbonyl Compounds;Chemical Synthesis;Organic Building Blocks;Polymers;Chemical;30525-89-4
Mol File:	30525-89-4.mol

Paraformaldehyde Chemical Properties

Melting point	120-170 °C (lit.)
Boiling point	107.25°C (rough estimate)
density	0.88 g/mL at 25 °C (lit.)
vapor density	1.03 (vs air)
vapor pressure	<1.45 mm Hg ( 25 °C)
refractive index	1.4540 (estimate)
Fp	158 °F
storage temp.	2-8°C
solubility	chlorophenol above 70°C: soluble
form	prilled
color	White to off-white
Odor	odor of formaldehyde
PH	5.5 (H2O, 20℃)(saturated solution)
PH Range	4 - 5.5
explosive limit	7-73%(V)
Water Solubility	sparingly soluble
Merck	14,7025
BRN	102769
Dielectric constant	4.0（Ambient）
Stability:	Stable. Incompatible with strong acids, organic acids, strong oxidizing agents, oxides, alkalies, strong bases, amines. Combustible. Dust may form an explosive mixture with air. Liberates poisonous gases on combustion.
InChI	1S/CH2O/c1-2/h1H2
InChIKey	VHWYCFISAQVCCP-UHFFFAOYSA-N
SMILES	[O-]#[C+H2]
EPA Substance Registry System	Paraformaldehyde (30525-89-4)

Safety Information

Hazard Codes	Xn,F
Risk Statements	31-43-40-36/37/38-20/22-41-37/38-42/43-20/21/22-11
Safety Statements	36-45-36/37/39-26-24-22
RIDADR	UN 2213
WGK Germany	3
RTECS	RV0540000
Autoignition Temperature	572 °F
TSCA	TSCA listed
HazardClass	4.1
PackingGroup	III
HS Code	38084090
Storage Class	4.1B - Flammable solid hazardous materials
Hazard Classifications	Acute Tox. 4 Inhalation Acute Tox. 4 Oral Carc. 1B Eye Dam. 1 Flam. Sol. 2 Muta. 2 Skin Irrit. 2 Skin Sens. 1 STOT SE 3
Hazardous Substances Data	30525-89-4(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 592 mg/kg

MSDS Information

Provider	Language
Polyoxymethylene	English
SigmaAldrich	English
ACROS	English
ALFA	English

Paraformaldehyde Usage And Synthesis

Chemical Properties	Paraformaldehyde is a polymerized form of formaldehyde (CHO) and is a stable white crystalline powder with the odor of monomeric formaldehyde. Because pure formaldehyde is unstable at ambient conditions, paraformaldehyde is used as a readily-usable form of formaldehyde at use sites. Then,formaldehyde gas is generated during heating. Paraformaldehyde is used for different applications as a source of either gaseousformaldehyde or solution formaldehyde.
Characteristics	Paraformaldehyde is the smallest solid form of liquid formaldehyde, formed by the polymerization of formaldehyde with a typical degree of polymerization of 8-100 units. As paraformaldehyde is basically a condensed form of formaldehyde, it possesses the common characteristics with a wide range of applications. It does not need to be dissolved in water in order to take part in a chemical reaction. Use of paraformaldehyde is convenient and safe. It avoids pollution arising from the disposal of the distillate obtained in the thermosetting resin production which is contaminated with organic matter. Paraformaldehyde made with very low acid content in a chemical resistant environment can prevent the formation of acidic by-products.
Uses	Paraformaldehyde is used as a fumigant, a disinfectant and in the manufacture of synthetic resins like melamine resin, phenol resin and polyacetal resin. It is also used in cell culture. It also serves as a fixative in electron microscopy. It is also used in the preparation of formalin fixatives for tissues or cells. To use the chemical as a fixative, it must be converted to the monomer formaldehyde by heating as formaldehyde is the active chemical in fixation.
Preparation	Paraformaldehyde [30525-89-4] was first produced in 1859. This polymer, at first mistakenly called dioxymethylene and trioxymethylene, consists of a mixture of poly(oxymethylene) glycols HO-(CH2O)n-H with n=8-100. The formaldehyde content varies between 90 and 99 % depending on the degree of polymerization n (the remainder is bound or free water). It is an industrially important linear polyoxymethylene. Paraformaldehyde is prepared industrially in continuously operated plants by concentrating aqueous formaldehyde solutions under vacuum conditions. At first, colloidal, waxy gels are obtained, which later become brittle. The use of a fractionating column through which gases were passed dates from about 1925. Paraformaldehyde is currently produced in several steps which are carried out at low pressure and various temperatures. Highly reactive formaldehyde is produced under vacuum conditions starting with solutions that contain 50-100 ppm of formic acid and also 1-15 ppm of metal formates where the metals have an atomic number of 23-30 (e.g., Mn, Co, and Cu). The solutions are processed in thin-layer evaporators and spray dryers.
Definition	ChEBI: Paraformaldehyde is a macromolecule composed of repeating methyleneoxy units arising from polymerisation of formaldehyde.
General Description	Paraformaldehyde appears as a white solid with a light pungent odor. A linear polymer of formaldehyde of formula HO(CH2-O)xH where x averages about 30. Soluble in water when x is less than 12; higher polymers are not immediately soluble. Slow dissolution in water proceeds by means of hydrolysis to give fragments of lower x. Flammable, although may take some effort to ignite. Flash point 158 °F. Used in fungicides, bactericides, and in the manufacture of adhesives. A hazard to the environment. Immediate steps should be taken to limit spread to the environment.
Air & Water Reactions	Flammable. Forms aqueous solution of formaldehyde, often quite slowly.
Reactivity Profile	Paraformaldehyde may react violently with strong oxidizing agents (hydrogen peroxide, performic acid, perchloric acid in the presence of aniline, potassium permanganate, nitromethane). May react with bases (sodium hydroxide, potassium hydroxide, ammonia), and with nitrogen dioxide (explosive reaction around 180°C). Reacts with hydrochloric acid to form highly toxic bis(chloromethyl) ether. Polymerization reaction with phenol may develop sudden destructive pressure [Bretherick, 5th ed., 1995, p.168]. May generate flammable and/or toxic gases in combination with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Generates toxic formaldehyde gas when heated. Can react with air to give first peroxo acids, and ultimately formic acid. These reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). Incompatible with liquid oxygen.
Health Hazard	Vapor or dust irritates eyes, mucous membranes, and skin; may cause dermatitis. Ingestion of solid or of a solution in water irritates mouth, throat, and stomach and may cause death.
Fire Hazard	Behavior in Fire: Changes to formaldehyde gas, which is highly flammable.
Safety Profile	Moderately toxic by ingestion. A severe eye and skin irritant. Mutation data reported. Flammable when exposed to heat or flame; can react with oxidzing materials. To fight fire, use alcohol foam, COr, dry chemical. Incompatible with liquid oxygen. Dangerous; when heated to decomposition it emits toxic formaldehyde gas. See also FORMALDEHYDE.
Potential Exposure	Paraformaldehyde is used in polyacetal resin manufacture; as a food additive; and as an odorless fuel.
Shipping	UN2213 Paraformaldehyde, Hazard Class: 4.1; Labels: 4.1-Flammable solid.
Incompatibilities	Paraformaldehyde dust forms an explosive mixture with air. Decomposes on contact with oxidizers, strong acids; acid fumes; and bases; with elevated temperatures, forming formaldehyde. May explode when heated. May explode on impact if peroxide contamination develops. Mixtures with hydrogen peroxide or liquid oxygen are explosives sensitive to heat, shock, or contact with lead.
Waste Disposal	Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

Paraformaldehyde Preparation Products And Raw materials

Raw materials

Formaldehyde

Preparation Products

alpha-butyl-alpha-phenyl-1H-imidazole-1-propiononitrile-->2-(HYDROXYETHYL)-6-METHYLPYRIDINE-->Dimethoxymethane-->3-Methyl-2-buten-1-ol-->9,10-Bis(chloromethyl)anthracene-->4-Hydroxy-2-butanone-->2-(Trifluoromethyl)benzyl bromide-->BIS(CHLOROMETHYL)ETHER-->Naftifine-->METHYL 5-(CHLOROMETHYL)-2-FUROATE-->2,5-Dichlorobenzoic acid-->8-CHLOROMETHYL-7-METHOXY-3-METHYL FLAVONE-->7-Hydroxy-6-methoxy-3,4-dihydroisoquinoline-->6-METHOXY-2-OXO-2H-CHROMENE-3-CARBOXYLIC ACID-->Hexachlorophene-->6-Methoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride-->Tris(hydroxymethyl)aminomethane-->5-Ethyl-2-pyridineethanol-->Fluorescent Brightener DCB-->2-(Methoxymethyl)-2-propenal-->1,3-Dioxolane-->Chloromethyl pivalate-->BUCLIZINE-->1-Chloromethyl naphthalene-->Propisochlor-->Antioxidant3114-->4,4'-Bis(chloromethyl)-1,1'-biphenyl-->4-(CHLOROMETHYL)-3,5-DIMETHYLISOXAZOLE-->Oxyfedrine-->2-HYDROXY-5-METHYLISOPHTHALALDEHYDE-->4,4'-Methylenebis(N,N-dimethylaniline)-->4,4'-Bis(bromomethyl)biphenyl-->crosslinking aent DTF-3-->Piperonyl butoxide-->3-DIMETHYLAMINOPROPIOPHENONE HYDROCHLORIDE-->Chloramben-->cationic-type polyacrylamide-->N-Benzyl-N-methylethanolamine-->4-CHLORO-2-BUTANONE-->1,3-Dioxan-5-ol

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Basic Info

Product Name:

Paraformaldehyde

Other Name:

Paraformaldehyde;Flo-Mor;Paraform;Aldacide;TransFix;Granuform;PFA;Granuform 96;WANPFA 92;Granuform M;Granuform 91;53026-80-5;104512-58-5;104512-63-2;104814-22-4;1417997-02-4

CAS No.:

30525-89-4

InChIKeys:

InChIKey=WSFSSNUMVMOOMR-UHFFFAOYSA-N

Molecular Weight:

62.068

Exact Mass:

62.036777

EC Number:

200-001-8

HScode:

2912600000

Categories:

Aldehydes

Characteristics

PSA:

17.07000

XLogP3:

-0.88

Appearance:

Solids containing varying amounts of formaldehyde, probably as paraformaldehyde (polymers of formula HO(CH2O)xH where x averages about 30). A hazard to the environment. Immediate steps should be taken to limit spread to the environment.

Density:

1.46 g/cm³

Melting Point:

164 °C (decomp)

Boiling Point:

135-136 °C @ Press: 13 Torr

Flash Point:

39.9±6.3 °C

Refractive Index:

1.364

Water Solubility:

sparingly soluble

Storage Conditions:

Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Storage class (TRGS 510): Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects. /Formaldehyde solution, 36.5-38%/

Vapor Pressure:

<1.45 mm Hg ( 25 °C)

Vapor Density:

1.04

Toxicity:

LD50 orally in Rabbit: 592 mg/kg

Flammability characteristics:

Flammable Gas

Explosive limit:

Explosive limits , vol% in air: 7.0-73.0

Odor:

Pungent, suffocating odor

PH:

pH: 2.8 to 4.0 /Formaldehyde soln/

PKA:

13.3(at 25 °C)

See More Paraformaldehyde Properties 

Hazard Identification

Classification of the substance or mixture

Flammable solids, Category 2

Acute toxicity - Category 4, Oral

Skin irritation, Category 2

Skin sensitization, Category 1

Serious eye damage, Category 1

Acute toxicity - Category 4, Inhalation

Respiratory sensitization, Category 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H228 Flammable solid H302 Harmful if swallowed H315 Causes skin irritation H317 May cause an allergic skin reaction H318 Causes serious eye damage H332 Harmful if inhaled H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
Prevention	P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P271 Use only outdoors or in a well-ventilated area. P284 [In case of inadequate ventilation] wear respiratory protection.
Response	P370+P378 In case of fire: Use ... to extinguish. P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P321 Specific treatment (see ... on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P333+P317 If skin irritation or rash occurs: Get medical help. P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P342+P316 If experiencing respiratory symptoms: Get emergency medical help immediately.
Storage	none
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO open flames. Above 71Â°C use a closed system and ventilation. Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust. Prevent build-up of electrostatic charges (e.g., by grounding). Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Cool. Dry. Keep in a well-ventilated room. Separated from strong oxidants, strong bases and strong acids.

See More Paraformaldehyde Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
pharmaceutical intermediates,peptides,electronic chemicals

Location:
Room 102, 1st Floor, East Office Building, No. 45 Pengwan Road, Qianwan Bonded Port Area, Qingdao Zone, China (Shandong) Pilot Free Trade Zone

Payment Terms:
100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2024

A reliable supplier is like insurance.

We are mainly specilized in supply of pharmaceutical intermediates, electronic chemicals，food additives, and other fine chemical products.
Integrity is the foundation, quality is life. We would like to work together with you to build a greener and brighter future.

Website: orientchem.cc
Email: scarlett@orientchem.cc
WhatsApp: +86 17753254221

Inquiry History

129 Inquiries

Country	Product	Purchase Quantity	Date Posted
Malaysia	SHD	1 TON	Oct 31, 2024
India	Paraformaldehyde (PFA)	1.00 MT	Aug 18, 2023
India	Paraformaldehyde (PFA)	15.00 MT	Feb 7, 2024
Pakistan	Para Formaldehyde	100 MT	Mar 31, 2026
India	Paraformaldehyde (PFA)	10.00 MT	Dec 15, 2023
India	Paraformaldehyde (PFA)	20.00 MT	Aug 25, 2023
India	Paraformaldehyde (PFA)	10.00 MT	Jan 31, 2024
India	Paraformaldehyde (PFA)	1.00 20' Fcl	Jul 17, 2023
India	Paraformaldehyde (PFA)	1.00 MT	Aug 21, 2023
India	Paraformaldehyde (PFA)	1.00 20' Fcl	Oct 9, 2023
India	Paraformaldehyde (PFA)	25.00 MT	Nov 8, 2023
Russia	Paraform	1 KG	Nov 1, 2024
India	Paraformaldehyde (PFA)	1.00 20' Fcl	Sep 15, 2023
India	Paraformaldehyde (PFA)	1.00 MT	Aug 24, 2023
India	Paraformaldehyde (PFA)	1.00 20' Fcl	Sep 12, 2023
India	Paraformaldehyde (PFA)	1.00 20' Fcl	Aug 25, 2023
India	Paraformaldehyde (PFA)	1.00 20' Fcl	Sep 5, 2023
Pakistan	paraformaldehyde	20 MT	Apr 13, 2026
France	Paraformaldehyde 96% Para Formaldehyde White Powder Granular Prills	200 MT	Dec 6, 2025
Bangladesh	Para Formaldehyde	200 MT	Sep 9, 2025

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Paraformaldehyde30525-89-4(CH2O)x

Product Description

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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