P6148

Paraformaldehyde

reagent grade, crystalline

• Synonym(s): Polyoxymethylene
• Linear Formula: HO(CH₂O)_nH
• CAS Number: 30525-89-4
• Molecular Weight: 30.03 (as monomer)
• MDL number: MFCD00133991
• PubChem Substance ID: 24898648
• NACRES: NA.25

Properties

• grade: reagent grade
• Quality Level: 200
• vapor density: 1.03 (vs air)
• vapor pressure: <1.45 mmHg ( 25 °C)
• form: crystalline
• autoignition temp.: 572 °F
• expl. lim.: 73 %
• mp: 120-170 °C (lit.)
• density: 0.88 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• InChI: 1S/CH2O/c1-2/h1H2
• InChI key: WSFSSNUMVMOOMR-UHFFFAOYSA-N

Description

General description

Paraformaldehyde is a cross-linking fixative. It is changed to formaldehyde by heating and by adding small amount of sodium hydroxide.

Application

Paraformaldehyde is recommended for use in the preparation of formalin fixatives for tissues or cells when the samples are to be used in florescence studies.
Paraformaldehyde has been used for fixing of cells and tissue sections during staining procedures.

Safety Information

• Pictograms: GHS02,GHS05,GHS07,GHS08
• Signal Word: Danger
• Hazard Statements: H228 - H302 + H332 - H315 - H317 - H318 - H335 - H341 - H350
• Precautionary Statements: P210 - P280 - P301 + P312 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
• 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
• Target Organs: Respiratory system
• Storage Class Code: 4.1B - Flammable solid hazardous materials
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves