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Merck

16005

Paraformaldehyde

meets analytical specification of DAC, 95.0-100.5%

Synonyme(s) :

Polyoxymethylene

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A propos de cet article

Formule linéaire :
HO(CH2O)nH
Numéro CAS:
30525-89-4
Poids moléculaire :
30.03 (as monomer)
UNSPSC Code:
12352100
PubChem Substance ID:
24849849
NACRES:
NA.22
MDL number:
MFCD00133991
Assay:
95.0-100.5%
Technique(s):
NMR: suitable
Vapor pressure:
<1.45 mmHg ( 25 °C)

Principaux documents

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vapor density

1.03 (vs air)

Quality Level

200

vapor pressure

<1.45 mmHg ( 25 °C)

assay

95.0-100.5%

form

powder

autoignition temp.

572 °F

quality

meets analytical specification of DAC

expl. lim.

73 %

technique(s)

NMR: suitable

impurities

residual solvents, in accordance, <0.1% sulfated ash, 10 ppm heavy metals (as Pb)

mp

120-170 °C (lit.)

solubility

water: insoluble

density

0.88 g/mL at 25 °C (lit.)

suitability

in accordance for appearance of solution, suitable for acidity or alkalinity (complying)

storage temp.

2-8°C

SMILES string

[O-]#[C+H2]

InChI

1S/CH2O/c1-2/h1H2

InChI key

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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General description

Buffered picric acid-paraformaldehyde fixative is suitable for use in electron microscopy and light-microscopic immunocytochemistry.

Application

Paraformaldehyde was used in the preparation of azomethine ylide, required for the synthesis of amine-modifying single-walled carbon nanotubes. It was also used in the preparation of α-methylenechromanes, α-methylenequinoline and ortho-quinone methides.

signalword

Danger

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

Classe de stockage

4.1B - Flammable solid hazardous materials

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificats d'analyse (COA)

Lot/Batch Number
SDBB7221
SDBB2181
STBL3782
STBL4527
STBL2820

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

J Justin Mulvey et al.
International journal of nanomedicine, 9, 4245-4255 (2014-09-18)
We aimed to create a more robust and more accessible standard for amine-modifying single-walled carbon nanotubes (SWCNTs). A 1,3-cycloaddition was developed using an azomethine ylide, generated by reacting paraformaldehyde and a side-chain-Boc (tert-Butyloxycarbonyl)-protected, lysine-derived alpha-amino acid, H-Lys(Boc)-OH, with purified SWCNT
P Somogyi et al.
Neuroscience, 7(7), 1779-1783 (1982-07-01)
The buffered picric acid paraformaldehyde fixative originally recommended for electronmicroscopy and which has since been used occasionally for light-microscopic immunocytochemistry, has been supplemented with glutaraldehyde and used as primary fixative for the perfusion of rat brains. In the basal ganglia
José C J M D S Menezes et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 20(42), 13644-13655 (2014-08-30)
In view of increasing demands for efficient photosensitizers for photodynamic therapy (PDT), we herein report the synthesis and photophysical characterizations of new chlorin e6 trimethyl ester and protoporphyrin IX dimethyl ester dyads as free bases and Zn(II) complexes. The synthesis of these
Lingling Chen et al.
Scientific reports, 7(1), 12218-12218 (2017-09-25)
Optical clearing methods can facilitate deep optical imaging in biological tissue by reducing light scattering and this has enabled accurate three-dimensional signal visualization and quantification of complex biological structures. Unfortunately, existing optical clearing approaches present a compromise between maximizing clearing
Ting Yao et al.
FEBS open bio, 6(7), 707-719 (2016-07-12)
Decorin (DCN) is a major member of the small leucine-rich proteoglycan (SLRP) family that is critically involved in tumorigenesis and the development of metastasis of cancers, including glioma. Overexpression of DCN was indicated to suppress glioma cell growth. However, the
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