16005
Paraformaldehyde
meets analytical specification of DAC, 95.0-100.5%
동의어(들):
Polyoxymethylene
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
HO(CH2O)nH
CAS 번호:
Molecular Weight:
30.03 (as monomer)
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
MDL number:
Assay:
95.0-100.5%
Technique(s):
NMR: suitable
Vapor pressure:
<1.45 mmHg ( 25 °C)
vapor density
1.03 (vs air)
Quality Level
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
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
저장 등급
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
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
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
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