Sigma-Aldrich
Paraformaldehyde Powder 95% 3 kg
- Part Number:
- MIL-158127-3KG
- Lead Time:
- 7-14 days
- Minimum Purchase:
- 1 unit
- Shipping:
- FREE SHIPPING on most orders over $50*
- Quantity:
- each
- Size:
- 3 kg
- Style:
- chemical
- DOT Rated:
- HazMat Transport Fee Required
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Description
Paraformaldehyde Powder 95% 3 Kg
Synonym: Polyoxymethylene
- CAS Number 30525-89-4
- Linear Formula HO(CH2O)nH
- Molecular Weight 30.03 (as monomer)
- MDL number MFCD00133991
- PubChem Substance ID 24849719
- NACRES NA.21
General description
Paraformaldehyde is also referred as polyoxymethylene. It participates as an external CO source in the synthesis of aromatic aldehydes and esters.
Paraformaldehyde is an ideal fixative used in histology. It is generally preferred over other fixative as the others result in more silver grains on the tissues. Paraformaldehyde, appropriately combined with DMSO (dimethyl sulfoxide) ensures its uniform distribution over the tissue section. Paraformaldehyde is also used in recognizing and stabilizing the expression of intracellular antigen.
Application
Paraformaldehyde has been used as a fixative in histological analysis. It has also been used in mitotic catastrophe assay.
| Vapor Density | 1.03 (vs air) |
| Vapor Pressure | <1.45 mmHg (25°C) |
| Assay | 95% |
| Form | powder |
| Autoignition Temperature | 572°F |
| Expl. Lim. | 73 % |
| mp | 120-170°C (lit.) |
| density | 0.88 g/mL at 25°C (lit.) |
| storage temp. | 2-8°C |
Safety Information
GHS02,GHS05,GHS07,GHS08
Signal word Danger
Hazard statements H228-H302 + H332-H315-H317-H318-H335-H351
Precautionary statements P210-P261-P280-P301 + P312 + P330-P305 + P351 + P338 + P310-P370 + P378
Personal Protective Equipment Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
RIDADR UN 2213 4.1 / PGIII
WGK Germany 2
RTECS RV0540000
Flash Point(F) 158°F
Flash Point(C) 70°C
Documents
Warnings
Note: These chemicals are for research & laboratory use only. Your order will not be processed if you do not work for, and ship to, a registered laboratory or research facility. Not for topical applications. An official Declaration of Use form may be required.
Most chemicals cannot be expedited.
This item has a Haz-Mat shipping fee built into the price. Fee is applicable only to the first item purchased. Additional HazMat items will be discounted automatically in the shopping cart. HazMat items always require special DOT handling and in rare cases may incur additional fees not levied prior to checkout. Request a quote for the most accurate pricing.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. Prop 65 Warning
Please note: This product is not returnable.