Merck
All Photos(1)

1.04003

Sigma-Aldrich

Solução de formaldeído com aprox. 37%

GR for analysis stabilized with about 10% methanol ACS,Reag. Ph Eur

All Photos(1)
Synonym(s):
Solução de formalina, solução de metanal, solução de metilaldeído

grau

ACS reagent

Nível de qualidade

400

Agency

reag. Ph. Eur.

forma

liquid

temperatura de autoignição

300 °C (Formaldehyde)

Lim. expl.

7-73 % (v/v) Formaldehyde)

concentração

36.5-38.0% (iodometric, acidimetric)

pH

2.8-4.0 (20 °C in H2O)

pb

93-96 °C/1013 hPa

pf

<-15 °C

temperatura de transição

flash point 62 °C (Formaldehyde)

densidade

1.09 g/cm3 at 20 °C

application(s)

diagnostic assay manufacturing
hematology
histology

temperatura de armazenamento

15-25°C

Related Categories

Descrição geral

Formaldeído (HCOH) é um dos fixadores mais conhecidos e eficazes. A fixação do material de amostra histológica de origem humana ou animal é comumente realizada em uma solução de 4% ou 10% de formaldeído. Quimicamente, a solução de formaldeído a 4% é igual a uma solução de formalina a 10%.

Nota de análise

Teor (acidimétrico): 36,5%-38,0%
Teor (iodométrico): 36,5%-38,0%
Identidade: passa no teste
Cor: ≤ 10 na escala de Hazen
Aspecto da solução: passa no teste
Ácido livre (como HCOOH): ≤ 0,025%
Densidade (20 °C): 1,080-1,090 g/ml
Cloreto (Cl): ≤ 0,0001%
Sulfato (SO₄): ≤ 0,002%
Metais pesados (como Pb): ≤ 0,0002%
Fe (ferro): ≤ 0,0001%
Metanol (GC): 9,0%-11,0%
Cinza sulfatada: ≤ 0,002%

Palavra indicadora

Danger

Classificações de perigo

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 1 - STOT SE 3

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Ponto de fulgor (ºF)

143.6 °F

Ponto de fulgor (ºC)

62 °C

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