grade
ACS reagent
Quality Segment
agency
reag. Ph. Eur.
vapor density
1.03 (vs air)
vapor pressure
52 mmHg ( 37 °C)
form
liquid
autoignition temp.
300 °C (Formaldehyde), 572 °F
expl. lim.
7-73 % (v/v) Formaldehyde()
concentration
36.5-38.0% (iodometric, acidimetric)
dilution
(for analytical testing)
pH
2.8-4.0 (20 °C in H2O)
bp
93-96 °C/1013 hPa
mp
<-15 °C
transition temp
flash point 62 °C (Formaldehyde)
density
1.09 g/cm3 at 20 °C, 1.09 g/mL at 25 °C (lit.)
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
15-25°C
SMILES string
[H]C([H])=O
InChI
1S/CH2O/c1-2/h1H2
InChI key
WSFSSNUMVMOOMR-UHFFFAOYSA-N
General description
甲醛(HCOH)是最熟悉和有效的固定剂之一。人或动物来源的组织学标本材料的固定通常在4%或10%甲醛溶液中进行。化学上,4%甲醛溶液等于10%福尔马林溶液。
Analysis Note
含量(酸度):36.5-38.0%
含量(碘量法):36.5 - 38.0 %
同一性:通过测试
颜色: ≤ 10 色度
溶液外观:通过测试
游离酸(HCOOH形式): ≤ 0.025%
密度(20 °C):1.080-1.090 g/ml
氯化物(Cl): ≤ 0.0001 %
硫酸盐(SO₄): ≤ 0.002 %
重金属(以铅计): ≤ 0.0002 %
Fe(铁): ≤ 0.0001 %
甲醇(GC):9.0-11.0%
硫酸灰: ≤ 0.002 %
含量(碘量法):36.5 - 38.0 %
同一性:通过测试
颜色: ≤ 10 色度
溶液外观:通过测试
游离酸(HCOOH形式): ≤ 0.025%
密度(20 °C):1.080-1.090 g/ml
氯化物(Cl): ≤ 0.0001 %
硫酸盐(SO₄): ≤ 0.002 %
重金属(以铅计): ≤ 0.0002 %
Fe(铁): ≤ 0.0001 %
甲醇(GC):9.0-11.0%
硫酸灰: ≤ 0.002 %
signalword
Danger
Hazard Classifications
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
target_organs
Eyes,Central nervous system, Respiratory system
存储类别
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
143.6 °F - closed cup
flash_point_c
62 °C - closed cup


