产品说明
一般描述
Formaldehyde (HCOH) is one of the most familiar and effective fixatives. The fixation of the histological specimen material of human or animal origin is commonly performed in a 4% or 10% Formaldehyde solution. Chemically, the 4 % Formaldehyde solution equals a 10 % Formalin solution.
分析说明
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 %
产品性质
等级 | ACS reagent |
质量水平 | 400 |
agency | reag. Ph. Eur. |
测定 | 36.5-38.0% (iodometric, acidimetric) |
形式 | liquid |
自燃温度 | 300 ℃ (Formaldehyde) |
expl. lim. | 7-73 % (v/v) Formaldehyde) |
pH值(酸碱度) | 2.8-4.0 (20 ℃ in H2O) |
bp | 93-96 ℃/1013 hPa |
mp | <-15 ℃ |
转变温度 | flash point 62 ℃ (Formaldehyde) |
密度 | 1.09 g/cm3 at 20 ℃ |
application(s) | diagnostic assay manufacturing hematology histology |
储存温度 | 15-25℃ |
安全信息
象形图 | |
警示用语: | Danger |
危险声明 | H301 + H311 - H314 - H317 - H330 - H335 - H341 - H350 - H370 |
预防措施声明 | P202 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
危险分类 | 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 |
靶器官 | Respiratory system |
储存分类代码 | 6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials |
WGK | WGK 3 |
闪点(F) | 143.6 °F |
闪点(C) | 62 ℃ |
Sigma-Aldrich