维生素B2

熔点

290 °C (dec.)(lit.)

比旋光度

-135 º (c=5, 0.05 M NaOH)

沸点

504.93°C (rough estimate)

密度

1.2112 (rough estimate)

折射率

-135 ° (C=0.5, JP Method)

闪点

9℃

储存条件

2-8°C

溶解度

Very slightly soluble in water, practically insoluble in ethanol (96 per cent). Solutions deteriorate on exposure to light, especially in the presence of alkali. It shows polymorphism (5.9).

形态

Powder

酸度系数(pKa)

1.7(at 25℃)

颜色

Yellow to orange

PH值

5.5-7.2 (0.07g/l, H2O, 20°C)

气味 (Odor)

Slight odour

酸碱指示剂变色ph值范围

6

水溶解性

0.07 g/L (20 ºC)

敏感性

Light Sensitive

Merck

14,8200

BRN

97825

BCS Class

1

稳定性

Stable, but light-sensitive. Incompatible with strong oxidizing agents, reducing agents, bases, calcium, metallic salts. May be moisture sensitive.

InChIKey

AUNGANRZJHBGPY-SCRDCRAPSA-N

LogP

-2.009 (est)

危险性符号(GHS)

GHS02,GHS06,GHS08

警示词

Danger

危险性描述

H226-H301+H311+H331-H370

防范说明

P210-P280-P301+P310+P330-P302+P352+P312-P304+P340+P311

危险品标志

F,T

危险类别码

11-23/24/25-39/23/24/25

安全说明

24/25-45-36/37-16

危险品运输编号

UN1230 - class 3 - PG 2 - Methanol, solution

WGK Germany

1

RTECS号

VJ1400000

F

8-10-21

TSCA

Yes

海关编码

29362300

毒性

LD50 in rats (g/kg): >10 orally, 5.0 s.c., 0.56 i.p. (Unna, Greslin)