PHYSICAL PROPERTIES OF THE DIAZO COMPOUND
Reading edition
It is almost insoluble in water, and is insoluble in denatured alcohol and ether.
It is a white solid which can be dried and kept without apparent decomposition; it gradually turns pink when exposed to the light for several days, so is kept in a brown bottle if not required for immediate use. It does not explode when struck with a hammer, but deflagrates violently if a flame is brought near or if heated on porcelain.