𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The stability of carotene solutions towards oxidation

✍ Scribed by McGillivray, W. A.

Publisher
Wiley (John Wiley & Sons)
Year
1950
Weight
337 KB
Volume
69
Category
Article
ISSN
0368-4075

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The rates of decomposition of carotene in liquid paraffin and in hydrogenated coconut oil under accelerated conditions at 100Β° C. with forced aeration have been investigated. In the case of paraffin containing less than 50ΞΌg./ml., the rate is shown to be proportional to the log. of the concentration. The spectral changes occurring during oxidation at 100Β° c. and irradiation at room temperature hare also been followed and it is shown that the estimation of vitamin A in the presence of oxidized carotene by direct spectroscopic measurement is possible provided a simple correction is applied. Hydrogenated Coconut oil is suggested as a suitable solvent for carotene in feeding trial work.

πŸ“œ SIMILAR VOLUMES

The Stability of Nitric Oxide in Acid So
The Stability of Nitric Oxide in Acid Solutions
✍ Gabi Gabor πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 84 KB

Aqueous acid solutions of nitric oxide (NO) are used as a source for this species in chemical and biological experiments. To utilize known quantities of NO, it is necessary to determine the escape rate of NO from these solutions. Escape rates at constant temperature are concentration dependent. The

The stability of permanganate solutions
The stability of permanganate solutions
✍ Cohen, J. U. ;Oddy, R. W. πŸ“‚ Article πŸ“… 1890 πŸ› Wiley (John Wiley & Sons) βš– 231 KB

~'IIERF: is iio ntiiilyticnl process wlticli 110s Iiiid more clcttinnds tiinclc iipoii it iii rccciit years thnn 11 riipid niid reliiible :iictliod for cstiiiintiiig orgiiiiic iiitropcii. Tlic IICW process of Kjcldntil iippcnrs to Iiirvc siipplictl tlicsc rcqiiircnteitts. Tliiit of N'nnklyti is oliv

The Rates of Diazomethane Formation from
The Rates of Diazomethane Formation from Methylnitrosoamides. The stability of diazomethane solutions towards aqueous alkalis
✍ Michael Pearce πŸ“‚ Article πŸ“… 1980 πŸ› John Wiley and Sons 🌐 German βš– 267 KB

## Abstract The rate of hydrolysis of __N__‐methyl‐__N__‐nitrosoamides by aqueous alkalis varies greatly. Methylnitrosourea **(1)** is hydrolyzed rapidly by aqueous KOH‐solutions at low temperatures to give a high yield of diazomethane. Under similar conditions, __N,N__′‐dimethyl‐__N,N__′‐dinitroso