sulphur 音标拼音: [s'ʌlfɚ]
n .
U 硫磺
U 硫磺
sulphur n 1 :
an abundant tasteless odorless multivalent nonmetallic element ;
best known in yellow crystals ;
occurs in many sulphide and sulphate minerals and even in native form (
especially in volcanic regions ) [
synonym : {
sulfur }, {
S },
{
sulphur }, {
atomic number 16 }]
v 1 :
treat with sulphur in order to preserve ; "
These dried fruits are sulphured " [
synonym : {
sulphur }, {
sulfur }]
Sulphur \
Sul "
phur \,
n . [
L .,
better sulfur :
cf .
F .
soufre .]
1 . (
Chem .)
A nonmetallic element occurring naturally in large quantities ,
either combined as in the sulphides (
as pyrites )
and sulphates (
as gypsum ),
or native in volcanic regions ,
in vast beds mixed with gypsum and various earthy materials ,
from which it is melted out .
Symbol S .
Atomic weight 32 .
The specific gravity of ordinary octohedral sulphur is 2 .
05 ;
of prismatic sulphur ,
1 .
96 .
[
1913 Webster ]
Note :
It is purified by distillation ,
and is obtained as a lemon -
yellow powder (
by sublimation ),
called flour ,
or flowers ,
of sulphur ,
or in cast sticks called roll sulphur ,
or brimstone .
It burns with a blue flame and a peculiar suffocating odor .
It is an ingredient of gunpowder ,
is used on friction matches ,
and in medicine (
as a laxative and insecticide ),
but its chief use is in the manufacture of sulphuric acid .
Sulphur can be obtained in two crystalline modifications ,
in orthorhombic octahedra ,
or in monoclinic prisms ,
the former of which is the more stable at ordinary temperatures .
Sulphur is the type ,
in its chemical relations ,
of a group of elements ,
including selenium and tellurium ,
called collectively the sulphur group ,
or family .
In many respects sulphur resembles oxygen .
[
1913 Webster ]
2 . (
Zool .)
Any one of numerous species of yellow or orange butterflies of the subfamily {
Pierinae };
as ,
the clouded sulphur ({
Eurymus philodice }
syn . {
Colias philodice }),
which is the common yellow butterfly of the Eastern United States .
[
1913 Webster ]
{
Amorphous sulphur } (
Chem .),
an elastic variety of sulphur of a resinous appearance ,
obtained by pouring melted sulphur into water .
On standing ,
it passes back into a brittle crystalline modification .
{
Liver of sulphur }. (
Old Chem .)
See {
Hepar }.
{
Sulphur acid }. (
Chem .)
See {
Sulphacid }.
{
Sulphur alcohol }. (
Chem .)
See {
Mercaptan }.
{
Sulphur auratum } [
L .] (
Old Chem .),
a golden yellow powder ,
consisting of antimonic sulphide , {
Sb2S5 }, --
formerly a famous nostrum .
{
Sulphur base } (
Chem .),
an alkaline sulphide capable of acting as a base in the formation of sulphur salts according to the old dual theory of salts . [
Archaic ]
{
Sulphur dioxide } (
Chem .),
a colorless gas , {
SO2 },
of a pungent ,
suffocating odor ,
produced by the burning of sulphur .
It is employed chiefly in the production of sulphuric acid ,
and as a reagent in bleaching ; --
called also {
sulphurous anhydride },
and formerly {
sulphurous acid }.
{
Sulphur ether } (
Chem .),
a sulphide of hydrocarbon radicals ,
formed like the ordinary ethers ,
which are oxides ,
but with sulphur in the place of oxygen .
{
Sulphur salt } (
Chem .),
a salt of a sulphacid ;
a sulphosalt .
{
Sulphur showers },
showers of yellow pollen ,
resembling sulphur in appearance ,
often carried from pine forests by the wind to a great distance .
{
Sulphur trioxide } (
Chem .),
a white crystalline solid , {
SO3 },
obtained by oxidation of sulphur dioxide .
It dissolves in water with a hissing noise and the production of heat ,
forming sulphuric acid ,
and is employed as a dehydrating agent .
Called also {
sulphuric anhydride },
and formerly {
sulphuric acid }.
{
Sulphur whale }. (
Zool .)
See {
Sulphur -
bottom }.
{
Vegetable sulphur } (
Bot .),
lycopodium powder .
See under {
Lycopodium }.
[
1913 Webster ]
安装中文字典英文字典查询工具!
中文字典英文字典工具:
复制到剪贴板
英文字典中文字典相关资料:
Time in Alabama, United States now Exact time now, time zone, time difference, sunrise sunset time and key facts for Alabama, United States
Time Now in Alabama, United States | Time. now Get the exact current time in Alabama, United States Representative IANA timezone is America Chicago See live times for all 29 cities, including Huntsville
Current Time in Alabama, United States - WorldTimeServer. com Try our World Meeting Planner and get a color-coded chart comparing the time of day in Alabama, United States with all of the other international locations where others will be participating
Current time in Alabama, United States Check time in Alabama right now, UTC offset and daylight saving time dates When does clock change in 2026?
Current time in Alabama Live exact time in Alabama with seconds Includes daylight saving time transitions for Alabama Current time zone UTC-05:00
Time in Alabama, USA (LIVE) - Worldometer Exact local time now in Alabama, United States Time Zone, UTC offset, and DST Clock with seconds, 12 24h formats, sunrise sunset, and more
Current Local Time in Birmingham, Alabama, United States Current local time in Birmingham, Alabama, United States Get maps, travel information, Birmingham Timezone and CST
Alabama - Local Time Time Zones in United States | Timezones. com View current local times and time zone details for cities in Alabama, United States Includes DST information and a list of cities Accurate regional time from Timezones com
TimeAndDate. US - Current Time and Date in United States Get accurate current time and date across all US time zones Live clocks, calendar, DST information, and timezone tools for EST, CST, MST, PST, AKST, and HST
Time in Alabama, United States - timeanddate. com Alabama time now Alabama time zones and time zone map with current time in the largest cities