OEM/ODM China 24″ rubber glove with cotton linning-smooth finish sale to New Zealand

FAQ Content

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General safety precautions when using sulfuric acid
Always wear safety goggles
• Wear protective gloves and a laboratory coat
• Work near a ready supply of running water
• Have a supply of sodium carbonate or sodium bicarbonate at hand to neutralise any spills
• For regular use store the acid in glass bottles no larger than one litre
• Try to avoid dribbling acid down the outside of the bottle and if you do, wipe it off carefully with wet tissue
• Always place the storage bottle in a drip tray to ensure that any drips do not contact the bench or shelf
• When diluting concentrated acid, always add the acid to the water and do slowly
How can it be safely stored?
• train fully the person involved in the storage of sulfuric acid
• avoid storing the acid with water, chlorates, chromates, carbides, nitrates and powdered metals
• store in a cool, dry, well-ventilated area
• store away from sunlight and open flames
• refrain from storing in metal drums as hydrogen gas may result
• use dry chemical or carbon dioxide extinguishers when dealing with fire caused by sulfuric acid
Transport
The concentration of commercially available sulfuric acid is 98% and sulfuric acid cannot ionize. Therefore it does not attack iron and steel and can safely be stored and transported in steel containers or in steel tankers. Steel has the advantage of greater strength when compared with glass and plastic containers. However, diluted sulfuric acid contains hydrogen ions vigorously attacks metals such as iron and steel. Hence dilute acid must be stored in glass or plastic containers that make it more difficult to transport. When storing and transporting the acid in steel containers, care must be taken to avoid contamination with water, because that could set off a vigorous reaction between the acid and the container.
First-hand investigation—Reactions with sulfuric acid
Safety issues
Always wear safety glasses to avoid eye damage. If dilute sulfuric acid is spilt on the skin then wash it off with water. Concentrated sulfuric acid should only be used by the teacher. It can cause severe burns and generates considerable heat when it is added to water. Sulfuric acid should always be diluted by adding small volumes of the acid to large volumes of water with stirring.
Reactions to investigate
Oxidising agent
1 Test small samples of metals (e.g. Mg, Zn, Fe, Sn, Cu) with 2 mL volumes of cold and warm 2 mol L-1 H2SO4. Record your observations and write balanced equations for any reactions.
2 Teacher demonstration: the teacher can heat a granule of tin in a small volume of concentrated sulfuric acid using a hot water bath in a fume cupboard. To check whether sulfur dioxide is released, place a strip of filter paper soaked in acidified potassium dichromate at the mouth of the test tube. It will turn green if sulfur dioxide is present.
Dehydrating agent
Teacher demonstration: a spoon of sugar is placed in a large test tube. 1–2 mL of concentrated sulfuric acid is added. The tube is placed in a test tube rack in the fume cupboard. The sugar turns brown, then black as carbon forms. The heat released causes the water and acid to begin to vaporise.

UK POOL
1. Wide of soldier walking in sandstorm
2. Various military vehicles manoeuvering during sandstorm
3. Sign to camp being buffeted by wind
4. Pull out from entrance to camp
5. SOUNDBITE (English) Colonel Chris Bernon, British army spokesman
“All I can say is that British forces are deployed forward in forward assembly areas in positions from which they could execute military operations immediately should those orders come.”
6. Tank driving between dunes in sandstorm
7. Soldier walking in sandstorm
8. Soldier sheltering from wind in tent
9. Tank moving past tent
10. Soldier in tank taking off goggles and mask
11. Various of soldiers putting chemical suits on
12. Various of chemical weapon exercise
13. Protective black rubber glove pops out of tank hatch

POOL
March 19, 2003
14. Various of soldiers stretchering “casualty” into medical vehicle during chemical exercise
15. Vehicle driving off
16. Vehicle coming to halt
17. Line of vehicles

UK POOL
March 19, 2003
18. Tornado taxiing on tarmac
19. Midshot of cockpit
20. Tornado taxiing up runway
21. Tornado taking off

APTN
March 19, 2003
22. Pan from Kuwait City building to soldiers and armoured vehicle
23. Two soldiers on top of armoured vehicle
24. Various of busy major road in sandstorm, civilian vehicles and man walking in high wind
25. Wide exterior of exterior Kuwait Airport
26. Various people wheeling baggage into departures building
27. People queuing at check-in
28. Pan of luggage
29. Wide interior of departures hall

STORYLINE:

With the deadline for Iraqi president Saddam Hussein just hours away, British troops in Kuwait were, on Wednesday, waiting to deploy towards the Kuwait-Iraq border.

The first American troops began moving forward earlier in the day.

A strong sand storm swept in on Wednesday, affecting several units, hampering movement and visibility.

The storm was expected to last through the day, with heavy gusts of wind subsiding in the night.

British soldiers have been ordered to take anti-nerve agent tablets in case chemical weapons are used.

Final medical emergency drills in nuclear chemical and biological warfare suits were being carried out.

At a British base near Kuwait City, Tornado aircraft continued practicing.

Tornados are capable of precision bombing.

Britain has Tornados, Harrier and Jaguar fighter jets and other planes in the region.

The heavy sandstorms engulfed Kuwait City where the Kuwait National Guard has been deployed to protect important sites and buildings.

Meanwhile the scramble to get out of the region continues.

Kuwait airport remained busy on Wednesday as residents, fearful of chemical attack and terrorist reprisals, left the city.

The small oil-rich state is a major U.S. ally in the Gulf.

There are 40,000 British troops massed in the region.

In all, about 300,000 U.S. and British troops were within striking distance of Iraq, backed by more than 1,000 warplanes.

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