Company: BEST INC., LIMITED.

Add.: Rooms 1318-20, 13/F Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon, Hong Kong

Tel: +852-30774337       Fax:+852-30774338

 

1. IDENTIFICATION

 

Product Name : CALCIUM CARBONATE

Other Names : LIMESTONE CHALK

UN No. : N/A

Dangerous Goods Class : None Allocated

Subsidiary Risk : None Allocated

Hazchem Code : N/A

Pack Group : 0

EPG : N/A

Poisons Schedule : N/A

Uses :

Limestone is used in the manufacture of paints, plastics, glass, and paper. Selected grade are used for animal, abrasive blasting, acid soil amelioration, and colliery 'stonedusting'. Source of lime; netralising agent, filler, and extender in rubber, plastics, paints; opacifying agent in paper; fortification of bread; putty; tooth powders; antacid; whitewash; Portland cement; sulfur dioxide removal from stack gases; metallurgical flux; analytical chemistry; carbon dioxide generation (laboratory).

1.1 Physical Description / Properties

Appearance : White powder, or colourless crystals. Odourless and tasteless.

Formula : CaCO3

Boiling Point : N/A deg C

Melting Point : 825 deg C

Vapour Pressure : N/A

Specific Gravity : 2.7 (water = 1)

Flash Point : N/A

pH : N/A ()

Solubility in water : Ins. g/l (25 deg C)

Flammability Limits (as percentage volume in air)

Lower Explosion Limit : N/A

Upper Explosion Limit : N/A

1.2 Other Properties

Soluble in acids with evolutions of carbon dioxude.

1.3 Ingredients

Chemical Entity	CAS No.	Proportions (%)
CALCIUM CARBONATE	[ 1317-65-3]	100

 

2. HEALTH HAZARD INFORMATION

 

Swallowed

No adverse effects expected. May cause wind in gastrointestinal tract.

Eye

May cause mechanical irritation if exposed to large amounts of dust.

Skin

No adverse health effects expected.

Inhaled

Not considered to create a respiratory problem. There is no record that the product regarded as sensitiser material.

No chronic effects information available for the product.

Rinse mouth with water. Seek medical advice.

Irrigate with copious amounts of water for 15 minutes. If irritation develops, seek medical advice.

If skin contact occurs, wash contaminated skin with plenty of soap and water. If irritation develops, seek medical advice. Remove contaminated clothing and wash before reuse.

Remove to fresh air. If breathing is difficult give oxygen. Seek medical advice.

Ensure an eye bath and safety shower are available and ready for use.

Consult and then treat patient symptomatically.

No information available.

 

3. PRECAUTIONS FOR USE

 

TWA (inspirable dust): 10 mg/m3 for calcium carbonate. TWA (respirable dust): 0.1 mg/m3 for silica (crystalline) quartz.

General, local exhaust ventilation as necessary to control any air contaminants, to within their TWA limitations.

Respirator type - advisable to wear a dust/mist respirator (class P1) complying to AS 1716 (1991). Prot4ective gloves can be used, but are not necessary. Eye protection: safety glasses recommended with side shields. Clorhing: overalls or similar protective clothing.

Non flammable.

 

SAFE HANDLING INFORMATION

 

Avoid breakage of bagged material or spills of bulk material. Use dustless systems for handling, storage and cleanup so that airbourne dust does not exceed TWA. Not defined as Dangerous Good by the n Code for the Transport of Dangerous Goods by Road and Rail.

UN No. N/A

Class None Allocated

Sub Risk None Allocated

Hazchem Code N/A

Pack Group 0

EPG No. N/A

Shipping Name CALCIUM CARBONATE

Hazard

Clean up personnel should wear full protective clothing including self containe breathing apparatus. Contain spillage. Do not use cleaning method that will generate dust.

Scoop up spilled material or use a vacuum.

Dispose of in a convenient and logical manner. Refer to State Land Waste Management Authority for environmental impact.

Fire / Explosion

Not combustible.

Firefighters should wear full protective clothing and use self contained breathing apparatus. When heated, decomposes, liberating carbon dioxide.