Caustic Soda | Arvin Tajhiz

Caustic Soda Flakes

Caustic soda (Sodium hydroxide) is a white, odorless, and solid inorganic compound chemical. It is non-volatile and has high corrosive properties, which easily absorb air moisture and it’s one of the most important industrial chemicals. Its water solution has numerous applications in different industries because of its highly caustic base and alkalescence. Sodium hydroxide, with the formula NaOH, also known as lye and caustic soda, is a popular strong caustic base.

Product description:

Product Information: Sodium Hydroxide (NaOH), also known as Soda caustic, is a silk-like substance that is white, extremely absorbent of moisture, and generates a considerable degree of heat when dissolved in water. It is available as flakes of white color in solid form. Chemical analysis of the substance is as follows:

Naoh	Min 98-99%
NaCI	Max 0.06 %
Na₂CO₃	Max 70 PPM
Ca++ Mg++	Max 0.3 PPM
Na2CO3	Max 0.4 %
Hg++	NIL

Chemical Formula	NaOH
CAS #	1310-73-2
UN #	1823

Item	Characteristic	Unit	Value	Desc
1	Physical State	-	Solid	-
2	Molecular Weight	g/mo	40	-
3	Appearance	-	White flakes	-
4	Vapor Pressure	mmHg	1	739 ˚C @
5	Odor	-	Odorless	-
6	PH	-	14	@ 5% aq soln
7	Boiling Point	˚C	1390	@ 760 mmHg
8	Freezing/Melting Point	˚C	318	-
9	Solubility in water	g/l	420	@ 20 ˚C
10	Density	g/cm3	2.13	-

Item	Properties	Test Method	Value	Accepting Limit	Test Results
1	NaOH	ASTM D-3875	%W	Min 98	98-99.5
2	NaCl	ASTM D-3875	%W	Max 0.06	0.0085
3	Na2CO3	ASTM D-3875	%W	Max 1	0.43
4	Fe	ASTM D-3875	mg/kg	Max 30	12.5
5	Na2SO4	ASTM D-516	%W	Max 0.01	0.0047
6	SiO2	ASTM D-859	%W	Max 0.02	0.0019
7	Al2O3	ASTM D-3875	mg/kg	Max 20	<20
8	Insoluble In water	ASTM D-3875	%W	Max 0.1	0
9	Heavy Metal(Pb)	ASTM D-3875	mg/kg	Max 20	<20

HAZARD IDENTIFICATION

Danger! Causes eye and skin burns. Causes digestive and respiratory tract burns. Hygroscopic (absorbs moisture from the air). • EXTREMELY CORROSIVE • Fatal if inhaled. • Avoid to swallowed. • Causes severe skin burns and eye damage. • Can cause blindness, permanent scarring and death. • Toxic if swallowed and in contact with skin • Suspected of damaging the unborn child. • Suspected of causing genetic defects. • May cause damage to cardiovascular, respiratory, nervous, and gastrointestinal systems and liver and blood through prolonged or repeated exposure. • Harmful to aquatic life.

PACKAGING, TRANSPORT & SAFE HANDLING

Caustic soda flake packing has a different kind but there is a very important item that must be noted, this item is transporting and storing the sodium hydroxide flake if the packing of sodium hydroxide flake has low quality the moisture of weather will penetrate into sodium hydroxide packing so the caustic soda flake will stick together and will turn into lump mode so the quality of sodium hydroxide flake will reduce and would not useable after a little time. Sodium hydroxide flake packing must be from two-ply laminated polypropylene bags that are sealed completely with strong polyester yarn, if using normal yarn for sealing the bags after a little time sodium hydroxide flake will solve the yarn. The best Packing of Caustic soda flakes would be 25 kg PP bags and for keeping away from injuries when transporting it's better to put 25 kg bags in Jumbo bags.