Sodium hydroxide CAS#1310-73-2

CAS Number: 1310-73-2
Chemical Formula: NaOH
Synonyms:

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Sodium hydroxide is a white, odorless, nonvolatile alkaline material marketed in solid form as pellets, flakes, clumps, or sticks. Its solubility in water is 111% by weight and a vapor pressure of 0mmHg (NIOSH, 1994).
It can react with tricholoethylene (TCE) to form flammable dichloroacetylene and with metals to form hydrogen gas (OEHHA, 1993). Its reactivity with metals should be considered in regards to storage units and containers.

Sodium hydroxide Chemical Properties

Melting point	681 °C(lit.)
Boiling point	1390°C
density	1.515 g/mL at 20 °C
vapor density	<1 (vs air)
vapor pressure	1 mm Hg ( 745 °C)
refractive index	1,473-1,475
Fp	176-178°C
storage temp.	room temp
solubility	H2O: 1 M at 20 °C, clear, colorless
form	beads
Specific Gravity	2.13
color	White
Odor	Odorless
PH	10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution);
PH Range	13 - 14
Water Solubility	SOLUBLE
λmax	λ: 260 nm Amax: 0.015 λ: 280 nm Amax: 0.01
Sensitive	Air Sensitive & Hygroscopic
Decomposition	176-178 ºC
Merck	14,8627
Exposure limits	TLV-TWA air 2 mg/m3 (OSHA); ceiling 2 mg/m3 (ACGIH) and 2 mg/m3/15 min (NIOSH).
Dielectric constant	57.5（25℃）
Stability:	hygroscopic
Cosmetics Ingredients Functions	DENATURANT BUFFERING
InChI	1S/Na.H2O/h;1H2/q+1;/p-1
InChIKey	HEMHJVSKTPXQMS-UHFFFAOYSA-M
SMILES	[OH-].[Na+]
CAS DataBase Reference	1310-73-2(CAS DataBase Reference)
NIST Chemistry Reference	Sodium hydroxide(1310-73-2)
EPA Substance Registry System	Sodium hydroxide (1310-73-2)

Safety Information

Hazard Codes	C,Xi
Risk Statements	36/38-35-34
Safety Statements	26-45-37/39-24/25-36/37/39
RIDADR	UN 1824 8/PG 2
OEL	Ceiling: 2 mg/m3
WGK Germany	1
RTECS	TT2975000
F	8
TSCA	TSCA listed
HS Code	2815 11 00
HazardClass	8
PackingGroup	II
Storage Class	8B - Non-combustible corrosive hazardous materials
Hazard Classifications	Eye Dam. 1 Met. Corr. 1 Skin Corr. 1A
Hazardous Substances Data	1310-73-2(Hazardous Substances Data)
Toxicity	LD orally in rabbits: 500 mg/kg (10% soln) (Fazekas)
IDLA	10 mg/m3

Product Application of Sodium hydroxide CAS#1310-73-2

Sodium hydroxide is sold commercially as anhydrous flakes or pellets or as 50% or 73% aqueous solutions. It has countless industrial uses and is one of the top 10 chemical in terms of production and use on a global scale. Approximately 15 million tons of sodium hydroxide is used annually. Its largest use, consuming about half of its production, is as a base in producing other chemicals. It is used to control pH and neutralize acids in chemical processes. The paper industry makes extensive use of sodium hydoxide in the pulping process. Sodium hydroxide is used to separate fibers by dissolving the connecting lignin. It is used in a similar fashion in the production of rayon from cellulose. Sodium hydroxide is a key chemical in the soap industry.In the saponification process, triglycerides obtained from animal and plants are heated in abasic solution to give glycerol and soap:
Sodium hydroxide is used in the textile industry for bleaching and treating textiles to makethem dye more readily. The petroleum industry uses sodium hydroxide in drilling muds and asa bactericide. Sodium hypochlorite (NaOCl) is used extensively for cleaning and as a disinfectant.Common household bleach consists of about 5% sodium hypochlorite solution. Sodiumhypochlorite is prepared by reacting chlorine with sodium hydroxide: Cl2(g) + 2NaOH(aq) →NaOCl(aq) + NaCl(aq) + H2O(l). Sodium hydroxide is used in the food industry for cleaningand peeling fruits and vegetables. Sodium hydroxide is a minor ingredient in many commonhousehold products, but in a few it may constitute more than half of the product. Dranocrystals contain between 30% and 60% sodium hydroxide and some drain cleaners can consistof 100% sodium hydroxide.

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