Sodium hydroxide manufacturers and suppliers in india

Sodium hydroxide

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

Flash point:: 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 Range: 13 - 14

PH: 10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution);

Water Solubility: SOLUBLE

Sensitive: Air Sensitive & Hygroscopic

λmax: λ: 260 nm Amax: 0.015
λ: 280 nm Amax: 0.01

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

Safety Information

Symbol(GHS): GHS05

Signal word: Danger

Hazard statements: H290-H314

Precautionary statements: P234-P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338

Hazard Codes: C,Xi

Risk Statements: 36/38-35-34

Safety Statements: 26-45-37/39-24/25-36/37/39

OEL: Ceiling: 2 mg/m3

RIDADR: UN 1824 8/PG 2

WGK Germany: 1

RTECS: TT2975000

F: 8

TSCA: Yes

HS Code: 2815 11 00

HazardClass: 8

PackingGroup: II

Toxicity: LD orally in rabbits: 500 mg/kg (10% soln) (Fazekas)

IDLA: 10 mg/m3

Use

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.