Sodium Hydroxide CAS#1310-73-2

Name: Sodium Hydroxide CAS#1310-73-2
SKU: 0

Highly Versatile Applications – Essential in diverse industries including paper, textile, soap, and cleaning agent production.
Strong Alkalinity – Highly effective for chemical reactions, cleaning, and neutralization processes.
Multiple Solubility Options – Readily dissolves in water, methanol, and ethanol for flexible usage.
Moisture and Gas Absorption – Deliquescent nature enables absorption of water vapor and acidic gases like CO₂.

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product description

Sodium hydroxide, also known as caustic soda, has the chemical formula NaOH. It is a highly corrosive strong alkali, typically appearing as white flakes or granules. It readily mixes with water to form an alkaline solution and is also soluble in methanol and ethanol. Being deliquescent, it absorbs moisture from the air as well as acidic gases like carbon dioxide. Sodium hydroxide is one of the most widely used chemicals, essential in many industrial processes, including the production of paper pulp, textiles, soap, and other cleaning agents. It is also commonly used in household alkaline drain cleaners.

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
color	White
Specific Gravity	2.13
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
Decomposition	176-178 ºC
λmax	λ: 260 nm Amax: 0.015
λmax	λ: 280 nm Amax: 0.01
Merck	148,627
Dielectric constant	57.5（25℃）
Exposure limits	TLV-TWA air 2 mg/m3 (OSHA); ceiling 2 mg/m3 (ACGIH) and 2 mg/m3/15 min (NIOSH).
Stability:	hygroscopic
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
WGK Germany	1
RTECS	TT2975000
F	8
TSCA	Yes
HS Code	2815 11 00
HazardClass	8
PackingGroup	II
Hazardous Substances Data	1310-73-2(Hazardous Substances Data)
Toxicity	LD orally in rabbits: 500 mg/kg (10% soln) (Fazekas)
IDLA	10 mg/m3

Sodium hydroxide has a broad range of applications. In chemical experiments, it serves not only as a reagent but also as an alkaline desiccant due to its strong hygroscopic properties. Caustic soda plays a vital role in the national economy, with numerous industrial sectors relying on it. The largest consumer is the chemical manufacturing industry, followed by paper production, aluminum and tungsten smelting, viscose fiber manufacturing, and soap production. It is also used in the manufacture of dyes, plastics, pharmaceuticals, organic intermediates, reclaimed rubber, metal sodium electrolysis, water treatment, and inorganic salt production such as borax, chromium salts, manganates, and phosphates.

Industrial sodium hydroxide must meet the requirements of national standard GB209-2006;
Industrial ion-exchange membrane sodium hydroxide should comply with GB/T11199-89;
Sodium hydroxide for chemical fiber should meet GB11212-89;
Food-grade sodium hydroxide must conform to GB5175-85.

In industrial contexts, sodium hydroxide is commonly referred to as caustic soda, a name derived from its ability to cause severe skin burns upon contact with concentrated solutions. It dissolves proteins, making alkali burns slower to heal than acid burns. A 0.02% solution instilled into rabbit eyes can damage the corneal epithelium. Toxicity data include: mouse intraperitoneal LD50 of 40 mg/kg and rabbit oral LDLo of 500 mg/kg. Dust can irritate the eyes and respiratory tract, corrode the nasal septum, and damage skin—especially mucous membranes—producing soft scabs that may penetrate deeply and leave permanent scars.

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1. Q: What fine chemical products does your company specialize in, and which industries do they serve?
Answer: Our company specializes in fine chemical products—including rubber and plastic additives, coating additives, composite material additives, and single- or multi-element fertilizers—and offers custom chemical manufacturing services. Our products are widely used in sectors such as coatings and inks, plastics, construction materials, textiles, advanced materials, agriculture, and water-saving irrigation, meeting the formulation and production requirements of diverse clients.

2. Q: Do you offer product customization for specifications and formulations? Is technical support available?
A: Yes, we support customization of specifications and formulations. Backed by a professional R&D team, we can adjust product parameters and formulas to suit specific operating conditions and industry standards. We also provide comprehensive technical support, including pre-sales product selection and post-sales application guidance.

3. Q: Can you provide complete quality inspection reports and relevant qualification documents with shipments?
A: We provide a full set of customs clearance and compliance documentation to meet both domestic and international trade standards. Full traceability is maintained for every product batch.

4. Q: What is the minimum order quantity (MOQ), and what is the typical lead time?
A: We support small-batch trial orders for standard products with flexible MOQs. Orders for in-stock items ship within 3–7 business days; lead times for large-volume or custom orders are confirmed based on production schedules to ensure timely delivery and maintain our clients' production continuity.

5. Q: Are your products available for export? Which countries and regions do you primarily serve?
A: We possess full import-export qualifications and a robust logistics network for international trade. Our products are exported in full compliance with regulations. Our key markets include Southeast Asia, the Middle East, Africa, and Europe, where we provide stable supplies and one-stop export delivery services to overseas clients.

6. Q: How do you ensure consistent product quality? What is your after-sales process for quality issues?
A: We implement end-to-end quality control, strictly monitoring raw materials, production, testing, and warehousing to ensure product stability. In the event of a quality issue, we respond quickly to verify the situation and offer solutions such as returns, replacements, reshipments, or technical adjustments to safeguard our clients' interests.

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