پتاسیم هیدروکساید 105021 مرک

Description
Catalogue Number	105021
Synonyms	Potash caustic

Product Information
CAS number	1310-58-3
EC index number	019-002-00-8
EC number	215-181-3
Grade	ACS,ISO,Reag. Ph Eur
Hill Formula	HKO
Chemical formula	KOH
Molar Mass	56.11 g/mol
HS Code	2815 20 00

Applications
Application	Potassium hydroxide pellets for analysis (max. 0.002% Na) EMSURE® ACS,ISO,Reag. Ph Eur. CAS No. 1310-58-3, EC Number 215-181-3.

Physicochemical Information
Density	2.04 g/cm3 (20 °C)
Melting Point	360 °C
pH value	14 (56 g/l, H₂O, 20 °C)
Solubility	1130 g/l

Toxicological Information
LD 50 oral	LD50 Rat 333 mg/kg

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H290: May be corrosive to metals. H302: Harmful if swallowed. H314: Causes severe skin burns and eye damage.
Precautionary Statement(s)	P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
RTECS	TT2100000
Storage class	8B Non-combustible, corrosive hazardous materials
WGK	WGK 1 slightly water endangering
Disposal	13 Bases and alcoholates should be diluted if necessary by carefully stirring them into water and then neutralized (protective gloves, fume cupboard!) with hydrochloric acid (Cat. No. 100312). Before placing in container D, check the pH with pH universal indicator strips (Cat. No. 109535).

Safety Information
Hazard Symbols	Corrosive
Categories of danger	harmful, corrosive
R Phrase	R 22-35 Harmful if swallowed.Causes severe burns.
S Phrase	S 26-36/37/39-45 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

Storage and Shipping Information
Storage	Store at +5°C to +30°C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 1813 , 8, II
Declaration (transport by air) IATA-DGR	UN 1813 , 8, II
Declaration (transport by sea) IMDG-Code	UN 1813 , 8, II, Segregation Group: 18 (Alkalis)

Specifications
Assay (KOH)	85.0 - 100.5 %
Assay (total alkalinity calc. as KOH)	85.0 - 100.5 %
Identity	passes test
Appearance of solution	passes test
Carbonate (as K₂CO₃)	≤ 1.0 %
Chloride (Cl)	≤ 0.0005 %
Phosphate (PO₄)	≤ 0.0005 %
Silicate (SiO₂)	≤ 0.002 %
Sulphate (SO₄)	≤ 0.0005 %
Total nitrogen (N)	≤ 0.0003 %
Heavy metals (as Ag)	≤ 0.001 %
Heavy metals (as Pb)	≤ 0.001 %
Al (Aluminium)	≤ 0.0002 %
Ca (Calcium)	≤ 0.0005 %
Cd (Cadmium)	≤ 0.00001 %
Cu (Copper)	≤ 0.0001 %
Fe (Iron)	≤ 0.0005 %
Mg (Magnesium)	≤ 0.0005 %
Mn (Manganese)	≤ 0.00005 %
Na (Sodium)	≤ 0.002 %
Ni (Nickel)	≤ 0.0001 %
Pb (Lead)	≤ 0.0001 %
Zn (Zinc)	≤ 0.0001 %