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C.A.S. NO. ALLIED PRODUCTCODE.
TRADE NAME (COMMON NAME OR SYNONYM) !XI
OXALIC ACID. Crystal. Reagent. ACS 144.62-7 (anhydrous form)
ICHEMICAL NAME
Oxalic Acid Dihydrate
FORMULA MOLECULAR
WEIGHT
(COOH)2 . 2H20 126.07
ADDRESS (No. STREET. CITY. STATE AND ZIP CODE)
Allied Chemical
P.O. Box 1139R
Morristown, N.J. 07960
CONTACT PHONE NUMBER ISSUED DATE REVISED DATE
Director, Product Safety (201) 455.4157 Jan., 1982
EMERGENCY PHONE NUMBER
Skin or Eyes: Promptly flush with plenty of water for at least 15 minutes. l
(201) - 455-2000
Inhalation~ Remove to fresh air. If breathing with difficulty, give oxygen (if a qualified oper-
ator is present).
..
Ingestion: Do not induce vomiting. If conscious give immediately by mouth a dilute solution of calcium lactate USP or calcium
gluconate,USP,or milk.
For all routes: Get prompt medicalattention.
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HEALTH
INHALATION
Inhalation of dust or mists can cause irritation or burns to the upper respiratory system, including nose, mouth, and throat.
Can also irritate lungs.
- -
INGESTION Can cause irritation and corrosive burns to mouth, throat, and stomach, etc. Can be fatal if
swallowed. Oxalic acid is a systemic poison affecting the central nervous system and kidney function as well as other o~gans.Can
cause hypocalcemia. 'rhe mean lethal dose for adult humans is estimated to be about 21 to 42 grams of the dihydrate. LDSO (rat)
SKIN
728 mg/kg.
Can cause irritation or corrosive burns. Dilute solutions can be irritating on prolonged exposure,
EYES
I
Can causesevere irritation, corneal burns, and conjunctivitis
r p~ISSIBLE (SEE SECTION
CONCENTRATION JI AIR Threshold Limit Value (TL V)
BIOLOGICAL
Urinary oxalate excretion
1mg/m3 (as anhydrous acid)
should not exceed 40-50 mg/24h,
IUNUSUAL CHRON IC TOXICITY
C2021123 (6/81)
FIRf. DO
EXPLOSION
f
IiLMHPOI~.'f aC AUTO IGNITION aC I FLAJi o1ABLE LIMITS IN AIR 1% BY VOL.)
'.
Not appf1C1b1e (solid) TEMPERATURE No ata available t
OOPEN cUP OCLOSED CUP
UNUSUAL FIRE ANO EXPLOSION HAZARQS
(
Br-'e5 a combustible solid below 102oC. Partial decomposition occurs at 150oC. Decomposition products include carbofl
m.. .,xide and formic acid. which are both toxic and flammable. Can react violently with strong oxidizers.
EXTINGUISHING AGENTS RECOMMENDED
FIRE
Water spray, dry chemical. "alcohol" type foam, or CO2-
FIRE EXTINGUISHING AGENTS TO AVOID
~
--
eCIAL I IGHTIN AUTIONS
Wear self-contained breathing apparatus. Formic acid and carbon monoxide and other toxic gasesmay be present. If apparatus
has no facepiece, wear chemical safety goggles. Water spray may be used to cool or soak containers, to knock down fumes,
or to protect perso""el.
V NTILATION
Local ventilation: if dusty or misty condition prevails or if the product is heated to produce fumes.
Natural ventilation: generally adequate in the absenceof dust, mist, or fumes.
RMALHA CLING
Do not get in eyes, on skin, on clothing. Do not breathe dust. Keep away from heat and open flame. Becauseof oral toxicity,
no smoking or eating while handling. Use good personal hygiene and housekeeping.
STORAGE
S~ in a cool, dry place of low fire risk, away from food, food chemicals, or strong oxidizers. Keep container closed, and pro-
t, om physical damage.
Sweep up immediately with minimum dusting and keeping away from heat or flame. Collect in containers, e.g. fiberboard,
close, label "Poison" and store as above. Alkali solution may be used, with the usual precautions, to neutralize any residue.
Resulting neutralized solution is also toxic and should be handled accordingly. Attempt to keep solutions out of sewer. Any
releaseto the enviroment of solutions of these products may be subject to Federal and/or state reporting requirements. Check
with appropriate agencies.
ECtAL: PRECAUTIONS/PROCEDURES/LABEL INSTRUCTIONS
Certain rare individuals are subject to oxalosis and are unusually reactive to exposure to this product.--Ref (a). Danger! May
be fatal if swallowed. Causeseye and skin irritation.
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RESPIRATORY PROTECTION
For dust or mist concentration above the TL V but under 50mgicu. m. of air, use high-efficiency particle filter, supplied-air res-
~tor. or self-contained breathing a~ratus. The latter t~ are also effective for fume. All th~ tvJ:eishould have lIll facepiece.
evESANDFACE -- - - - - -
Chemical safety goggles if there is any possibility of contact of eyes with dust, mist, or solution. A face shield is recommended if
pouring solid or solution, especially large quantities, as additional protection. In the presence of dust or solution, do not wear
contact lenses.
HANDS, ARMS, AND BODV ---
Rubber gloves for normal conditions working with the solid. if there is prolonged or repeated contact with dust, or if there is
any..D()SSibility contact with solutions, add face shield and complete protective clothing (impervious).
of
5"fHi -OTHINGAND EQUIPMENT
Neytralization supplies and equipment. If solutions are being handled or stored, provide eyewash and quick-drench shower
facilities.
2
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MATERIAL I~ fAT NORMAL CONDITIONS) , APPEARANCEANO ~DOR
i
. Colorless
crystals;
U LIQUID 0 GAS
IX] SOLIO
Odorless.
v- GRAVITY
SPECIFIC
癱 VAPOR DENSITY
None (see
BOiliNG POINT (AIR ~ 1)
(H20=1) (solid)
Section Gj
NA
1.653
101.5 癱
MEL TaNG POINT
(watervaporonly at ambient)
SOLUBILITY IN WATER pH VAPOR PRESSURE
(% by Wel!j\t)
(mm Hg at 200 CID (PSIGIO
Approx. 11.7% solution at 20癈 1% solution., pH = 3 NA
EVAPORATION RATE %VOLATILES BY VOLUME
(Butyl Acetate % 1) 0 IEther ~ 1) C {At 20?C}
NA NA .anhydrous basis
I STABILITY CONDITIONS TO AVOID
Temperatures of 100oC and above, because material begins to sublime with
::J UNSTABLE IX STABLE
decomposition, yielding toxic, flammable, and corrosive gases. The evolution
becomes significant at 150oC.
INCOMPATIBILITY IMATERJALS TO AVOID)
Reacts with alkalies and with silver compounds. Reported to be incompatible with silver, Reference (d). Can react violently with
strong oxidizing materials. Reacts with "vater-reactive materials such as oleum, possibly with violence.
,
HAZARDOUS DECOMPOSITION PRODUCTS
Thermal decomposition yields at least formic acid, carbon monoxide. Combustion rxobably yields the~ and also carbon dioxide.
1AZARDOUS POL YMERIZATION CONDITIONS TO AVOID
0 MAY OCCUR IX WILL NOT OCCUR
.:-: ':."#:.1:f 11111""11.' ~ III ~ ,'I ~"II,Jj~lmn.
IN:f
MATERIAL OR COMPONENT/C.A.5. .
WT.% HAZARD DATA (SEE SECT. JI
NA
l.
3
~ 4
E~R DAB!LITY/AOUATIC TOXICITY OCTANOL/WATER PARTITION COEFFICIENT
Oegradability:
5 day BOD: O.12Ib/lb
Aquatic toxicity: 4000 mg/liter/24 hr/bluegill/TLm/fresh water
0 00
EPA HAZARDOUS SUBSTANCE? i~6C:I~
IF SO, REPORTABLE QUANTITY # I
,
YES NO
~~~ _.~~-_., -~._- --
WASTE DISPOSAL METHODS (DISPOSER MUST COMPL Y WITH FEDERAL. STATE AND LOCAL DISPOSAL OR DISCHARGE LAWSI
(Oxalic acid aqueous solution is an EPA corrosive waste.) Dissolve acid in a flammable solvent and burn in an approved incin.
erator. Alternatives include burial in a chemical wastes landfill or dissolve in water and neutralize with alkali. The servicesof a
licensed waste disposal contractor may be required.
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RCRASTATUS UNUSED
OF MATERIAL The solid acid as sold is not a "Hazardous vVaste' AI1Y aqueous solutions
that are made up are Hazardous Waste No. DOO2(corrosive) if discarded unaltered.
'PERMISSIBLE CONCENTRATION REFERENCES
OSHA standard, 29 CFR, Part 1910.1000 (July 1, 1977). Reprinted 46 F R 32021, June 19, 1981
Biological: Baselt. A.C., Biological MonitorinQ Methods for Industrial Che~ 1980. Biomedical Pubs, Davis, CA 95616.
STANDARDS t::JOT CLASSIFICATIO~ Not Regulated 149CFR
j~~~~~~I~n, R.E et ai, ~~oxlcology of CCrl1f"1/:'cial ?':JCJ.cl.:! 4:h Ec 1976 Sect:J" III 'Oxala:es iar'"s and
;Vilkins, Baltimore
I (b) N IOSHOSHA, "Pocket Guide 10 Chemical Hazards" DH HS; ~J OSH ?I.JO ,\jo 78210 1978 GPO
I
(c) NFPA Manual 49, "Hazardous Chemicals Data" 1975 ~Jato('al Fire Prt1t~:;tl:Jn As50ca, on 470 At ,.r ~'" Boston
02210
(d) NFPA Manual 491M, "'v1anual of HazardouS ChemiCa Red';: on,' 1975 p29' ; ar~e ;)I..t) I.sr~r as ,
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